CRIEPITechnologies
Showcase for International Partners

CRIEPI’S VISIONCRIEPI sets seven goals to achieveenergy system for sustainable
society by 2050.

Resilient Energy System

Nuclear Safety and Cost-Reduction

Zero- Emission Thermal Power

Energy System for
Sustainable
Society

Renewable Energy as a
Main Power Supply

Innovative Power Grid

Local-Area Energy Supply & Demand

Electrification

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CRIEPI Technologies | Showcase for International Partners

“Industrial researchis the cultivation of
wisdom, and should
therefore contributeto society.”- Yasuzaemon Matsunaga,
CRIEPI founder

CRIEPI’s research areas are ranging widely from environment, renewables,hydropower, nuclear, thermal power, transmission & distribution, electrificationand socio-economics.

Photo by Kira Sugiyama

Since its foundation in 1951, we have accumulated research achievements in the form of
Research Reports, Academic papers, patents, software, etc. Staying true to the spirit of CRIEPI
founder, we strive to continue research activities as well as to provide these achievements foruse and deliver services including consulting to international partners.
CRIEPI Technologies | Showcase for International Partners

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TABLE OF CONTENTS

04

Business Outline

05

Our Expertise ~ Wide-Ranging Research Areas

09

Solutions to Your Challenges
Platform for collaboration and services
Consulting and Information (C&I)
Licensing software and related services
Licensing patents and related services
Testing and qualification
Training & Seminar
Joint Research
Research Reports

19
20
21
36

Research Facilities

55

Facts & Figures

58

Contacts

64

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48
51
52
54

Business
OutlineIn the fiscal year 2019, Central
Research Institute of Electric Power
Industry (CRIEPI) formulated a new
medium- to long-term strategy to
set the future direction of theinstitute and produce a consistentpipeline of insightful research
publications, which can cater to theevolving needs of the electric powerindustry and society.

CRIEPI Technologies | Showcase for International Partners

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OUR VISION FOR TOMORROWIn response to the changing dynamics
in energy supply and demand patterns,
including but not limited todecarbonization initiatives, digitaltransformation, and population
decline in Japan, we have created a
medium- to long-term research plan todrive innovation in energy
technologies and systems. Seven goals
for the future were set (see page 2),
based on the realization that it isparamount for Japan to achieve thevision of "Energy System for
Sustainable Society" by 2050.
Envisioning our seven goals for 2050,
we have started reviewing of ourresearch line-up and optimizing of ourexisting organizational structure. We
will relentlessly strive to produce
highly relevant contents, while
enriching our knowledge in the current
critical areas of research. Furthermore,
we will also identify new research areasthat need to be taken up in a phasedmanner to shift the entire research
portfolio to achieve the seven goals.

06

At the same time, as society becomesincreasingly complex, we intend to
focus on the challenges and issues ofthe electric industry that cannot be
solved simply by applying a single
technology. We will integrate theadvanced expertise that has beendeveloped in the individual fields andtake a bird's eye view of the entire
system to address these complex
needs.
Through this holistic approach, ourresearch can be effectively adaptedand scaled up to derive societal
benefits. To this end, we have begun
to strengthen our research offerings,
focusing on topics such as "Ensuring
Stability of Entire Electric Power
System", "Establishment of Energy
Conversion & Storage Systems","Establishment of Wide-Area Disaster
Countermeasure Technology", and"Quantification of Nuclear Safety".

CRIEPI Technologies | Showcase for International Partners

WE ARE THE ANSWER...

WE ARE PREPARED...

During the fiscal year 2019, weinvested our internal resources indeveloping research needed tosolve the complex challenges inthe electric power industry inJapan. In the nuclear sector, we
worked on quantifying the safetyof nuclear power plants,
including developing aprobabilistic risk assessment(PRA) guide for internal fireincidents at nuclear power plants.
In terms of renewable energy (RE)sources penetration, wedeveloped a “Supply-Demand
Operation Simulator” to assess
the impact of increased RE
sources integration into the grid.
We have also developed afrequency control technology tocope with large generator tripping
due to intermittent RE from thepower grid.

The research ability of young scientists
is central to CRIEPI’s research power.
We encourage young scientists totackle new subjects to enhance theircapability and inspire passion. Ourscientists undertake long-term
assignments at overseas institutions
and/or domestic electric power
utilities to equip themselves with ahigh degree of expertise and deep
understanding of the electric powerindustry. See "Personnel" on p. 62

Research activities funded bygovernment agencies areimportant part of our business tocontribute to the promotion ofenergy-related policies and to thedevelopment of the industrial
codes and standards. These
activities offer us valuable
opportunities to acquire newknowledge to incorporate into
overall research and developmentin the electric power industry. Our
major projects in the fiscal year
2019 include“Technology
development for the improvementof nuclear power safety” fundedby the Ministry of Economy, Tradeand Industry (METI) and“Technology development for thestabilization of the power grid of
next-generation under themassive adoption of renewableenergy sources” funded by the
New Energy and Industrial
Technology Development
Organization (NEDO).

Investment in experimental facilities isanother critical aspect of CRIEPI’s
research capability. We continuously
invest resources to introduce new,original, and, in some cases, large-scale
experimental facilities to obtain resultsthat can directly contribute to solutions
to resolve industry concerns. The “High
Reliability Test Facility for Lithium-ion
Batteries (Charge/Discharge Testing
Facility)” is one such facility weintroduced in 2019, where we expect
further contributions to improve thelifetime assessment and better
understand the safety parameters ofcommercial batteries for power
applications.

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WE ARE PASSIONATE...
We participate in various committeesof the government and academic
societies and contribute to theformulation of energy-related
standards and criteria as well as
policy planning by utilizing ourknowledge and technologies.

We conduct short-circuit tests ontransformers and other power
equipment at our high-power test
laboratory on behalf of powercompanies and manufacturers.

To make our research insights widely
available to the electric powerindustry and society, we publish
research reports and academic
papers. Moreover, we develop,
license, and implement various
patents and software.

In addition, as a "PD qualification
testing organization" under the PD(Performance Demonstration)
certification system, we continue to
conduct qualification testing of
ultrasonic inspection engineers fornuclear power equipment.

See "Research Reports and Papers" on p.59,"Patents" on p.60, and "Software" on p.61

We are developing a free version(CPATFree©) of CPAT© for overseas
use, which is the de facto standard for
power system analysis in Japan.
We contribute to the development oftechnical personnel who have a criticalrole to play in shaping the future of theenergy field by dispatching visiting
professors and accepting internships
based on cooperative graduate school
agreements.

08...AND WE ARE NOT ALONE

See "High Power Short-Circuit Tests" on pp. 48-50

We are working to build anenvironment that encourages
collaboration in different fields andallows researchers to demonstrate
their comprehensive researchcapabilities. In particular, we are
improving the development ofresearch bases, with the Yokosuka
area as a "base for energy industry
technology research" and the Abikoarea as a "base for natural andenvironmental science research".
See "Locations" on p.63

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We continue to maintain and strengthen our research network withleading Institutions across the world (see below).
CEA (France), EDF (France), EPRI
(United States), KEPCO RI (Korea),
KERI (Korea), KHNP CRI (Korea),
OECD/NEA (International
Organization), SCK-CEN(Belgium), SwRI (United States),
TPC, TPRI (Taiwan)

Annual meeting with EDF

The Belgian Nuclear
Research Centre (SCK CEN)

Korea Electric Power
Cooperation Research Institute(KEPCO RI)The Korea Electrotechnology
Research Institute (KERI)
Korea Hydro and Nuclear
Power Co.-Central ResearchInstitute (KHNP CRI)

The French Alternative
Energies and Atomic
Energy Commission (CEA)Electricité de France (EDF)
Electric Power ResearchInstitute (EPRI)

Taiwan Power Company (TPC)
Taiwan Power ResearchInstitute (TPRI)Southwest ResearchInstitute (SwRI)
Organisation for Economic Co-operation and Development/Nuclear Energy Agency(OECD/NEA : International Organization)

Partners for Research Cooperation Agreements

EmergingTechnologies

OUR EXPERTISE

WideRanging
Research
Areas

Environment
Socio-Economics

Electrification

Hydropower
Generation

Advanced fundamental
technologies in various fieldsof the electricity business:
Highly specialized researchers
Unique research facilities
Accumulated knowledge
Network with domestic andoverseas organizations

Renewable
EnergyElectric Power
Transmission andDistribution
Nuclear Power
Generation
Thermal Power
Generation

CRIEPI Technologies | Showcase for International Partners

09

Environment

It is imperative to develop technologies that
supply low-cost and reliable electricity whileinternalizing environmental externalities toachieve a sustainable society. We will contribute to
the development of sustainable energy systems by
examining the role of electricity in climate change
mitigation, developing decarbonization
technologies to achieve circular economy, anddeveloping simulation and monitoring
technologies to ensure harmonious co-existence ofgeneration, transmission & distribution facilities
with the surrounding environment.
Global warming
Environmental assessment
Environmental and health risks

The prediction image of dust dispersion from a coal yard
using a three-dimensional numerical fluid model

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Image: Kurobe Lake Dam In Toyama

To ensure proper maintenance and management of aging
hydroelectric facilities and extend their lifespan andcontinued operation, we are developing technologies tomaintain and monitor these facilities' condition.
Furthermore, the development of preventing hydroelectricfacilities' degradation, sediment management technologies
to help solve sedimentation and muddy water in dams are
currently in progress. We are also developing risk
assessment methods as well as restoration andreinforcement technologies to minimize damage to assets
and technologies to support the speedy recovery ofhydroelectric power facilities in the event of natural
disasters, such as earthquakes and floods. Through these
efforts, we contribute to the continued use of hydropower,
which is a valuable renewable energy source and has an
essential role in stabilizing electricity supply and demand.

Hydropower
Generation

Operation, maintenance, and disaster prevention athydropower facilities

data logger

Compact PC

variable pitch propeller

laser range finder

tracking camera(Intel/Realsence T265)

DJI/GuidancePrototype drone for unmanned inspection of waterways
CRIEPI Technologies | Showcase for International Partners

11Renewable
Energy (RE)We are working to improve output estimation
accuracy and forecasting technologies for solar andwind power, which is the key to creating along-term generation model for the electric powersystem. We are also developing technologies tosupport the expansion of geothermal energy as astable renewable energy generation source and theuse of biomass as carbon-neutral fuels. Throughthese green initiatives, we are working to establish
renewable energy as an indispensable power
generation source in the future energy mix.
Expansion of low carbon power generation
Grid-system stabilization while initiating andexpanding renewable energy

PV systems composed of various high-efficiency
PV technologies

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To restart existing Light-Water Reactors (LWRs)
and ensure stable operations of resumption, we
are working on quantifying nuclear safety,
including PRA implementation. We are also
researching the appropriate management ofspent nuclear fuel to complete the nuclear fuelcycle. Furthermore, we are working onradioactive waste disposal projects and thedecommissioning of nuclear facilities to ensuresustainable and accountable nuclear power
operations. By consolidating thesetechnologies, we contribute to the realizationof an extremely safe and cost-efficient nuclear
power industry.

Nuclear Power
Generation

Utilization and stable operation of existing Light-Water
Reactors (LWRs)
Establishing rational safety measures
Establishing technologies to complete the nuclear fuel cycle
Supporting radioactive waste disposal operations
Supporting decommissioning of nuclear power facilities

CRIEPI Technologies | Showcase for International Partners

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Thermal Power
Generation

We are researching best practices in the operation andmaintenance (O&M) of existing thermal power plants,
and to improve facility performance in response toincreasingly stringent environmental regulations. We
are also developing technologies for the regulationand operation of thermal power plants and tools foranalyzing their dynamic characteristics in response to
the increasing renewable energy penetration into thegrid. Additionally, we are developing new power
generation technologies that reduce environmental
impacts and high-efficiency energy conversion
technologies for low-carbon initiatives to achievezero-emission thermal power generation in the future.

Rational usage of existing thermal power facilities
Responding to increasing introduction of renewable energy
Reducing CO2 emissions

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We are developing technologies to support the rational maintenance,
modernization, and O&M of aging power distribution facilities. Growth inrenewable energy capacity and ongoing power sector reforms havenecessitated the development of technology to cope with sudden
fluctuations of these intermittent sources and maintain grid stability by
isolating specific power sources in the power system during a disaster. In
response to natural disasters, we are developing technology to support
disaster mitigation and restoration by designing wind-, snow- andearthquake-resistant power distribution facilities, thus strengthening theirresiliency. As we embark on this journey, we strongly envision a stable and anovel power supply system in the future.

Rationalization of the formation and O&M of facilities
Supporting power system operation

Electric Power
Transmission
andDistribution

Utilization of demand-side assets
Addressing disaster risks and human risks at power transmission and distribution facilities

Height of
about 160cm

Blindfold tohide the wiring
Mock power
distribution
poles(A) Front

Transformer
body(B) SidePrototype medium-low capacity soft groundingtransformer

Local wind simulation result

CRIEPI Technologies | Showcase for International Partners

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Image: Marunouchi office street

Electrification

To achieve a decarbonized society, we
contribute to the improvement of
performance and promotion of energyefficient technologies, such as heatpump water heaters, heating systems,
and electric vehicles (EVs). The aim is topromote energy conservation andelectrification leading to customer
benefits in consumer, industrial, andtransportation sectors.
Promoting electrification and increasing
customer satisfaction

A heat exchanger for frost-free heat pumps

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To ensure consistency between thedesign of energy market systems and theStrategic Energy Plan aiming atlarge-scale introduction of renewableenergy sources, CRIEPI analyzes
desirable institutional framework of
power utility industry, whose results
have been documented in a series ofreports and proposals. Knowing theimportance of nuclear power for carbon
neutrality, we survey international
trends and developments for nuclear
power generation to reflect to Japan’s
policies. Furthermore, we examine andevaluate the diversifying strategies ofelectric power industry from multiple
angles and present opportunities ofnovel value creation.

SocioEconomics

Ensuring consistency of the Electricity System
Reform and energy policies

CRIEPI Technologies | Showcase for International Partners

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EmergingTechnologies

Amid the expanding introduction of renewable energy
and the increasing use of EVs and storage batteries, we
are working to build power supply and demand
management technologies to improve energy efficiency
and economy in the overall supply and demandparadigm. Moreover, we are developing innovativetechnologies, such as IoT, AI, big data, and novel sensors,
for the electric power industry and other sectors toprovide highly valuable energy services to electricity
consumers. These technologies will assist the
optimization of supply-demand management and themaintenance of plant equipment and social
infrastructure.
Overall optimization through supply/demand coordination
Development of technologies for applications in various fields

Vibrational energy harvester using an electric
double-layer electret

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Solutions to Your
Challenges

Platform forcollaborationand services

Consulting and Information (C&I)
Testing and qualification

Inquires

Specification
to be defined

Proposal

Our expertise and experience canbenefit your business in various ways.
Implementation

Consulting and Information (C&I)
Licensing software and patents

Contract
Signing

Testing and qualification
Training and Seminar
Joint research

Deliverables

Research reports

Completion &Invoicing

Joint research

InquiresResearch Scope Discussion
and Adjustment※ In case of a cost bearer of the
project, invoicing and payment
will be placed after project
Implementation.

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Completion

Contract
Signing

Project
Implementation

70 YEARS OF EXPERTISE AND
EXCELLENCE IN ENERGY
Consulting and Information (C&I)

Understanding the Remaining
Life of the Critical Component
for Thermal PowerCRIEPI’s Achievements

We contributed to the revision of theRemaining Life Assessment of 9Cr Steel Pipe Using

creep life evaluation curve for highMiniature Sample Technology

chromium steel welded joint(Committee of the Federation ofElectric Power Companies of Japan)

Overcoming Your Challenges

To assess the remaining life of 9Cr Steel Pipe
Using Miniature Sample Technology
Our Equipment
References:

Why CRIEPI?

We cut out a small sample from 9Cr steel pipematerial and conduct an analysis of
microstructure as well as a creep test. We
evaluate the results by utilizing our database ofmaterials used for ultrasupercritical facility andassess the remaining life of the 9Cr steel pipe(the base material and welded joint).

Spherical
Aberration-correctedTransmission
Electron
Microscope• Creep Life Assessment Method for Welded
Joint of Grade 91 Steel Using Small Sample,
Joint EPRI-123HiMAT International
Conference on Advances in High Temperature
Materials, 2019, pp.1294-1304• Yaguchi et al., ASME PVP 2016-63316 (2016)• CRIEPI Research Report Q14002 (2014)• CRIEPI Annual Report FY2016 (2017), pp.28-29

CRIEPI Technologies | Showcase for International Partners

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Consulting and Information (C&I)
Renewable
Energy (RE)

Performance and Reliability of Solar Cell
Modules in Outdoor Environments
We evaluate the power generation performance andlong-term reliability of various solar cell modules
under outdoor conditions in Japan (Akagi City, Gunma
Prefecture).

Consulting Services for Advanced Analysis ofSolar Cell Power Generation Performance

Performance measurements of
PV systems composed ofvarious PV technologies
at the Akagi Testing Center

We offer consulting services related to technology foradvanced analysis of solar cell power generation
performance by extracting only highly accurate
measurement data (big data) from photovoltaic power
generation systems and solar cell modules.

References:

Keywords

T. Ishii and A. Masuda, Annual degradation rates ofrecent crystalline-silicon photovoltaic modules, Progress
in Photovoltaics: Research and Applications (2017),
25(12), 953-967

Photovoltaic (PV)T. Ishii, R. Sato, S. Choi, Y. Chiba, and A. Masuda,
Development of a practical method of estimating electric
power from various photovoltaic technologies with highprecision, Japanese Journal of Applied Physics (2017),
56(8S2), 08MD05

22

High precision solar simulator for solar cells
using xenon short arc lamp

CRIEPI Technologies | Showcase for International Partners

Photovoltaic modules
Reliability
Big data
Statistical techniques

Consulting and Information (C&I)
Nuclear Power
Generation

Investigation of Flow Accelerated Corrosion(FAC) Behavior in Carbon SteelWe will investigate flow accelerated corrosion (FAC)
behavior of carbon steel in liquid single-phase flow athigh flow velocities. Possible test parameters include
temperature, flow velocity, and water chemistry (pHand dissolved oxygen concentration).
High flow velocity and high temperatureloop system for corrosion evaluation

References:
K.Fujiwara, K. Yoneda, F. Inada, "Effect of Dissolved
Oxygen on Flow-Accelerated Corrosion in Neutral and
Alkaline Solutions", Proc. EUROCORR 2017, 78701(2017).
K. Fujiwara, Y. Uchiyama, K. Yoneda, F. Inada, Proc. 21stInternational Conference on Water Chemistry in Nuclear
Reactor Systems (2018).

Keywords
Flow accelerated corrosion
Feed water piping
Carbon steel
Dissolved oxygen

CRIEPI Technologies | Showcase for International Partners

23Consulting and Information (C&I)
Nuclear Power
Generation

Testing Ceramic Melter Performance forRadioactive Waste Management
We will conduct vitrification tests using our small-scale
Joule-Heated Ceramic Melter.
We will produce vitrified glass by continuously feeding
simulated radioactive waste and glass material from the
top of the molten glass in the ceramic melter andremoving the molten glass from the bottom of theceramic melter and cooling it.
Tests using this facility are effective for analyzing theformation state of the cold cap on the melted surface,
the properties of the vitrified product, and the off-gas
migration behavior during glass melting.

Vitrification experiments using small-scale glass melter“Please” note that we do not perform tests that handle
radioactive materials.
References:
CRIEPI Annual Report FY2017(2018), pp.26-27
K. Uruga, T. Tsukada, T. Usami, “Generation mechanism andprevention method of secondary molybdate phase duringvitrification of PUREX wastes in liquid-fed ceramic melter,”J.
Nucl. Sci. Technol., 57(4), 433-443 (2020).
K. Uruga, T. Tsukada, T. Usami et al., “STUDY FOR GENERATIONOF YELLOW PHASE USING SMALL SCALE JOULE HEATINGMELTER,”GLOBAL2015, 5191, Paris, France (2015).

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Keywords
Vitrification
Radioactive waste
Cold cap
Volatilization

Consulting and Information (C&I)
Nuclear Power
Generation

SIRIUS-3D Test Facility for Two-Phase
Measurements inside of Nuclear Reactors

We reproduce two-phase flow conditions in nuclear
reactors using our test facility "SIRUIS-3D", and provide
high-resolution data measured with the high-energy
X-ray CT system.

Test facility for three-dimensional
thermal hydraulics in light-water
reactors (SIRIUS-3D)

References:
T. Arai, A. Ui, M. Furukawa, R. Okawa, T. Iiyama, S. Ueda,
K. Shirakawa and K. Kito, “Void fraction distribution in arod bundle with part-length rods via high-energy X-ray
computed tomography”, Mechanical Engineering
Journal, Vol.8, No.4, 2021
A. Ui, T. Ozaki, T. Arai, M. Furuya, R. Okawa, T. Iiyama andS. Ueda, “Optimization of two-phase flow models andestimation of cross-flow in fuel assemblies using data
assimilation”, Multiphase Science and Technology, Vol.
34, Issue 2, 2022

Keywords
Two-phase flow
X-ray/CT
Void fraction
Data assimilation

CRIEPI Technologies | Showcase for International Partners

25Consulting and Information (C&I)
Nuclear Power
Generation

Multi-purpose Steam Testing Facility for
Flow Simulation in Plant Piping
Our multi-purpose steam testing facility is capable ofprecisely controlling the state quantity (e.g., pressure, flow
rate, wetness) of high-speed steam flow. With this facility,
we conduct multi-purpose tests that simulate the flow
conditions of steam system piping in various plants.
Past test results: Vibration phenomenon caused bypressure pulsation at steam piping branches,characteristics of measured values of steam flow meters,
and pipe wall thinning phenomenon caused by high-speed
droplets in steam flow, etc.
Multipurpose Steam Test Facility
References:
Y. Uchiyama, R. Morita, “Combined Effects of Steam Wetness andPressure on Characteristics of Acoustic Resonance Amplitude in
Closed Side Branch”, J. Pressure Vessel Technol. Feb 2021,
143(1): 011402 (10 pages), 2020
Y. Uchiyama, R. Morita, S. Umezawa, K. Sugita, “Flow ratemeasurement of wet steam flow by clamp-on ultrasonic flow meter”,
Transactions of the JSME, Volume 86 Issue 887 Pages 20-00098, 2020
R. Morita, Y. Uchiyama, “Development of a Wall Thinning Rate Modelfor Liquid Droplet Impingement Erosion”, Proceedings of
the ASME 2012 Pressure Vessels & Piping Division Conference,
PVP2012-78443, pp. 1017-1023, 2013

Keywords
Superheated/wet steam flow control and measurement
Acoustic resonance, pressure pulsation
Liquid droplet impingement erosion
Steam flow meter benchmark test in wet steam
Wet steam flow visualization
Continuous supply of negative pressure steam flow

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Consulting and Information (C&I)
Nuclear Power
Generation

Corrosion Inhibition Technologies forHigh-Temperature and High-Pressure Plants
We propose corrosion inhibition technologies for actual
plants. To make proposals, we evaluate the effects ofwater chemistry (e.g.,temperature, pH, dissolved oxygen
concentration, dissolved hydrogen concentration,
chemicals) on the corrosion behavior of structural metals
in high-temperature and high-pressure water up to 350°C,
and analyze oxide films to clarify the phenomena.

High temperature and high pressure
loop system for corrosion evaluation

References:
M. Domae, K. Fujiwara, Y. Ueyama, W. Sugino and K.
Hisamune, "Development of Advanced Radioactivity
Control Method (ARCOM) in LWR Primary Systems",
Proceedings of nuclear plant chemistry conference 2014
Sapporo (NPC 2014), Atomic Energy Society of Japan, 2014
*International Conference on Hydrochemistry of Nuclear
Power Plants 2014 Sapporo

Keywords
Water chemistry
Corrosion
High-temperature and high-pressure water
Structural material

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27Consulting and Information (C&I)
Thermal Power
Generation

Diagnosis of boiler conditions during
operation
We diagnose whether the boiler is operating in a healthy
condition by measuring the temperature of combustion
gas in the boiler with our original radiation thermometerand analyzing the operation data; we then propose
measures to improve operation.

Temperature measurement at an actual power plant andexample of gas temperature distribution in the boiler

References:
CRIEPI Research Report M11013 (2019)
CRIEPI Research Report M15008 (2016)

Keywords
Pulverized coal fired boiler

Chemical cleaning

Ash adhesion

Scale

Clinker

Micro sample testing

Furnace gas temperature

Boiler tube

Creep

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Consulting and Information (C&I)
Thermal Power
Generation

Drone Technology: Advancing Safety andEfficiency in Thermal Power Plant Inspections
When inspecting thermal power generation facilities,
working at heights involves the installation and removalof scaffolding around the perimeter, the use of elevatedvehicles, and rope access, which can be hazardous. In
addition, divers who perform underwater inspections ofstructures often have limited time to work and are at
risk in culverted areas. For this reason, the use of drones
is effective.
By using drones equipped with real-time kinematic
capabilities, we can create 3D models with higher
accuracy than conventional drones with less effort.

Precise positioning drone

Keywords
Reference:
CRIEPI Research Report Q19003(2020)

Drone
Laser ranging
Flight control
Close visual inspection
Wall surface

CRIEPI Technologies | Showcase for International Partners

29Consulting and Information (C&I)

Hydrogen supply chain evaluation

Life assessment of hot-gas-path parts in gas turbine

We evaluate the economics and environmental
performance of the supply chain, including theconversion process of domestic and foreign green/
blue hydrogen to various carriers.

We perform numerical analyses on heat and stress, strength tests, andmicrostructural observation of hot-gas-path parts in gas turbines toevaluate their service life based on temperature distribution andmaterial damage degradation. These enable us to obtain data to
determine the appropriate replacement or repair timing of the parts,
thereby reducing maintenance costs.

References:
Economic Analysis of Blue Hydrogen in Overseas
Production Sites(CRIEPI Research Report/Under
Preparation)
CRIEPI Research Report M20002(2021)
CRIEPI Research Report M19003(2020)

References:
CRIEPI Annual Research Report 2009 (2009), pp102-103”Derivation of temperature-estimation equation based on microstructuralchanges in coatings of in-service blades of gas turbines”, Journal ofEngineering for Gas Turbines and Power, Vol. 133, No. 2, 2011, 022101.
”Development of temperature estimation method for a gas turbine transition
piece”, Proceedings of ASME Turbo Expo 2016, 2016, GT2016-56182”Morphological changes inγ’ phase by creep, aging and aging after creep for
polycrystalline Nickel-based superalloy”, Proceedings of ASME Turbo Expo
2017, 2017, GT2017-64104

Keywords

30

Hydrogen Energy Carrier

Cost analysis of hydrogen

Methanation

Power to Gas

Synthetic Methane

Renewable energy

BladesGas turbines

Power Generation Cost

Water- and steam- electrolysis

Cobalt compounds

Nickel compounds

CO2 Emission Intensity

Output control

Diffusion

Thermal barrier coatings

CRIEPI Technologies | Showcase for International Partners

Keywords

Thermal Power
Generation

Consulting and Information (C&I)
Thermal Power
Generation

Evaluation of environmental resistance of
ceramics (CMCs, coating materials)
We conduct exposure tests in high-temperature andhigh-speed combustion gas flow for ceramics (CMCsand coating materials) that are considered for
application to high-temperature components in jetengines and gas turbines. We will evaluate theirenvironmental resistance and soundness.
CRIEPI Burner Rig Test Equipment

Keywords
Ceramics

Reynolds number

References:

Combustion gases

Temperature“Recession Rate Prediction for Ceramic Materials in
Combustion Gas Flow”, Proceedings of ASME Turbo Expo
2003, 2003, GT2003-38886

Flow (Dynamics)

Water vapor

Silicon nitride ceramics

High temperature

Pressure

Weight (Mass)

SiliconEtching

Gas flow

Grain boundaries

Gas turbines

Hot pressing

Mass transfer

Water“Exposure Test Results of Lu2Si2O7 in Combustion Gas
Flow at High Temperature and High Speed”, Proceedingsof ASME Turbo Expo 2004, 2004, GT2004-54277

OxygenCRIEPI Technologies | Showcase for International Partners

31Consulting and Information (C&I)
Thermal Power
Generation

Evaluating the Grindability andCombustibility of Solid Fuels for Pulverized
Coal-Fired Power Plants
We evaluate the grindability and combustibility of solid
fuels used in pulverized coal-fired power plants, such ascoal and biomass, using coal combustion test facilities.
Through this evaluation, we can assess the applicabilityof various fuels to pulverized coal-fired power plants
and identify issues before using them.

Coal combustion test facility
Reference:
CRIEPI Research Report W03025(2014)
Keywords
Coal
Thermal power station
Pulverized coal combustion
Furnace
Flue gas treatment equipment

32

CRIEPI Technologies | Showcase for International Partners

Consulting and Information (C&I)
Electric Power
Transmission andDistribution

Insulation Deterioration Evaluation of
XLPE Cable
Understanding the dielectric strength of aged XLPE
cables is very important for cost-effective undergroundelectric power transmission, which is often applied inurban areas. This facility consists of the pre-breakdown
discharge detection testing system to extract the watertree which develops in the electrical insulation layer ofthe XLPE cable and causes the degradation of its
electrical insulation capability. The obtained results areindispensable for management of the aged XLPE cables.
Highly Aged XLPE Power Cable
Deterioration Test Facility

Keywords
Decommissioned XLPE cable
Reference:
T, Takahashi, "Water Trees as a Dominant
Deterioration Cause of 60 kV Class Dry CuredXLPE Cables" (CEDIP 2019)

Electrical insulation capability and deterioration
Partial discharge
Water-tree degradation

CRIEPI Technologies | Showcase for International Partners

33Consulting and Information (C&I)
Emerging
Technologies

Performance Evaluation of Lithium-ion Batteries
We evaluate factors contributing to performancedegradation of Lithium-ion batteries. In details, we perform
disassembly of the degraded batteries, material evaluationof the battery components, characteristics evaluation of thebattery electrodes by reassembling cells with the electrodes,
and nondestructive evaluation such as micro-heatmeasurement and precise current measurement. Moreover,
we can perform lifetime estimation by accelerating theperformance degradation in low/high temperatureenvironment and execution of charging/ discharging cycles.

Reference:
CRIEPI Annual Report FY2017 (2018), pp.58-59

Charge-discharge performance test device

Keywords
Lithium-ion Battery
Life Evaluation

34

CRIEPI Technologies | Showcase for International Partners

Consulting and Information (C&I)
Emerging
Technologies

Evaluation of High-Voltage, High-Current
Power Semiconductor Devices for Power
System Control
We evaluate the current-voltage characteristics andswitching characteristics of high-voltage, high-current
power semiconductor devices (thyristors, Gate TurnOff (GTO) thyristors, diodes) for power system control.

Keywords
Power semiconductor devices

Evaluation equipment of current-voltage andswitching characteristics of power
semiconductor devices

Thyristors
GTO thyristors
DiodesHigh-voltage
Corrent-voltage
Swtiching characteristics

CRIEPI Technologies | Showcase for International Partners

35

DEEPER
THAN
EVER…
DEEPER
THAN
EVER…
WITH
OUR
SIMULATORSWITHOURSIMULATORS

Schematic Editor

Licensing software and related services

The Smart Grid
Simulator

Waveform
Plotting Tool

Line/Cable Constants
Calculation Tool

XTAP (eXpandable Transient Analysis Program)

CRIEPI’s Clients/Users

Overcoming Your Challenges

Power utility companies in Japan

To perform simulations of power systems,

use XTAP as the standard

including power electronics circuits.

simulator. Major manufacturers,
universities, and research
Our Tools

institutes are our clients/users.

Why CRIEPI?

A computer program developed by CRIEPI for
the waveform-level or Electromagnetictransient (EMT) simulations of power systems
is licensable. Lectures and training to use will
be delivered upon request.

36

CRIEPI Technologies | Showcase for International Partners

XTAP (eXpandable
Transient Analysis
Program)

References:• CRIEPI Research Report H15004 (2015)• CRIEPI Research Report H13010 (2013)• www.xtap.org

SOFTWARE SOLUTIONS OF
YOUR OWN…PROVIDED BY US
Licensing software and related services
Past Experimental Results

Prediction of thermal effluent
dispersion as part of a feasibility

Prediction of buoyant effluent dispersion
in coastal area

study for an overseas power plant
construction project.

Thermal and nuclear power plants, LNG
facilities, seawater desalination plants, sewage
treatment plants, and other facilities located incoastal areas discharge wastewater that has aEnvironment

different temperature and salinity from theambient fluid, and there is concern about the

Keywords

impact on the coastal environment.

Negative buoyant jet

We can predict the diffusion range of

Density current

wastewater discharged into coastal areask-ε model

through hydraulic model experiments and 3D
numerical models.
The numerical model uses a turbulence model
to calculate the 3D diffusion process of density
jets from underwater outlets .The model cansimultaneously calculate water intake anddischarge as well as evaluate the recirculationof wastewater, and can evaluate therecirculation of wastewater.

Experiment on the
diffusion ofdischarged coolingwater

LNG plant

Reference:
CRIEPI Annual Report FY2015(2016), pp.52-53
Niida Y., Nakashiki N., Sakai S., Tsubono T., A
THREE-DIMENSIONAL MODEL OFDISCHARGED COLD WATER JET IN COASTALAREA, EMECS11-Sea Coasts XXVI Joint
Conference, 2016

CRIEPI Technologies | Showcase for International Partners

37

Licensing software and related services

Image measurement of water surface
velocity and temperature by using
unmanned aerial vehicle (UAV)

Environment

By applying multiple image processing method to

Keywords

images taken by UAVs (drones), we obtain water

UAV

temperature and velocity distributions.

Jets

We monitor effluent dispersion from power plants,

Thermography

factories, and sewage treatment plants located incoastal areas, as well as backwaters flow velocities

Imaging measurement

downstream of bridges and offshore wind farm

Coastal environment

foundations and piles. In this way, we obtainmeasurement data with a high spatio-temporal
resolution not available with conventional methods.
Reference:

Wastewater observation
using UAV38

CRIEPI Technologies | Showcase for International Partners

Y. Niida, T. Tsubono, K. Nakaya, S. Sakai, N.
Nakashiki, T. Ishii, "MEASUREMENT OF THE
BUOYANT JET AT SEA SURFACE BY USINGTHERMOGRAPHY MOUNTED ON UAV",
Journal of Japan Society of Civil Engineers,
Ser. B2 (Coastal Engineering), Volume 74
Issue 2, Pages I_1423-I_1428, 2018

Licensing software and related services

TONBOS(Software to numerically simulate lift off and flight of potential
missiles driven by a tornado )TONBOS-pro(Probabilistic high wind-borne missile analysis code )TONBOS-pro is an analysis code that can evaluate the stochastic

TONBOS is a numerical analysis code that can compute the lifting andflying behavior of unconstrained objects (potential missiles) on the
ground driven by the wind force of tornadoes. Either the Rankine vortex
or the Fujita model (DBT-77) can be selected as the wind field for
tornadoes; in the Fujita model, objects on the ground are modeled inconsideration of li˜ forces due to ground effects. TONBOS can be runwith the Windows command prompt. An Excel-based version is alsoavailable for greater efficiency in data input and output via the graphicaluser interface (GUI).

dispersion characteristics of flying objects that are lifted off andscattered by typhoons and tornadoes. Considering the randomlychanging initial and aerial orientation of flying objects, the softwaremodels the aerodynamic forces acting on wind-borne objects based oncross-flow theory. The software also considers the lift forces acting on
flying objects placed in contact with the ground, allowing us to evaluate
the scattering and falling behavior of potential missiles that are initiallyplaced on the ground or in the air under the conditions of the surfaceboundary-layer wind field and tornado wind field.

Simulation resultsby TONBOS
Keywords

Keywords

TornadoFujita modelAir-borne missile

Numerical simulation

Lift off and flight of objects

Simulation resultsby TONBOS-pro

Nuclear Power
Generation

References:
CRIEPI Research Report N14002(2014)
Y. Eguchi, K.D. Hope, B. Cassenti, V. Moreno, J. Bebrin and E. Li, Benchmark Computationof Tornado-borne Missile Flight using Fujita Wind-field Model, Annual Meeting of theJapanese Society of Fluid Mechanics 2016.

High wind

Tornado-borne missile

Probabilistic assessment

Random rotation

Typhoon-borne missile

Nuclear Power
Generation

Reference:
CRIEPI Research Report O20004(2021)

CRIEPI Technologies | Showcase for International Partners

39

Licensing software and related services
Nuclear Power
Generation

Virtual UT system
Keywords

Ultrasonic testing (UT) to detect defects in steel

Ultrasonic Testing (UT)

Nuclear Power Plant

welds is highly dependent on the test

Inservice Inspection (ISI)

Virtual System

Examination Personnel

Human Factor

engineers’ skill. In particular, detecting defects
on the inner surface of pipe welds is difficult

PD Qualification System

and requires training for the test engineers.
Training requires a large number of flawed
specimens, which are very expensive.
Our Virtual UT System simulates UT work on
actual piping, which enables the training andReferences:evaluating of test technicians without the use• H. Shohji, K. Hide, “Development of Virtualof actual test specimens or equipment.
The Virtual UT System can be provided assoftware, as a system, or as a basic training
set.

Virtul UT (Ultrasonic Testing)systemUltrasonic Testing System,” Proceedings of 11th
International Conference on NDE in Relation to
Structural Integrity for Nuclear and Pressurized
Components,WE_1_A-4 (2015).
• H. Shohji, S. Lin and K. Hide, “Development of a
Virtual Ultrasonic Testing System”, E-Journal ofAdvanced Maintenance (Web) (EJAM (Web)), Vol.10
Issue 2, Japan Society of Maintenology, 2018
• CRIEPI Annual Report FY2015 (2016), pp.26-27• CRIEPI Research Report Q14007 (2015)• CRIEPI Research Report Q16012 (2017)• CRIEPI Research Report Q19007 (2020)• CRIEPI Research Report EX21001 (2022)

40

CRIEPI Technologies | Showcase for International Partners

Licensing software and related services

PHALSER

Nuclear Power
Generation

PHysics-based particle AnaLyzer for SEveRe
accident

Keywords
Spreading and solidification ofmolten material

Spray droplets dissipation

Particle method

PHALSER is a particle method-based simulation

Melting and solidification of materials

code that can simulate complex phenomena

Fluid dynamics

including melting, solidification, andSevere accident

rearrangement of materials based on physicallaws by implementing models of various physicalphenomena.
PHALSER incorporates each physical model as amodule, and by selecting the appropriate module,

Eutectic liquefaction

Tsunami flooding inside
reactor building

it is possible to analyze a wide variety ofphenomena (e.g.,tsunami inundation behavior,

Reference:spray dissipation behavior, fuel melting and

K. Inagaki, "Development of multiphysics

relocation during a nuclear reactor accident).
Achievements to date: Numerous analyses havebeen conducted as part of research commissionedby the government and other organizations.

Simulation examples of
PHALSERparticle method simulation code PHALSER and
its application to various phenomena" Journalof Nuclear Science and Technology 58, 8 (2021)
857-871+I23

CRIEPI Technologies | Showcase for International Partners

41

Licensing software and related services

EnergyWin
EnergyWin is a thermal efficiency analysis application
for power generation systems. It can be deployed not
only with conventional thermal power systems but
also advanced/innovative power systems like
Integrated Coal Gasification Combined Cycle (IGCC),
Fuel Cell, and so on. EnergyWin enables users to
identify degradation factors in thermal efficiency andanalyze the system to support the development of
new power generation.

Thermal Power
Generation

Heat and Mass Balance

Calculation result

Keywords
Thermal efficiency
Thermal power plant
Thermal efficienc y management
Heat and mass balance analysis
Thermal efficiency analysis program

EnergyWin

42

CRIEPI Technologies | Showcase for International Partners

Reference:
EnergyWin
https://criepi.denken.or.jp/en/energy/
research/research11.html

Licensing software and related services

MapsGT (Maintenance Planning Optimization
Support System for Gas Turbine Hot-Gas-Path
Parts)

Thermal Power
Generation

Parts rotation schedule
Parts information (e.g. Liner)

MapsGT is the management support software tosimulate usage records to support operation
planning of gas turbine hot-gas-path parts. Users can
simply provide operational information inputs; thevast number of usage records for hot-gas-path parts
can be simulated. When building the operating plan,
the remaining service life of hot-gas-path parts is
calculated according to simulated usage records andscheduled operating hours, MapsGT predicts the
durability of parts for the next planned inspection.
The cost calculation of operating plan is calculated,
users can also evaluate the cost variation whilechanging the inspection plan.

Keywords

Thermal power generation
Planning optimization
Gas turbine
Maintenance planning
Hot gas path part
Cost estimate
Cost management

MapsGT

References:
CRIEPI Research Report W02014 (2002)
CRIEPI Research Report M06003 (2006)
CRIEPI Research Report M07008 (2007)

CRIEPI Technologies | Showcase for International Partners

43

Licensing software and related services

CRIEPI Coals
Thermal Power
Generation

CRIEPI Coals is the software for visualizing the cost
and the impact on the machine performance andemissions related to the operation and the coal types
in pulverized coal fired power plants. Fuel costs, ashdisposal cost, ammonia cost, and other cost areevaluated, CRIEPI Coals visualizes the economic
performance, fuel properties, and operating
conditions (Co-firing rate, O2 concentration at theeconomizer, etc.), and recommends the effective
approaches for low grade coal utilization andoperation improvement.

Keywords

Pulverized coal power plant
Coal
Operation
Evaluation
SoftwareApplication imageof CRIEPI Coals

44

CRIEPI Technologies | Showcase for International Partners

Reference:
CRIEPI Annual Report FY2018(2019) ,pp.28-29

Licensing software and related services

NuWiCC-ST(Numerical wind simulation code of CRIEPI - Sea-salt particle

NuWiCC(Numerical wind simulation code of CRIEPI)transport edition)
NuWiCC is a numerical fluid dynamics simulation code developed forthe wind-resistant design of transmission towers, selection of suitable

NuWiCC-ST is a numerical simulation code developed for estimating thesites for wind turbines, and evaluation of wind power generation

corrosion of power transmission and distribution facilities. The software

output. It can estimate the mean and fluctuating amounts of 3D windcan estimate the sea salt flux affected by topography and land use based

flow affected by topography and land use.

on numerical fluid dynamics simulation. Moreover, estimation of widearea distribution of long-term cumulative sea salt mass is possible.

Yearly mean distribution maps ofairborne sea salt
at 40 m above ground height

Local wind simulation result

Keywords

Keywords
Local windTransmission tower

Mountainous area

Wind power generation

Wind-resistant design

Electric Power
Transmission andDistribution

Sea salt particle

Statistical method

Local windPower transmission facility

Computational fluid dynamics

Electric Power
Transmission andDistribution

References:
References:
CRIEPI Research Report N08047(2009)

Suto, H. et al. (2017). Computational fluid dynamics simulation and statistical procedure
for estimating wide-area distributions of airborne sea salt considering local groundconditions. Structure and Infrastructure Engineering, 13(19), 1359–1371.
Suto, H. et al. (2021) Prediction of surf-zone and open-ocean airborne sea-salt spatial
distribution via computational fluid dynamics and statistical method, Corrosion
Engineering, Science and Technology, 56:4, 392-400.
CRIEPI Technologies | Showcase for International Partners

45

MAKING NUCLEAR SPENT FUEL STORAGE
SAFE AND RELIABLE…AS IT SHOULD BE
Licensing patents and related services
A METHOD TOCRIEPI’s Contributions

Ensure Sealing
Performance of Canisters

This leak detection method with highsensitivity contributes to the safety andreliability of the concrete casks. In
addition, if the requirements for SCC

inside Concrete Casks

inspections are eliminated or mitigated,
our method will significantly reduce

Overcoming Your Challenges

inspection expenses.

To check sealing performance of canisters
during storage
Why CRIEPI?

Our method is based on using temperature changes on thecanister surface to detect helium leaks from the canister due
to stress corrosion cracking (SCC). It is a method for
estimating the leak amount ratio to the heat rates of the

Our Equipment

canister by measuring the increase in temperature difference
between the bottom and the lid of the canister. Compared tousing the metal cask, in which a pressure gauge is installed,
this method is more economical and provides ease ofmaintenance for a sensor, as a thermo-sensor is installed
only on the exterior surface of the canister inside theconcrete cask. In addition, there is no need to drill a hole for
installing the thermo-sensor in the canister; therefore, nomore creation of leakage risks. We also have a method
applicable to horizontal silo storage systems.

46

CRIEPI Technologies | Showcase for International Partners

1 / 4.5 scale cask
model

References:
•
•
•
•
•
•

CRIEPI Research Report N04031 (2004)
CRIEPI Research Report N15006 (2015)
CRIEPI Research Report N18007 (2019)
CRIEPI Research Report N17007 (2018)
CRIEPI Research Report N17013 (2018)
Takeda et al., Nuclear Engineering and Design[Vol.238](2008)• Takeda, Nuclear Engineering and Design[Vol.352](2019), [Vol.362](2020)

More of our other interesting technologies…

Ashes
CRIEPI Coat®

Thermal spraycoatings

Groove-likecorrosion(inside thesprayed coating)Groove-likecorrosion (inside
the substrate):
About 300 ˙m

Thermal Power
Generation
Keywords

Water-cooled
wall pipe basematerial

Boiler heat transfer surface
Superheater tubes
Reheater tubes

CRIEPI Coat®
This coating prevents thinning and cracking of the sprayedcoating and sulfide penetration on walls. For boilers in thermal
power plants, this coating can prevent sulfide corrosion andhigh-temperature oxidation within the temperature range of
300°C to 700°C.
This coating is effective to prevent concurrent corrosion
where the groove corrosion occurs, and the progress of thegroove corrosion can be suppressed at the same time. In
addition, this coating can suppress the thinning and oxidation
on walls, and help prolong the lifetime of sprayed coating.

Stub tubes
High temperature oxidation
Corrosion protection

References:
•
•
•
•
•

CRIEPI Research Report M04 (2015)
CRIEPI Research Report M16001 (2017)
CRIEPI Research Report M18004 (2019)
CRIEPI Research Report M19001 (2020)
Development of SiO2/TiO2/Al2O3-based /TiO2
coating for preventing sulfide corrosion in thermal
power plant boilers, Applied Thermal Engineering,
153 (2019) pp.242-249

CRIEPI Technologies | Showcase for International Partners

47

LOCAL LABORATORIES…
WITH GLOBAL CAPABILITIESTesting and qualification

High Power
Short-Circuit Test

Since the High Voltage Power Laboratory,

High Power Testing (Short-Circuit Testing)conducted research and tests on the

CRIEPI’s Journey

now part of CRIEPI, installed high power
test facilities in 1963, CRIEPI has
short-circuit performance of power
equipment and materials. Later the HighPower Testing Laboratory was

Overcoming Your Challenges

established in April 2001 and granted by

To perform short-circuit testing

the Japanese Accreditation Board for
Conformity Assessment (JAB) in
compliance with ISO/IEX17025. This

Why CRIEPI?

Laboratory meets international

We use various equipment of short-circuit
generation (15 kV, 2,500 MVA, current up to
150 kA) to perform high power short-circuit
testing. We also perform accreditation tests,
such as making and breaking performance
tests for switchgears, general tests, such as arc
tests, short time current test, and synthetic
test. Disaster prevention measures test of OF
cables, arc fault fire verification test ofelectrical cabinets and bus duct in nuclear
power plants.

Our Equipment

standards and is involved in various test
activities that include publishing test
reports and issuing certificates.

High Power
Short-Circuit Testing
Facility

References:• M. Iwata et al., “Calculation of Molten andBroken Characteristics of ACSR Strands
Due to AC Fault Arcs”, IEEE Transactions on
Power Delivery, Vol.34, No.2, 2019
• High Power Testing Laboratory
https://criepi.denken.or.jp/en/hptl/

48

CRIEPI Technologies | Showcase for International Partners

TOP-OF-THE-LINE FACILITIES…FOR CRTITICAL TASKS

Accreditation tests

General tests

Short-circuit tests for VCBs

High-power arc tests for polymer insulators

Making and breaking tests for switchgear

The High Power Testing Laboratory is a member of JSTC
(Japan Short-Circuit Testing Committee), which is a memberof the international Short-Circuit Testing Liaison (STL)

Short-circuit tests and out-of-phase making andbreaking tests for circuit breakers (up to rated voltage of
36 kV and rated short-circuit breaking current of 25 kA)

Other tests•

Short-time withstand current and peak withstand current
tests for circuit breakers, disconnectors and earthing
switches, load break switches, metal-enclosed switchgear,and gas-insulated switchgear (current up to 150 kA,
duration up to 1 s / current up to 60 kA, duration up to 2 s)•

Short-circuit tests for power transformers, surge arresters,
and power fuses (test capacity depends on item tested)

High-power arc tests(AC/DC)
•
•
•
•
•
•

Insulators
Insulator assemblies
Switchgear
CablesCable assemblies
Transformers

Short-time current tests(AC/DC)•••

CablesTransformers
Other equipment

Synthetic and other tests••

Synthetic tests for circuit breakers
Duty tests for surge arresters

High power short-circuit test facilities
•
•
•
•
•
•
•
•

Short-circuit generator
High voltage short-circuit transformer
Ultra-high current transformer
Extra-high voltage short-circuit transformer
Synthetic test facilities
DC short-circuit test facilities
Indoor test cell with soundproofing
Automatic control system and computermeasurement system for short-circuit tests

CRIEPI Technologies | Showcase for International Partners

49

HEAF (Arc internal Test on theelectrical equipment(Electrical Cabinet, Bus Duct etc.))
High-Energy Arcing Fault (HEAF) events in electrical equipment(such as electric cabinets, bus ducts, etc.) are recognized as one of
the risks that impact the safety of power plants, such as thermal andnuclear power plants. Finding solutions for HEAF is a critical issue
worldwide. Only CRIEPI has conducted research and development
on HEAF fires and succeeded in standardizing the testing methods
and established the HEAF fire prevention method.

References:• K. Shirai et al., “Proposal of an Evaluation Method for Preventionof High Energy Arcing Fault (HEAF) Induced Fires at Low and High
Voltage Electrical Cabinets”, 16th Int. Post-Conf. Seminar on Fire
Safety in Nuclear Power Plants and Installations, 2019.10.
• CRIEPI Research Report O18002(2018)• CRIEPI Research Report O20009(2021)

50

CRIEPI Technologies | Showcase for International Partners

Unlock your potential …with ourcutting-edge training sessions
Training & Seminar

Series of technologies related tothe syngas treatment for thegasification based energy
conversion systems

Why CRIEPI?

We can provide you with:-Customized dry gas purification processapplication strategies-Analytical techniques for various
impurities related to gasification and gas

Overcoming Your Challenges

purification

The syngas treatment process course provides-Rational methods for the development

the extended view and practical information onof pyrochemical scavengers for various

the dry syngas purification technology for various

impurities

energy conversion systems based on coal-Engineering evaluation methods for thegasification. It delivers promising development

design and integration of gas purification

status of the technology from sorbent

processes

development to the process development
including plant construction.
CRIEPI’ s Contribution

Our R&D activities since 1980s completeddevelopment of core technologies of dry syngas
purification, which includes methodologies for
impurity measurement, sorbents development,
and evaluation of process performance. They
encompass information to deliver thetechnologies to a practical application to actual
coal-based energy conversion systems.

Attainments

Reaction mechanism
analysis with in situ XRD for
determining sorbent
behavior under pressurized
and high temperaturesyngas condition-Engineering evaluation methods forscale-up of dry gas purification systems

Reference:• Makoto Kobayashi, Dry Syngas
Purification Processes for Coal
Gasification Systems,
ISBN: 978-0-12-818866-8,
PUB DATE: November 2020
CRIEPI Technologies | Showcase for International Partners

51Collaboration… leads toinnovative solutions
Joint Research

Utilization of thermal power plants to accelerate
an integration of intermittent renewable energy
sources for Joint Crediting Mechanism (JCM)

Dynamic analysis tool and technique forenergy systems
We have developed a dynamic analysis tool for various energy systems (e.g.,

We are engaged in research to promote both the introduction of renewablesteam power generation, combined cycle, various new power generationenergy and the stable operation of the power system by incorporating thesystems, hot water heat pumps, etc.) that can perform operational

surplus power generated by the increase in renewable energy into the load

simulations for various system configurations and operating conditions.

regulation operation of thermal power generation facilities.

By utilizing this analysis tool, it is possible to construct a simulator that can

We invite you to join us in evaluating methods to utilize existing thermal

quickly and quantitatively predict the operational characteristics of thepower generation to promote the introduction of renewable energy.

target system. Would you like to conduct a joint project with us to search for

Collaboration work with us to promote electricity decarbonization, powera system configuration with excellent operability and evaluate operational

system stability maintenance, and sustainable economic development incontrol measures?

Japan and elsewhere, and to enable the use of JCM together with thetarget countries.
Keywords
Coal-fired power plant

Secondary control reserve

Operational flexibility

Demand–supply balance

Load frequency control

Energy loss

Thermal Power
Generation

Reference:"Methodology to evaluate contribution of thermal power plant flexibility to power systemstability when increasing share of renewable energies: Classification and additional fuelcost of flexible operation" Fuel 292 (2021) 12035

Keywords
Modelica

Dynamic analysis and technique

Energy system

Steam power generation

Heat pump

Combined cycle

Thermal Power
Generation

References:

・ Approach to Dynamic Analysis Based on Modelica for Thermal Power Plants,
Modelica Users' Conference 2019 Japan.
・ Dynamic Simulation of Steam Bottoming System in a Combined, IGTC2019 Cycle
Power Plant with Modelica
・ Development of a General-purpose Analytical Tool for Evaluating Dynamic
Characteristics of Thermal Energy Systems, Modelica Conference 201952

CRIEPI Technologies | Showcase for International Partners

Joint ResearchMechanisms ofradiation-induced
carcinogenesis at low dose-rate

Nuclear Power
Generation

We invite you to conduct joint research using ourworld-class Microbeam X-ray irradiation system,

References:

Long-term low dose rate irradiation facility, and・Fujimichi et al., Radiat Prot Dosimetry.
198(13-15):1115-1119 (2022)
・Fujimichi et al., J Radiat Res. 63(2):166-173 (2022)
・Fujimichi et al., Sci Rep. 9(1):20297 (2019)
・Hamada et al., Cancers (Basel). 14(14):3319 (2022)
・Hamada et al., Cancers (Basel). 13(21):5344 (2021)
・Hamada et al., Cancers (Basel). 12(10):3030 (2020)
・Otsuka and Tomita, Sci Rep. 8(1):17309 (2018)
・Otsuka et al., J Radiat Res. 59(suppl_2):ii18-ii22 (2018)
・Otsuka and Suzuki, Radiat Res. 186(3):302-14 (2016)
・Otsuka and Iwasaki, J Radiat Res. 56(4):615-22 (2015)
・Tomita et al., Radiat. Res. 179(2):200-207 (2013)
・Tomita et al., J Radiat Res. 53(3):482-488 (2012)
・URL of the OECD/NEA "Global Register of Low-Dose
Research Projects" database:https://www.oecd-nea.org/ldr/

other research equipment, as well as our own
genetically engineered mice, cultured cells, andarchived mouse tissue specimens.

Long-term low dose rateirradiation facility

Collaborate with us to produce original researchthat meets international standards and share theresults with the world.

Keywords
Low dose rate
Low dose
X-ray microbeam
Stem cell competition
Circulatory disease

Microbean X-ray
iiradiation system

CRIEPI Technologies | Showcase for International Partners

53

GET AHEAD OF THE COMPETITION WITH
IN-DEPTH ANALYSIS AND EXPERT INSIGHTS
Research Reports

An English version of the guide isprovided as an appendix on pages 71-152

GUIDE FOR

Qualitative Analysis in
The Human Reliability
Analysis (HRA) with
Emphasis on Narrativesof the Japanese version of the guide.
The guide (CRIEPI Research Report:
O20003) is available at:
CLICK HERE FOR MORE

(FY 2020 Edition)
To improve HRA in probabilistic risk assessment (PRA),
which deals quantitatively with the evaluation ofhuman response failures, we have developed a

Keywords

qualitative analysis method to collect and aggregate

The Human Reliability Analysis (HRA)

plant- and scenario-specific situations that affectQualitative Analysis

humans who perform accidental death response tasks
as "narrative knowledge." In addition, we havedeveloped an analytical model and analyticalknow-how for HRA of tasks under severe conditions.
As examples of evaluations using this method, we have

Narratives
Human Failure Event(HFE)
Accident Scenario Context
Probabilistic Risk Assessment (PRA)

presented feed-and-bleed operations and the openingof watertight doors when evacuating buildings during

Reference:a tsunami.

CRIEPI Research Report O20003(2021)
https://criepi.denken.or.jp/hokokusho/pb/
reportDetail?reportNoUkCode=O20003

54

CRIEPI Technologies | Showcase for International Partners

Research Facilities

We strive to solve your challenges with our various research facilities
and through joint-research operations with you.

Radiation-induced-mutation
analysis facility

Helical X-ray CT scanner

Thermal power water supply
treatment tester

High Reliability Test Facility for Lithium Ion
Batteries (Charge/Discharge Testing Facility)

CT image of a fault crush zone
using this facility

Molten metal droplet test facility "CANOPUS"

Supercomputer (HPE SGI8600)<Specification> 660 CPU nodes, 26,400
CPU cores, processing speed: 2.02 PFLOPS56

CRIEPI Technologies | Showcase for International Partners

Bending & Internal Pressure on real
structural samples (BIPress)

Fatigue testing machineTransmission Electron Microscope

Creep testing machine

3D Atom Probe Microscope

CRIEPI Technologies | Showcase for International Partners

57

Facts & Figures
Research Reports and Papers
Patents
Software
Personnel
Locations

FACTS & FIGURES

Research Reports and Papers

TOTAL

TOTAL

TOTAL

439

748

500

Academic Papers(Peer reviewed)

Papers presented
at academic
conferences

Research Reports(As of FY2021)

as of FY2021
CRIEPI Technologies | Showcase for International Partners

59

FACTS & FIGURESPatents

TOTAL: 737
HOLDINGS IN FY2021

10

3Emerging
Technologies

Nuclear Power
Generation

1

6

2

Emerging
Technologies

Electrification

Environment

Patentapplications

4

Electrification

56

20

Electric Power
Transmission andDistribution

60

CRIEPI Technologies | Showcase for International Partners

14

Patents
registered

Thermal Power
Generation

4

Renewable
Energy15

Electric Power
Transmission andDistribution

44

2

Renewable
Energy7

Nuclear Power
Generation

12

Thermal Power
Generation

FACTS & FIGURES

Software15

13

Nuclear Power
Generation

Emerging
Technologies

311

Socio-Economics

13

Environment

3Electrification

Thermal Power
Generation

TOTAL

118

2

Hydropower
Generation

developed in
FY2021

1

Renewable
Energy57

Electric Power
Transmission and Distribution
CRIEPI Technologies | Showcase for International Partners

61

FACTS & FIGURES

91

Personnel
Our research fields are
stretching out widely, thepublished papers have beenrecognized and awarded inmany conferences andassociations.

110

Administration

Electrical engineering

104

Research support& management

129

Personnel
Expertise andComposition,
as of 2021

40

Socioeconomics

Civil engineering

TOTAL: 787

38

95

Information &communications

Mechanicalengineering

52

Environmental
science49

Nuclearengineering

62

CRIEPI Technologies | Showcase for International Partners

30

Biology49

Chemicalengineering

FACTS & FIGURES

LocationsCRIEPI facilities are located in Tokyo andfour surrounding prefectures in the
Kanto region. These facilities consist offour research and business centers andtwo testing centers.

Shiobara Testing Yard
Akagi Testing Center

Abiko Area
Otemachi Head Office

Komae Area
Yokosuka Area

Otemachi Area

Yokosuka Area

Abiko Area

Komae Area

Akagi Testing Center

Shiobara Testing Yard

Internal Audit Office, Head
Office, Nuclear Risk
Research Center (NRRC),
Socio-Economic ResearchCenter (SERC)
1-6-1 Otemachi, Chiyoda-ku,
Tokyo 100-8126
TEL: +81-3-3201-6601

Energy Transformation ResearchLaboratory (EXRL), Grid Innovation
Research Laboratory (GdRL),
Yokosuka Operation & Service Center
2-6-1 Nagasaka, Yokosuka-shi,
Kanagawa 240-0196
TEL: +81-46-856-2121

Sustainable System ResearchLaboratory (SSRL),
Abiko Operation & Service Center
1646 Abiko, Abiko-shi, Chiba
270-1194
TEL: +81-4-7182-1181

Komae Operation & Service
Center
2-11-1 Iwadokita, Komae-shi,
Tokyo 201-8511
TEL: +81-3-3480-2111

2567 Naegashima-machi,
Maebashi-shi Gunma
371-0241
TEL: +81-27-283-2721

1033 Sekiya,
Nasushiobara-shi Tochigi
329-2801
TEL: +81-287-35-2048

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CONTACTS | Planning Group

Otemachi Bldg. 7F, 1-6-1 Otemachi,
Chiyoda-ku, Tokyo 100-8126, Japan+81-3-3201-6601+81-3-3212-0080
iapg-ml [@] criepi.denken.or.jp

For more information, please visit:https://criepi.denken.or.jp/en/index.html

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