Source:JASE-W Japanese Smart Energy Products & Technologies

https://www.jase-w.eccj.or.jp/technologies/index.html

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Keywords

Y4system or software

Z3,Z4

natural gas/electricity

S3,S4

E29
Azbil

Corporation

Chilled Water Plant District Cooling, Large Building,
FA Factory and Smart City Energy Center
CO2 reduction at heat source plant through optimized control (U-OPT™)
Featuresu Reduce CO2 emissions by optimizing the operation of District Cooling and heating heat source facility andSelf heating heat source facility for large Buildingsu Reduce CO2 emissions by optimizing the operation of Utility Plant for FA Factories
u Reduce CO2 emissions by optimizing smart city/energy supply center operations (cogeneration plant andheat source unit, etc.)
u Optimized operation of private power generation system during DR responseu Further CO2 reduction by operating with high-efficiency equipment (inverters, etc.)
u CO2 reduction effect of 3-6% due to operational optimizationu This solution is very effective CO2 reduction method with “short construction period” and “high investmenteffect”
u Solutions centered on data science, AI, optimization technology, and process simulation
Overview or Principles

OPT-MASTER

OPT-UPD

Heat source unit andcooling tower
Efficiency calculation

Demand forecasting and heat source unit optimization planning

OPT-CW

OPT-CHW

Cooling water system
online optimization

Data Base

Chilled water system
online optimization

DCS
Optimum water
Optimum watertemperaturetemperature
InverterInverter
Optimum
Optimum
speed
speed
Cooling Tower Fan

Supply Supply
flow rate temperature
Start and stop
commands

Optimum
Optimum coldwater
temperature water flow rate
Inverter
Optimum
speed

Optimum cold water
discharge pressure
Inverter

Optimum
speedSupplytemperature,pressure,
Flow rate
Chilled Water
ReturnCooling Water
Pump

ElectricalCentrifugal
ChillerPrimary Pump

Chilled Water
SupplyCooling Water
Pump

ElectricalCentrifugal
ChillerPrimary Pump
Secondary Pumps

This solution U-OPT provides optimized “On Line Control” and “Guidance” for Utility Plant (Cooling towers,
Various Type of Chillers, Pumps and Co-generation System, etc.) and then achieves CO2 reduction.
This solution is Windows application and Various control systems (DCS, PLC system, etc.) can be easily
connected with this solution through OPC (OLE for Process Control).
It consists of the following four modules, and it is also possible to introduce each module.
1) OPT-MASTER (Demand Prediction and Optimization for Chiller and Thermal Storage Tank Scheduling.)=> Saving coming from Chiller selection and thermal Storage Tank usage up to 24 hours in advance.
2) OPT-CHW (online optimization, optimization of Chilled Water System, calculate best Leaving Temperatureand Chilled Water Flow Rate ) => Saving coming from Chiller and Chilled Water Pump
3) OPT-CW (online optimization, optimization of Cooling Water System, calculate best CT Numbers and Fan
Speed and Condense Water Flow Rate) => Saving coming from Chiller and Cooling tower system4) OPT-UPD (update equipment efficiency for each module.) =>This function keeps each module accurate.
This solution includes “AI technology” for demand forecasting, “Data Analysis technology” for equipment
efficiency, “Mixed integer programming” for multi-period optimization, and “Simulation Technology” basedon thermodynamics such as vapor-liquid equilibrium for Cooling tower System.
When introducing this solution to an existing control system (DCS, SCADA, PLC system), this system canbe easily connected through OPC and realize Automated Optimal Operation with existing control system.

Energy saving effects & special notesu This solution maximizes overall energy efficiency and reduces energy usage by adjusting the operationof individual equipmentu For this Operation Optimization, no need to upgrade or replace existing facility including control system.
Therefore, compared to the energy-saving approach by replacing equipment, this has the characteristicsof 1) shorter project period, 2) less investment, and 3) higher cost-effectiveness.
u In general, factory and building facilities are designed for maximum demand, so when operating withintermediate demand, adjustments to meet demand fluctuations are required. At this time, if the energy
supply side consists of multiple facilities, there is room for more efficient energy use by distributing theload based on the difference in energy efficiency.
u Benchmarks for CO2 reduction, cost reduction and energy reduction are 3 to 6%.
u Received Singapore Apex Corporate Sustainability Award 2021 from Global Compact NetworkSingapore.
u At the COP26 Japan Pavilion, RENKEI CONTROL was introduced as a Japanese low-carbon
technology
EXHIBITION - Green innovation to contribute to energy transition in the Asian region with JCM andCEFIA | COP26 JAPAN PAVILION - Ministry of the Environment (env.go.jp)

Installation in Practice or Schedule
DomesticDistrict Cooling and Heating Plant and Airport (10 locations)
Chilled Water Plant for FA Factory (8 locations)
Optimized operation of cogeneration facility by energy management projects(3 locations)Tokyo Rinkai Heat Supply Corporation: Delivery case examples in industrial field | Azbil
Corporation (formerly Yamatake Corporation) (azbil.com)
Ikebukuro District Heating and Cooling Co., Ltd: Delivery case examples in industrial field |Azbil Corporation (formerly Yamatake Corporation) (azbil.com)
Narita International Airport Central Heating and Cooling Plant: Delivery case examples
in building field | Azbil Corporation (formerly Yamatake Corporation) (azbil.com)
Toyota Motor Corporation Tahara plant: Delivery case examples in industrial field | Azbil
Corporation (formerly Yamatake Corporation) (azbil.com)

Overseas

District Cooling Plant in Singapore (3 locations)
Energy Supply enter for Smart City in Thailand (One location (under construction))
Chilled Water Plant for FA Factory in Korea (One location)
Keppel DHCS Pte Ltd: Delivery case examples in industrial field | Azbil Corporation(formerly Yamatake Corporation) (azbil.com)

Contact:

Azbil Corporation
Building System Company, Global Sales Headquarters
TEL: +81-3-6205-7017
URL: https://www.azbil.com/

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