Overseas version simulation software that contributes to theprevention of global warming.
・Patent 第4564594号
・U.S. Patent No. US 8,396,605 B2

Energy simulation Software

World Edition
Energy Simulation Software of EIE can reduce Carbon Dioxide (CO 2) emission
to air by optimizing energy efficiency.

Basic software for building smart energy networks

E.I. Engineering Co., Ltd.
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■ Released Enepro21World Edition
Enepro21 World Edition has added equipment of "Power storage system" and"Fuel cell cogeneration(for gas and hydrogen)" and is working to further
enhance the functionality of the solar power generation facility.
As a result, we have developed software that can simulate the optimal
operation of the entire system, including power generation equipment, heatsource facility, Soler power generation equipment, and Consumer (buildingside) power load, utilizing the power storage system.
■Enepro21world Edition power system

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■ Main business of E.I. Engineering(consulting and software licensing)
EIE provides consulting services and licenses the general purpose simulation software listed below.

Ｓｕｐｐｏｒｔｉｎｇ information/material
Enepro21 data baseMore than 8,000 device performance data, and operation videos for learning Enepro21WE

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■ Accomplishments in Japan since 2005
①EIE is currently licensing Enepro21 to the following customers.

Construction, Utility, Planning, Supplier and Universities are benefitingfrom result of Enepro21's analysis and obtained significant savings.
・ Nihon Sekkei.INC. * ・NIKKEN SEKKEI LTD・ Kanden Energy Solution Co., Inc. ・Mitubishi Jisho Sekkei Inc.
・International Petroleum Development Co., Ltd. *・ Tokyo Gas Co., Ltd. ・ Tokyo Gas Engineering Solutions Co., Ltd.,・Kyudenko * ・ Toho Gas Co., Ltd. * ・ OSAKA GAS CO.,Ltd. ・ Daigas energy ・ Tokyo Heat Supply
・ Mitsubishi Electric CO.,Ltd. (Advanced Technology R&D Center) ・ Takenaka Co., Ltd.
・Japan Enviroment Systems CO.,Ltd. ・Shinjuku Minami Energy Service (JR Tokai)
・ Yokohama National University * ・ Kogakuin University

・ Shibaura Institute of Technology ** Use multiple②Consulting experience
Power generation equipment①CCPP: 1,705,000kW②Gas turbine cogeneration: 441,400kW③ Gas engine cogeneration: 591,400kW
Energy saving and cost saving for district heating and cooling,
individual buildings, hospitals, hotels, factories, industrial parks, etc.
Consulting experience Refrigerated ton base: 681,200RT
4■ Features of Enepro21World Edition●Enepro21 is a general-purpose simulation software for heat source facility and can beusable all over the world.
・ The language of the software is written in English.
・The unit consists of SI units, which are international units common throughout the world.
・Solar power generation and solar heat simulations can be used in any country by setting the time difference
from Universal Time (UTC).

●To meet the complex utility costs around the world, the “Detailed Utility Consumption List”
outputs 365 days of hourly utility consumption in Excel format.
You can freely calculate the cost and environmental load.

●Enepro21 can be used to design and analyze various centralized energy facilities such as
power generation facilities (CCPP, GT, GE, fuel cells, storage batteries), renewable energy(solar energy, solar heat utilization).
● Enepro21 can reproduce the actual operation results of the existing facility within error
rang of 1to 2 % per year.
（Accurately reproduce the operating state by making full use of convergence calculation to balance thepower, heat and flow rate)5■ Standard model flow of Enepro21World Edition

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■Calculation mechanism of Enepro21World Edition

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■ Relationship between building air-conditioning system andheat source system (HVAC)●The control results of temperature, humidity and outside air ventilation
Building air conditioning systemby the air conditioning system in the building side are summarized
in the required energy amount on the building side and the temperature
difference of the heat medium.
●After all, under the condition of the linked temperature difference
between inlet and outlet of the heat medium, the requirement ofenergy for the building must be sent by the heat medium to thebuilding side from the heat source as to be less cost and CO2
minimum.
●Thus, "building side air conditioning system" and "heat source
system" can be designed and analyzed separately under
the conditions of the heat medium.
●「EnergyPlus」 software which is used worldwide is recommended
for the calculation of the building side for heat load calculation.
On the other hand, the energy consumption and carbon dioxide(CO2) production of the heat source system are greatly affected bymany factors such as the temperature of the cooling water in thecooling tower, the control method of the pump, the supply
temperature of the heat medium and the temperature difference ofthe heat medium. Enepro21 World Edition, a general-purpose
simulation software, has been successfully used in Japan and is thebest simulation software for designing and analyzing heat source
facility.

Heat source system

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■ Consulting procedure by Enepro21World Edition●Accurately reproduce the annual operation status of existing facility (error range of 1to2%)●Enepro21World Edition allows you to accurately calculate and compare operating costs andcarbon dioxide (CO2) emissions when considering how to operate an existing facility or renew
an existing facility.

Step-1

Suggestion of the operation improvement plan by changing the operation conditions.
(due to changes in operational parameters)
・Calculate the effect of energy saving and cost reduction by changing the various operation
parameters, the priority order of operation of equipment and operation time period ofcogeneration unit
・Calculate the cost saving and CO2 reduction by changing the operation load and parameter of equipment

Analysis of equipment performance

Step-2

Select the optimum case from the comparison tableStudy of the countermeasures for energy/cost saving and Carbon Dioxide (CO2)
reduction by the small investment.
・Introduce the inverter pump, free cooling and pump with excess flow rate etc.

Step-3

Propose the energy/cost saving and Carbon Dioxide (CO2) reduction by adding
the equipment and/or optimizing the facility
・Employ the new equipment such as cogeneration + Genelink, heat accumulationequipment and reusable energy
・Propose the optimized renewal plan by considering the future load forecast and energy cost.

9■ Enepro21World Edition : License Overview

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■ Enepro21World Edition : Easy to use for engineers (1)● If you need to consider a newly proposed facility, load the case file for thesimilar previously considered facility. By replacing the information, load, andequipment of similar previously considered facility, you can easily and quickly
consider new proposed facility.
●Several engineers, proposing their ideas, can construct a system of the new
proposed facility together based on the common case file.
● Until the adopted equipment data is obtained, the simulation study can bedone in advance by downloading the similar equipment performance datafrom Enepeo21 data base.
●The hourly calculation is done instantly, and the annual calculation result canbe quickly calculated, so you can make various studies under different
conditions.

● Easily create report graphs and tables by exporting data to Excel.
● There is a help function for each open screen, and the calculation formulais also described, so you can easily understand the contents.
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■ Enepro21Word Edition： Easy to use for Engineers (2)● Many functions have been considered to prevent incorrect calculations, andif there is an input error, a warning display will be displayed and correction will
be performed reliably.
For example：
・There are times when equipment priority is not set.
・Enter the outlet temperature of the equipment
・The same device is set twice
・The temperature difference specification of the equipment is different. ・● Many convenient functions are prepared for engineer.
・Automatic input function of enthalpy value by setting pressure(MPaG)
・Automatic setting of pump capacity and pump efficiency based on head setting●If you set the operation priority of the equipment in the operation plan,
the balance calculation is performed with consideration of the flow rate andthe amount of heat to start only the number of equipment required.

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■ Enepro21World Edition： Detailed "help" display for each screen

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■ Ｅnepro21World Edition： Video learning function●Enriched learning function with operation videos with sample cases of Enepro21
The operation videos as listed below have been prepared for the users to use the simulation
function of Enepro21 effectively.
The users can learn by the videos over and over again at any time.

●From startup / load creation to calculation execution for those who use
Enepro21 for the first time

●Basics:16 thematic training videos①Program Configuration and Project File

②Example of Creating Thermoelectric Loads Basedon the Heat Load Basic Unit
③Example of Creating Thermoelectric Loads Based on the Measured Data（Excel）④Importing / Modifying / Enabling Thermoelectric Load Data
⑤ Basic Condition Setting⑥Creating System Configuration and Use of Equipment Performance Data Collection⑦Pump Power Calculation and Control Method Setting⑧Equipment Model Setting for a System with CGS⑨Equipment Model Setting for a System with Heat Storage⑩Operation Plan Setting and Convenient Functions⑪Calculation Execution and Output of the System with CGS⑫Calculation Execution and Output of the system withHeat Storage⑬Example of Comparative Study of Operating Methods of the Systems with CGS⑭Secondary Pump System Setting⑮Summary of Convenient Functions⑯Basic Concept of Chilled Water Balance●Advanced version：Video of simulation example incorporating Know-How of EIE①Settings of Solar Power Generation System②Settings of Solar Heat Utilization System③Settings of Tamdem Type Turbo Chiller④Settings of Free Cooling System⑤Trial Calculation of the Primary Energy Conversion Coefficient for Cold and Hot⑥Trial calculation of the Primary Energy Conversion Coefficient for Cold and Hot for the System Using CGS Exhaust Heat

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■ Automatic connection of device data related to the main equipment● Equipment data
The related equipment within the dotted line are automatically connected.
・Related pumps ( Chilled water pump, cooling water pump, heat storage
pump, hot water pump, etc.)
・Attached cooling tower ・Heat storage tank ・Heat exchanger

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■ Equipment performance data
(Data is automatically entered by downloading from the equipment database)Equipment performance data
①The equipment characteristics (COP) are created by a regression
equation by inputting the numerical values of four load factors at
the reference cooling water temperature and the reference chilledwater outlet temperature.

②Equipment characteristics are automatically corrected by cooling water temperature correction,
chilled water outlet temperature correction, cooling water flow rate correction, and aging correction.
(To accurately reproduce the actual operation)16

■ System construction procedure(with heat load connected)● The data of the download device can be read into the system flow,
multiple systems can be easily constructed according to the load.
Optimal solutions can be easily found by comparing systems.

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■ Example of reading the INV turbo chiller from the database into the system●Reading the chilled water dedicated inverter turbo chiller (1) andchilled water heat storage inverter turbo chiller (2)
INV1

INV2

INV1 is automatically connected to the power and chilled water header.
Similarly, INV2 is connected to electricity, a chilled water header, and a chilled water storage tank.

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■ Setting of simultaneous chilled and hot heat storage of inverter turbo chiller

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Engineeringfor Tomorrowwith Enepro21World Edition

E.I. Engineering Co., Ltd.
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