Explanation of JCM Feasibility Study in Thailand&

Applicable Low CO2 Emission Technology

The Seminar on Low Carbon TechnologiesAt the Regional Environmental Centre for Central an d Eastern Europe (REC)

July 6-7 2015, Szentendre, The REC Conference Center

Senior Principal Engineer Air Conditioning & Refrigeration Division Sales Dep artment Machinery, Equipment & Infrastructure

Noriyasu Maehara Ph.D , PE

7th June 2015

We are working for the District Cooling and Heatin g Plant Engineering using Centrifugal Chiller and Heat Pump.

BEMSBEMSBEMSBEMS

BEMSBEMSBEMSBEMSBEMSBEMSBEMSBEMS

No.2 DHC Plant

No.1 DHC Plant

Centrifugal Chiller To generate chilled water

(4℃℃℃℃-7℃℃℃℃) for cooling

Centrifugal Chiller To generate hot water (40℃℃℃℃-50℃℃℃℃) for heating

DHC PlantChilled water and hot water supply for Air Conditioning

Introduction of District Cooling Plant EngineeringIntroduction of District Cooling Plant EngineeringIntroduction of District Cooling Plant EngineeringIntroduction of District Cooling Plant Engineering

Marina Bay District Cooling Plant in SingaporeMarina Bay District Cooling Plant in SingaporeMarina Bay District Cooling Plant in SingaporeMarina Bay District Cooling Plant in Singapore

No.1 Plant AreaNo.2 Plant Area ( Marina Bay Sands )

Image of No.1 Plant

Centrifugal Chiller & Heat Pump

JCM JCM JCM JCM Feasibility Feasibility Feasibility Feasibility Study for DCS Plant and Cogeneration plantStudy for DCS Plant and Cogeneration plantStudy for DCS Plant and Cogeneration plantStudy for DCS Plant and Cogeneration plant

In ThailandIn ThailandIn ThailandIn Thailand

SPP Power Generation in ThailandSPP Power Generation in ThailandSPP Power Generation in ThailandSPP Power Generation in Thailand

Thai International Airport DCS (District Cooling System) Plant is operated under SPP business license.

SPP (Small Power Produce) power generation (110MW) business developed in Thailand.

Gas Turbine

SPP Power Plant in Thailand

SPP Business in Thai landSPP Business in Thai landSPP Business in Thai landSPP Business in Thai land

Bangkok

Industrial Park Location in Thailand

SPPBusiness

90 MW power sales to EGAT

Power sales to Industrial Park

Steam sales

Chilled water sales

SPP Program : Started in1992 SPP Plant : 25 LocationExisting SPP power generation capacity : 2,908MW

(Power Supply To EGAT 1,800 MW)

EGAT : Electricity Generating Authority Thailand

Mechanism of Gas Turbine Inlet Air Cooling System

Gas Turbine Power Output will be determined by Inlet Air Temperature.

Power Output Increase

By Gas Turbine Characteristic

Gas Turbine Power Output Characteristic (FT-8)

20000

22000

24000

26000

28000

0 10 20 30 40

Inlet Air Temperature ( ℃℃℃℃)

Pow

er O

utpu

t (kW

)

Power Output (kW)

Operating Point of Without Inlet Air Cooling

Operating Point of Gas Turbine Inlet Air Cooling

Temperature Decrease

Pow

er In

crea

seGas Turbine Inlet Air System

Cool down inlet air temperature by chiller

If inlet air temperature rise ,Gas Turbine Power Output will decrease

CO2 Emission of Power Generation in Thailand

Current CO2 Emission Factor in Thailand : 0.5994kg /kWh EGAT Planning : Increase Coal Fired Power Plant

Production down of Natural Gasin Gulf of Thailand

Natural Gas Field

Increasing depending on Myanmar

Coal Fired PlantIncrease

CO2 Emission Increase

Electricity Emission factor in Thailand

Target of CO2 reduction in Gas Turbine Co-generatio n System

• Increase of Gas Turbine power generation by inlet a ir cooling

7℃Chilled water

By Cooling Inter Air

� Total Power Output Increase� Gas Turbine Efficiency Improve

15℃

34,000kW

40,500kW

6500kW/GT Power Output Increase UP(40,500kW – 34,000kW)

15℃℃℃℃ 35℃℃℃℃ Ambient Temperature15℃℃℃℃ 35℃℃℃℃ Ambient Temperature

9,500kJ/kWh

9,050kJ/kWh

Gas Turbine Efficiency 4.5% Increase

Climate Condition and Gas Turbine Output

The climate condition in Thailand is high temperature and performance and power generation of Gas Turbine combined cycle power plant are affected by the climate.

Yearly ambient temperature and humidityGas Turbine power generation

Gas turbine in Thailand can not achieve the rated output by high temperature.

Effectiveness of CO2 Reduction for Gas Turbine inle t air cooling

System CO2 ReductionGT x 2 + ST x 1Combined Cycle 39,922 ton-CO2/ Year

SPP Class Gas Turbine

250MW Class IPP class Gas Turbine Case

System CO2 ReductionGT x 2 + ST x 1Combined Cycle 130,500 ton-CO2/ Year

How to Install Air Cooler

Side View

Air Cooler

Air Filter Unit

For Gas Turbine

Gas Turbine

Air Cooler

Chiller Module Inlet Air Coil

Gas Turbine

Low Carbon Emission TechnologyLow Carbon Emission TechnologyLow Carbon Emission TechnologyLow Carbon Emission Technology

Used in Building System Used in Building System Used in Building System Used in Building System

What activity to emission CO 2 ?

� 22% of CO2 Emission is generated in private house and commerci al building. � Equipment for air conditioning emit the 44% of CO2 on building.

CO2 emission break downIn Japan

CO2 emission break downIn Building

Energy conservation technology for air conditioning is important

Cogeneration System

Centralized Power system

Electric Power Plant

Distribution Loss 4%

Distributed Electric Power 40%

Grid

Thermal Efficiency 44%

Total Efficiency 40%

Fuel Energy 100%

Gas TankPipe Line

Co-generation System

Total Efficiency 76-85%Distributed Power system(Co-generation system)

RecoveredHeat Energy 34%

Fuel Energy 100% Electric Efficiency 42%

District Cooling Plant combined with Cogeneration S ystem

Energy Station

Electric Power

Hot Water

Chilled WaterCommunicationnetwork

District Cooling Plant combined with Cogeneration S ystem

The electricity CO2 emission assumption 0.60Co2-kg/kWhThe natural gas CO2 emission assumption 2.702kg-Co2/m3

River Water Energy Use Heat Pump System

Cooling operationin summer

Heating operation in winter

BEMSBEMSBEMSBEMS6℃℃℃℃ ～～～～ 8℃℃℃℃

4℃℃℃℃ ～～～～ 6℃℃℃℃ Heat Pump

50℃℃℃℃

40℃℃℃℃

River

DCS Plant in Osaka

River has large amount of energy for heating

CO2 emission can be deduced in 40-50%compared with boiler.

Hot water (40 ℃℃℃℃-50℃℃℃℃)supply for heating in Winter

Energy Recovery from Sewage Treatment System

Sewage Treatment Plant

Sewage flow in

Sewage Treated waterTemperature is 10 ℃℃℃℃-15℃℃℃℃

Even in Winter

River

BEMSBEMSBEMSBEMS

Heat Pump

Sewage water correct exhaust energy of city and temperature in winter is around 15degC even in ambient temperature around -10 ℃℃℃℃

Hot water (40 ℃℃℃℃-50℃℃℃℃)supply for heating in Winter

Sewage treated water is low temperature in Summer Compared with

Cooling Water of Cooling Tower

CO2 Heat Pump System

Heat Pump Unit

65-90℃℃℃℃

Water inlet

Pump

sanitary

mixing valve65-90℃℃℃℃

Hot Water TankWater

Boiler Case

90℃℃℃℃

CO2 Emission

100

Boiler

CO2 Emission

42

Fuel

Fuel

Electricity

Air -25℃℃℃℃-40℃℃℃℃

Air -25℃℃℃℃-40℃℃℃℃

Heat pump Case

90℃℃℃℃Hot WaterSupply

Hot WaterSupply