Source:JASE-W Japanese Smart Energy Products & Technologies

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

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Keywords

Y2deviceZ3

natural gas

S3/4

ZEB/BEMS/FEMS

E25

general-purpose machinery

KAWASAKI HEAVY INDUSTRIES, LTD.

Triple Effect Absorption Chiller-heater
Features Heat Source Equipment for Air Conditioning
 Freon Free:
Absorption chiller-heaters contain “water” asrefrigerant and Freon gas which has high global
warming potential is not used.
 Low Electricity Consumption:
Absorption chiller-heaters provide chilled water bymeans of natural gas combustion, which contributes tosignificant reduction of electricity consumption.
 The world’s First Triple Effect Absorption
Chiller-heater:
In 1968, we commercialized the world’s first double
effect direct fired absorption chiller-heaters.
In 2005, we commercialized the world’s first triple
effect direct fired absorption chiller-heaters.
Natural gas consumption is further reduced byupgrading from double effect type to triple effect type.
 The highest COP in the world
1.6 (Higher Heating Value basis)
1.7 (Lower Heating Value basis)
 Application for gas engine co-generation system is also available.
Basic Concept or Summary
Construction of the triple effect absorption chiller-heater (Image)Base machine:
Double Effect Steam
Absorption ChillerLowtemperature
generator

Mediumtemperature
generatorHightemperature
generator

New Once-throughTypeHigh Temperature
Generator

 The triple effect absorption chiller-heaters have three generators and lithium bromide solution is generated
in three steps.
 The triple effect absorption chiller-heaters have been developed by combination of a double effect steam
fired absorption chiller as a base machine and a once-through boiler as a new high temperature generator.

Effects or Remarks

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Grand Reduction in CO2 Emission

Maximum Efficiency COP1.7

For example, in the case of cooling capacity
651 kW (185 RT), annual CO2 emission can be
reduced by approximately 140 tons comparedwith conventional types.

Being equipped with the new solution circulation
inverter control (the patent is being applied for) asa standard function, the maximum efficiency
COP1.7 is achieved in the partial load area wherethe system is most frequently used.

Reduction
approximately 140
ton-CO2/yearConventional
type 405
Triple effecttype 264

Double effectconventional type
26% energy conservation

Triple effect type
53% energy conservation

Annual cooling hours: 5,000 Hr, average load rate: 75%
Annual heating hours: 1,000 Hr, average load rate: 40%

Cooling load rate (%)

 The energy consumption is lower by 38% compared with double effect type (COP = 1.0) which iscommonly operated now.
 The COP in the partial load area can be improved by the optimum inverter
control for solution pumps.
 Total motor output is only “6.5 kW in the case of 185 RT”.
 Awards receivedFebruary 2006: The Japan Institute of Energy
Progress Prize (Technology Division)
June 2006:
The 8th Electric Load Leveling Equipment, SystemAward
The Heat Pump & Thermal Storage Technology Centerof Japan, Chairman Prize
January 2007: The 17th Energy Conservation Grand Prize
The Energy Conservation Center, Japan, Chairman
Prize
June 2008:
The Japan Gas Association
Technology Prize of FY2008

FY2008Energy Conservation
Grand Prize
The Energy Conservation Center,Japan, Chairman Prize
Hosted by Ministry of Economy, Trade andIndustry

Installation in Practice or Schedule
Domestic

Delivered mainly to factories, hospitals, general buildings, etc.

OverseasBased on the deliveries in Japan, overseas sales activity is under way.

Contact:

Kawasaki Thermal Engineering, Overseas Project Department
Tel: +81-3-3645-8251 Fax: +81-3-3645-8233
URL: https://www.khi.co.jp/corp/kte/