ADVANCED ABSORPTION CHILLERS PART 1

ADVANCED ABSORPTION CHILLERS

Summary

One of significant feature of absorption cooling technology is that various

thermal energies can be used for air-conditioning by the technology. The main types

of thermal energy are hot water, steam, and exhaust gas. In this document, Yazaki’s

advanced absorption chillers and systems are introduced for effective usages not

.only waste thermal energies but also renewable energies

 Utilization of Various Waste Thermal Energies 

By an onsite electrical generator and manufacturing process of factory

various types of thermal energy are discharged, such as hot water, steam, and

exhaust gas. Absorption chiller can use not only fossil fuel but also the waste

thermal energies for cooling. In combination with an electrical generator and an

absorption chiller, the combined system can improve overall efficiency rate by using

the waste thermal energy for cooling. For effective utilization of energy, Yazaki

provides absorption chillers for each type of thermal energy

For Utilization of Hot Water

Hot water Fired Chiller (WFC) is the first type of chiller forutilizing waste head

The WFC absorption cycle is energized by hot water and the lower side operational

temperature range of hot water is expanded to 70 degree C for effective utilizthe thermal energy

In general, if the hot water temperature is not enough to operate the WFC,

additional boiler is installed into the system to produce an increase in temperature.

WFC-SCB and WFC SHB series are the packaged type of auxiliary boiler. By

optimal control of auxiliary boiler and WFC, waste energy of hot water can be used

effectively

For Utilization of Steam

CH-KGST can use wasted steam for cooling. In the case of high-pressure

steam, the CH-KGST operates double effect cooling cycle. If the steam pressure

decreases, the CH-KGST cooling cycle switch to single effect cooling cycle. By the

cycle switching control, CH-KGST series can operate continuously under steam

pressure fluctuation from 98 kPa to 686 kPa and realizes effective use of lowpressure

     kandi younes