FortePak - Products - Hitachi Absorption Chillers

<%@LANGUAGE="VBSCRIPT" CODEPAGE="1252"%> FortePak - Products - Hitachi Absorption Chillers

Power Generators

Mitsubishi MGS Series

Perkins Engines

Chillers

Hitachi Absorbtion Chillers

Hitachi Centrifugal Chillers

Cooling Towers

Kuken Cooling Tower

Insulation Tubes

ForteFlex

The Principle Function of an Absorption Chiller

The absorption chiller is a machine to produce chilled water by using heat such as steam, hot water, gas, oil.

Pure water is used as refrigerant and lithium bromide solution is used as absorbent.
Chilled water is produced by the principle that liquid, which evaporates easily, absorbs heat from surrounding when it evaporates.

The refrigerant (water) evaporate at around 4

C under the high vacuum condition of 754mmHg in the evaporator. When the refrigerant (water) evaporate, the latent heat of vaporization generate.
This latent heat of vaporization can cool the chilled water which runs into the heat exchanger tubes in the evaporator by transfer of heat to the refrigerant (water).

EVAPORATOR

In order to keep evaporating, the refrigerant vapor must be discharged from the evaporator and refrigerant (water) must be supplied. The refrigerant vapor is absorbed into lithium bromide solution which is convenient to absorb the refrigerant vapor in the absorber. The heat generated in the absorption process is led out of system by cooling water continually.

ABSORBER

As lithium bromide solution is diluted, the effect to absorb the refrigerant vapor reduces. In order to keep absorption process, the diluted solution must be made concentrated lithium bromide.
Absorption chiller is provided with the solution concentrating system by the heating media such as steam, hot water, gas, oil, which performs such function is called generator.
The concentrated solution flows into the absorber and absorbs the refrigerant vapor again.

HIGH PRESSURE GENERATOR

In order to above works continually and to make complete cycle, the following two functions are required.

1.To concentrate and liquefy the evaporated refrigerant vapor, which is generated in the high pressure generator.
2.To supply the condensed water to the evaporator as refrigerant (water).

CONDENSER

How an absorption chiller works