TRIPLE EFFECT TYPE ABSORPTION CHILLER HEATER WITH WASTE HEAT REGENERATOR

PROBLEM TO BE SOLVED: To reduce an adverse effect of a triple effect type absorption chiller heater on external heat source equipment and to increase efficiency by installing a waste heat collector on the chiller heater. SOLUTION: In this chiller heater, the waste heat collector 168 for increasing the concentration of absorbent by collecting waste heat from the outside and utilizing the heat as a heat source to heat the absorbent so as to heat and evaporate the refrigerant absorbed in the adsorbent is installed at the front of a low temperature regenerator 84. The ratio of heating heat amount for raising the concentration of the absorbent by heating the absorbent by the low temperature regenerator is reduced by controlling the waste heat amount collected from the outside and reduced by 15-100% when the cooling/heating load varies in the range of 100-0%. By reducing the heat-exchanged amount of the low temperature regenerator, if the absorbent generated by a high temperature regenerator and an intermediate temperature regenerator is heated/concentrated to reduce the produced amount of refrigerant vapor which becomes the heating source of the low temperature regenerator, waste heat collecting operation is possible according to a change in cooling/heating load. COPYRIGHT: (C)2005,JPO&NCIPI