Handbook of air conditioning and refrigeration / Shan K

14.26 CHAPTER FOURTEEN
Coefficient of Performance
REFERENCES
The coefficient of performance of an absorption heat transformer COP h,t can be calculated as
COP h, t �
(14.17)
where Q ev, Q g � waste heat input to evaporator and generator, Btu/h (kW). Mainly COP h, t is affected
by the amount of temperature boosting. The higher the temperature boosting, the lower the
COP h, t. Usually COP h, t varies between 0.4 and 0.5.
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Q ab
Q ev � Q g