Effect of heat transfer law on the performance of a generalized irreversible carnot refrigerator

The sole irreversibility considered in an endoreversible Carnot refrigerato r model is the loss of heat resistance between the refrigerator and its sur rounding heat reservoirs. This paper presents a generalized irreversible Ca rnot refrigerator model by taking into account several additional internal irreversibilities of the refrigerator, such as heat leakage, friction, turb ulence and other undesirable factors. This is done by means of a constant p arameter and a constant coefficient, together with the loss of heat resista nce. The relation between optimal cooling load and coefficient of performan ce (COP) is derived based on a generalized heat transfer law Q proportional to Delta (T-n). The effect of heat leakage, internal irreversibility, and heat transfer law on the optimal performance of the generalized irreversibl e Carnot refrigerator is investigated.