Optimum Performance of a Generalized Irreversible Carnot Heat Pump with a Generalized Heat Transfer Law
The sole irreversibility considered in an endoreversible Carnot heat pump model is the loss of heat resistance between the heat pump and its surrounding heat reservoirs. This paper presents a generalized irreversible Carnot heat pump model by taking into account several additional internal irreversibilities of the heat pump, such as heat leakage, friction, turbulence and other undesirable irreversibility factors. This is done by means of a constant parameter and a constant coefficient, together with the loss of heat resistance. The relation between optimal heating load and coefficient of performance (COP) is derived based on a generalized heat transfer law Q = K (∆T)m. The effect of heat leakage, internal irreversibility, and heat transfer law on the optimal performance of the generalized irreversible Carnot heat pump is investigated.