Internal energy flow analysis within a single effect sorption heat pump

The knowledge of the characteristics of unused, excess and untapped exergy allows a thorough analysis of internal energy hows distribution within a so rption heat pump. It can be applied to any system based on gas-liquid absor ption, adsorption or solid-gas reaction as well as to any process based on the internal recycling of the energy flux. It can also be applied for the c ase of a simple effect ideal machine, in particular in the definition of pr ocesses where the COP is larger than 2: the levels at which the initial exe rgy is downgraded on the one hand, as well as, the upgraded excess exergy p roduced on the other allows the designer to make a judicious choice of a sy stem. (C) 2001 Elsevier Science Ltd and IIR. All rights reserved.