TY - JFULL AU - Young-Jin Baik and Minsung Kim and Young-Soo Lee and Ki-Chang Chang and Seong-Ryong Park PY - 2012/11/ TI - Computational Evaluation of a C-A Heat Pump T2 - International Journal of Environmental and Ecological Engineering SP - 652 EP - 656 VL - 6 SN - 1307-6892 UR - https://publications.waset.org/pdf/8702 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 70, 2012 N2 - The compression-absorption heat pump (C-A HP), one of the promising heat recovery equipments that make process hot water using low temperature heat of wastewater, was evaluated by computer simulation. A simulation program was developed based on the continuity and the first and second laws of thermodynamics. Both the absorber and desorber were modeled using UA-LMTD method. In order to prevent an unfeasible temperature profile and to reduce calculation errors from the curved temperature profile of a mixture, heat loads were divided into lots of segments. A single-stage compressor was considered. A compressor cooling load was also taken into account. An isentropic efficiency was computed from the map data. Simulation conditions were given based on the system consisting of ordinarily designed components. The simulation results show that most of the total entropy generation occurs during the compression and cooling process, thus suggesting the possibility that system performance can be enhanced if a rectifier is introduced. ER -