Performance evaluation of a generator-absorber heat-exchange heat pump

CFD Analysis of Temperature Field in Pellet Stove as a Generator of an Absorption Heat Pump

“…Fig. 4 Garimela et al [5] studied gas-fired generator-absorber heat Exchange (GAX) in the AHP cycle for cooling and heating modes for different outdoor air temperatures. The achieved heating COP at a proportionally low ambient temperature of 5°C was 1.4.…”

“…The achieved heating COP at a proportionally low ambient temperature of 5°C was 1.4. For a further decrease in the ambient temperature, the acquired COP can be found in [5]. Philips [7] constructed a gas-fired absorption heat pump for middle-size energy systems.…”

Heat transfer studies on a GAXAC (generator-absorber-exchange absorption compression) cooler

“…Garimella et al [11] studied the performance of a GAX heat pump for both cooling and heating modes using the OSU-ABSIM simulation program. It was shown that for a given capacity, the gas input based COP can be maximized based on the UA variation of heat exchanging components of the cycle.…”

“…In an absorption cycle, increases in UA of different heat exchangers affect the system COP and capacity. Thus, a judicious choice of a set of heat exchangers for an absorption system requires that the system performance be investigated for different combinations of heat exchanger sizes [11]. It is also necessary to analyze the GAXAC system by varying the values of hot fluid, cooling and chilled water flow rates for maximizing the performance.…”

Implementation of an object-oriented dynamic modeling library for absorption refrigeration systems

“…Steady state models have been designed to support conceptual and preliminary design of the chiller [1][2][3][4][5]. In particular, Grossman and ZaltashÕs ABSIM [5] is a simulation platform containing models of many different cycle configurations.…”