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Experimental study of a gas engine-driven heat pump system for space heating and cooling

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Zhang, W, Yang, X, Wang, T, Peng, X and Wang, X ORCID: 0000-0003-4293-7523 2019 , 'Experimental study of a gas engine-driven heat pump system for space heating and cooling' , Civil Engineering Journal, vol. 5, no. 10 , pp. 2282-2295 , doi: 10.28991/cej-2019-03091411.

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Abstract

In this paper, the performance of a gas engine-driven heat pump (GEHP) was experimentally studied for space heating andcooling. An experimental test facility was developed for this purpose. The effect of key parameters on system performancewas investigated under both cooling and heating modes. The results showed that as the engine speed increased from 1400to 2000 rpm, the cooling and heating capacities increased by 23% and 28.5%, respectively while the GEHP system PrimaryEnergy Ratio (PER) decreased by 13.5% and 11.7% in the cooling and heating modes, respectively. The system PER inthe cooling mode was found lower than that in the heating mode. This indicated that heat recovery from the engine cylinderand exhaust gas was very important for improving the GEHP system performance. In the heating mode, the ambienttemperature and condenser water flow rate had a large effect on the system heating capacity and PER, and insignificanteffect on the gas energy input. In the cooling mode, the chilled water inlet temperature showed a large effect on bothcooling capacity and gas energy input while the chilled water flow rate had a large effect on cooling capacity andinsignificant effect on the gas energy input.

Item Type: Article
Authors/Creators:Zhang, W and Yang, X and Wang, T and Peng, X and Wang, X
Keywords: gas engine-driven heat pump, space cooling, space heating, PER, heat recovery
Journal or Publication Title: Civil Engineering Journal
Publisher: Salehan Institute of Higher Education
ISSN: 2676-6957
DOI / ID Number: 10.28991/cej-2019-03091411
Copyright Information:

Copyright 2019 The Authors. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/

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