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http://dx.doi.org/10.17664/ksghe.2022.18.3.0019

Comparative Analysis of Energy Performance of Hydrothermal, Geothermal Source and Hybrid Heat Pump System According to Internal Heat Load for Office, School and Smart Farm  

Park, Sihun (Department of Mechanical Engineering, KyungHee University)
Min, Joonki (Department of Mechanical Engineering, KyungHee University)
Publication Information
Journal of the Korean Society for Geothermal and Hydrothermal Energy / v.18, no.3, 2022 , pp. 19-30 More about this Journal
Abstract
In this study, comparative analysis of energy performance in Taebaek city, a test area, by applying hydrothermal, geothermal source and hybrid heat pump system to office, school and smart farms with different internal heat loads. The conclusion is as follows. In the load characteristics by use of buildings, it was found that office had a large cooling load compared to heating load, school had a large heating load compared to cooling load, and smart farm had only cooling load year-round. Performance analysis of the heat pump system in office shows that the cooling COP of the hydrothermal source is 5.12% and the heating COP is 3.22% lower based on the geothermal source, the cooling COP of the hybrid is 0.41% higher, and the heating COP is the difference in performance appeared sparsely. The performance analysis of the heat pump system in school showed that the cooling COP of the hydrothermal source was 10.44% and the heating COP 3.22% lower based on the geothermal source, and the performance difference between the hybrid cooling and heating COP was insignificant. Heat pump system performance analysis in smart farm only occurred with cooling load. Based on geothermal sources, the cooling COP of the hydrothermal source was 46% and the cooling COP of the hybrid was 19.65%, respectively.
Keywords
Geothermal heat pump; Hydrothermal heat pump; Hybrid heat pump; Office; School; Smart Farm;
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Times Cited By KSCI : 2  (Citation Analysis)
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