• Title/Summary/Keyword: 지열열교환기

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A Study on High Efficiency Geothermal Heat Pump System by Improving Flow of Heat Exchanger (열교환기의 흐름개선을 통한 고효율 지열 히트펌프 시스템에 관한 연구)

  • Ahn, Sung-Hwan;Choi, Jae-Sang;Kim, Sang-Bum;Ahn, Hyung-Hwan
    • Journal of the Korean Institute of Gas
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    • v.21 no.4
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    • pp.42-46
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    • 2017

  • As $CO_2$ emission with imprudent using fossil fuel, annual mean temperature of earth is increased in every year. Geothermal energy is inexhaustible energy resource to solve this problem. Heat pump performance and heat exchange efficiency of ground loop are important to distribute widely. Thus, this study are performed to increase heat pump performance and heat exchange efficiency of ground loop with dual expansion valves and spacer. As a results, COP of cooling & heating is obtained improvement up to 11.4% using dual expansion valves, and heat exchange efficiency is increased up to 17.5% using spacer. It will be reduced initial installation cost due to increasing heat pump performance and heat exchange efficiency of ground loop.

  • https://doi.org/10.7842/kigas.2017.21.4.42 인용 PDF KSCI