설비공학논문집 (Korean Journal of Air-Conditioning and Refrigeration Engineering)

  • 제26권9호
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  • Pages.409-415
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  • 2014
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  • 1229-6422(pISSN)
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  • 2465-7611(eISSN)
대한설비공학회 (The Society of Air-Conditioning and Refrigerating Engineers of Korea)
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업무용 건물의 지열 히트펌프 시스템에 대한 성능 예측

Performance Prediction on the Application of a Ground-Source Heat Pump(GSHP) System in an Office Building

  • 손병후 (한국건설기술연구원 그린빌딩연구실) ;
  • 권한솔 (한국건설기술연구원 그린빌딩연구실)
  • Sohn, Byonghu (Green Building Research Division, Korea Institute of Construction Technology) ;
  • Kwon, Han Sol (Green Building Research Division, Korea Institute of Construction Technology)
  • 투고 : 2014.05.30
  • 심사 : 2014.07.04
  • 발행 : 2014.09.10
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초록

Ground-source heat pump (GSHP) systems have become an efficient alternative to conventional cooling and heating methods due to their higher energy efficiency. These systems use the ground as a heat source and the heat sink for cooling mode operation. The purpose of this simulation study is to evaluate the performance of a hypothetical GSHP system in an office building and to assess the energy saving effect against the existing HVAC systems (boiler and turbo chiller). We collected monthly energy consumption data from an actual office building ($32,488m^2$) in Seoul, and created a model to calculate the hourly building loads with EnergyPlus. In addition, we used GLD (Ground Loop Design) V8.0, a GSHP system design and simulation software tool, to evaluate hourly and monthly performance of the GSHP system. The energy consumption for the GSHP system based on the hourly simulation results were estimated to be 582.6 MWh/year for cooling and 593.2 MWh/year for heating, while those for the existing HVAC systems were found to be 674.5 MWh/year and 2,496.4 MWh/year, respectively. The seasonal performance factor (SPF) of the GSHP system was also calculated to be in the range of 3.37~4.28.

키워드

참고문헌

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피인용 문헌

  1. Recent Progress in Air-Conditioning and Refrigeration Research: A Review of Papers Published in the Korean Journal of Air-Conditioning and Refrigeration Engineering in 2014 vol.27, pp.7, 2015, https://doi.org/10.6110/KJACR.2015.27.7.380
  2. A Study on the Efficiency Improvement of Multi-Geothermal Heat Pump Systems in Korea Using Coefficient of Performance vol.9, pp.5, 2016, https://doi.org/10.3390/en9050356
  3. Development of a Variable Water Flow Rate Control Method for the Circulation Pump in a Geothermal Heat Pump System vol.11, pp.4, 2018, https://doi.org/10.3390/en11040718
  4. Sensitivity Analysis of the Design Factor for Vertical Closed-loop Geothermal System using Numerical Analysis : Focused on Heating Operation vol.18, pp.5, 2018, https://doi.org/10.12813/kieae.2018.18.5.055