한국지열·수열에너지학회논문집 (Journal of the Korean Society for Geothermal and Hydrothermal Energy)

  • 제12권2호
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  • Pages.1-6
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  • 2016
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  • 2799-4783(pISSN)
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  • 2799-4805(eISSN)
한국지열·수열에너지학회 (Korean Society for Geothermal and Hydrothermal Energy)
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공기열원 히트펌프를 위한 공기식 지중 열교환기(GAHX) 설계 및 분석 연구

Ground Air Heat Exchanger Design and Analysis for Air Source Heat Pump

  • 이광섭 (과학기술연합대학원대학교 재생에너지공학과) ;
  • 류남진 ((주)탑솔 기술연구소) ;
  • 강은철 (한국에너지기술연구원 에너지효율연구본부) ;
  • 이의준 (한국에너지기술연구원 에너지효율연구본부)
  • Lee, Kwang-Seob (Department of Renewable Energy Engineering, University of Science and Technology) ;
  • Lyu, Nam-Jin (Technical Research Center, Tapsol) ;
  • Kang, Eun-Chul (Energy Efficiency Research Division, Korea Institute of Energy Research) ;
  • Lee, Euy-Joon (Energy Efficiency Research Division, Korea Institute of Energy Research)
  • 투고 : 2016.02.22
  • 심사 : 2016.05.06
  • 발행 : 2016.06.01
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초록

A ground air heat exchanger (GAHX), also called earth air heat exchanger is a useful technology to be integrated with other renewable energy technologies. In this study, ground-air heat exchanger system for the air source heat pump is introduced. The purpose of this study is to design the volumetric flow rate and the length of GAHX system. A GAHX length model equation has been developed and used for calculation. GAHX thermal efficiency are recommended as 75% and 85% in order to optimize pipe length. $2,750m^3/h$, $2,420m^3/h$ of volumetric flow rate on 88.3m, 111.7m length are suggested for providing 7.5kW thermal capacity. And the number of path is recommended more than two to minimize pressure drop. For future study, advanced model equation study with ground thermal behavior and a more efficient GAHX design will be considered.

키워드

참고문헌

  1. Rehau Ecoair Ground-Air Heat Exchange System, www.rehau.com.
  2. Kang, E. C., Lee, E. J., and Min, K. C., 2014, Two way set temperature control impact study on ground coupled heat pump system energy saving, Korea Society of Geothermal Energy Engineerings, Vol. 10, pp. 7-12.
  3. Muehleisen, R. T., 2012, Simple design tools for earthair heat exchangers, In Fifth National Conference of IBPSA-USA, SimBuild, pp. 723.
  4. Hollmuller, P. and Lachal, B. M., TRNSYS compatible moist air hypocaust model, Final report, Centre universitaire d'etudes des problemes de l'energie, Geneve.
  5. Lee, K. H. and Strand, R. K., 2008, The cooling and heating potential of an earth tube system in buildings, Energy and Buildings, Vol. 40, pp. 486-494. https://doi.org/10.1016/j.enbuild.2007.04.003
  6. Vlad, G. E. C., Necula, H., and Badea, A., 2011, Thermoeconomic design of an earth to air heat exchanger used to preheat ventilation air in low energy buildings, International Conference on Energy, Environment, Entrepreneurship, Innovation, Lanzarote, Spania, pp. 11-16.
  7. De Paepe, M. and Janssens, A., 2003, Thermal-hydraulic design of earth-air heat exchangers, Energy and Buildings, Vol. 35, pp. 389-397. https://doi.org/10.1016/S0378-7788(02)00113-5

피인용 문헌

  1. Model Verification and Justification Study of Spirally Corrugated Pipes in a Ground-Air Heat Exchanger Application vol.12, pp.21, 2019, https://doi.org/10.3390/en12214047