Journal of the Korean Solar Energy Society (한국태양에너지학회 논문집)

The Korean Solar Energy Society (한국태양에너지학회)
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A Study on the Performance Evaluation of Heat Pump System Using Waste Heat in Greenhouse

시설하우스의 폐열을 이용한 열펌프시스템의 성능평가에 관한 연구

  • Jo, Kihyun (Department of Mechanical Engineering, Graduate School of Jeju National University.) ;
  • Park, Youn Cheol (Department of Mechanical Engineering, Jeju National University) ;
  • Ko, Gwang-Soo (Department of Mechanical Engineering, Graduate School of Jeju National University.)
  • 조기현 (제주대학교 대학원 기계공학과) ;
  • 박윤철 (제주대학교 기계공학과) ;
  • 고광수 (제주대학교 대학원 기계공학과)
  • Received : 2015.07.01
  • Accepted : 2015.08.24
  • Published : 2015.08.30
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Abstract

This study was conducted to develop a heat pump system to utilize waste heat within the greenhouse during the daytime in winter season. The system runs at 8 am to 6 pm for the heat storage operation, and from 6 pm to 8 am of the next day for the heat radiant work. In the case of the heat storage operation, the average solar radiation was $168.3W/m^2$ with $16.3^{\circ}C$ outside temperature. The $COP_s$ of the system shows 4.59 in this operation mode. When the temperature goes up to $18.6^{\circ}C$, the system $COP_s$ reached at 5.10. On the other hand, the $COP_h$ of the system in heat radiation mode shows 2.63. In this case, the inside of the greenhouse temperature was reaches at $24.7^{\circ}C$ when the outside temperature was $12.9^{\circ}C$.

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References

  1. Sa Gyun Kim, Chil Koo Choi, Management Counterplan and Protected Horticulture Affected by Rising of Oil Prices, 2002, The Korean Society for Bio-Environment Control, Vol. 15, No. 1, pp. 1-8.
  2. J. K. Kwon, Y. H. Choi, D. K. Park, J. H. Lee, K. Y. Kang, Y. C. Um, 1999, Survey on Insulation and Heating of Greenhouse Grown Fruit Vegetables in Southern Region, KSHS, pp. 218-218.
  3. Byoung Woo Park, 1996, Flower Industry And development challenges, Monthly Bulletin of Nonghyup research, Vol. 12.
  4. Choi Dong-Ho, Huh Joung-Chul, Lim Jong-Hwan, Suh Hyo-Duk, 1999, Evaluation of Heating Performance and Analysis of Heating Loads in Single Span Plastic Greenhouse with Electrical of Hot-Air Heating, Protected Horticulture and Plant Factory, Vol. 8, No. 8, pp. 136-149.
  5. Chi S.W., 1976, Heat Pipe Theory and Practice, Willey, pp. 15-34.
  6. G. L. Morrison, I. Budihardjo and M. Bhnia, 2004, Water in glass Evacuated Tube Solar Water Heaters, Solar energy, Vol. 76, pp. 135-140. https://doi.org/10.1016/j.solener.2003.07.024
  7. S. B. Riffat, X. Zhao and P.S. Doherty, 2005, Developing a theoretical model to investigate thermal performance of a thin membrane heat pipe solar collector, Applied Thermal Engineering, Vol. 25, pp. 899-915. https://doi.org/10.1016/j.applthermaleng.2004.08.010
  8. S. A. Kalogirou, 2003, The potential of solar industrial process heat applications, Applied Energy, Vol. 76, pp. 337-361. https://doi.org/10.1016/S0306-2619(02)00176-9
  9. H.K. Song, J.G. Ro, J.K. Park, Y.K. Kang, H.C. Kim, 1997, A Study on the Heat pump - Latent Heat Storage System for the Greenhouse Heating, Korean Society for Agricultural Machinery, pp. 113-120.