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

  • 제20권11호
  • /
  • Pages.718-726
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  • 2008
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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)
권호 표지

동시냉난방 열펌프의 전열회수 성능 특성에 관한 연구

Experimental Study on the Performance of a Simultaneous Heating and Cooling Heat Pump in the Heat Recovery Mode

  • 최종민 (한밭대학교 기계공학과) ;
  • 정현준 (고려대학교 기계공학과 대학원) ;
  • 주영주 (고려대학교 기계공학과 대학원) ;
  • 강훈 (고려대학교 기계공학과) ;
  • 김용찬 (고려대학교 기계공학과)
  • Choi, Jong-Min (Department of Mechanical Engineering, Hanbat National University) ;
  • Chung, Hyun-Joon (Graduate School of Mechanical Engineering, Korea University) ;
  • Joo, Young-Ju (Graduate School of Mechanical Engineering, Korea University) ;
  • Kang, Hoon (Department of Mechanical Engineering, Korea University) ;
  • Kim, Yong-Chan (Department of Mechanical Engineering, Korea University)
  • 발행 : 2008.11.10
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초록

The cooling load in winter is significant in buildings and hotels because of the usage of office equipments and the high efficiency of wall insulation. Hence, the development of a multi-heat pump that can cover heating and cooling simultaneously for each indoor unit is required. In this study, the performance of a simultaneous heating and cooling heat pump was investigated in the heat recovery mode (HR mode). The system adopted a variable speed compressor using R410A with four indoor units and one outdoor unit. In the HR mode, the capacity and COP were improved as compared with those in the cooling or heating mode because the waste heat in the outdoor unit was utilized as useful heat in the indoor units. However, energy imbalance between heating and cooling capacity of each indoor unit was observed in the 2H-1C HR mode. Therefore, the performance of the system in the 2H-1C HR mode was enhanced by controlling refrigerant flow rate through the outdoor unit.

키워드

참고문헌

  1. Jung, H. J., Kang, H., Joo, Y. J., Heo, J., Kim, Y. and Choi, J. M., 2007, Experimental study on the performance improvement of a simultaneous heating and cooling heat pump in the heating-main operating mode, Proceedings of the SAREK, pp. 103-108
  2. Matsuoka, F. and Nagatomo, H., 1988, Dynamic response and electrical control for the air conditioner, Trans. of the JAR, Vol. 5, No. 1, pp. 43-54
  3. Fujita, Y., Kubo, T. and Suma, S., 1992, Multi air conditioner with two indoor units, Refrigeration, Vol. 67, No. 772, pp. 171-176
  4. Choi, J. M. and Kim, Y., 2003, Capacity modulation of an inverter-driven multi-air conditioner using electronic expansion valves, Energy, Vol. 28, No. 2, pp. 141-155 https://doi.org/10.1016/S0360-5442(02)00113-5
  5. Nagatomo, S., 1998, Positive displacement compressor technology for air conditioners, Transactions of the JSRAE, Vol. 15, No. 4, pp. 305-326
  6. Han, D. and Kwon, H., 1999, Zone temperature control of the multi-type heat pump system, Proceedings of the SAREK, pp. 611-616
  7. Outtagarts, A., 1997, The transient response of an evaporator feed through an electronic expansion valve, Int. J. of Energy Research, Vol. 21, pp. 793-807 https://doi.org/10.1002/(SICI)1099-114X(199707)21:9<793::AID-ER297>3.0.CO;2-P
  8. Murphy, F. T., Low, R. E., Gilbert, B. E., Lin -ton, J. W., Snelson, W. K. and Hearty, P. E., 1995, Comparison of R407C and R410A with R22 in a 10.5 kW residential central air-conditioner, Proceedings of International CFC and Halon Alternative Conference, pp. 31-40
  9. Park, T. J., Lee, M. K., Jeong, J. H. and Chang, K. S., 2003, Comparison of performance variation between R-22 and R410A refrigeration systems, Korean Journal of Air-Conditioning and Refrigeration Eng-ineering, Vol. 15, No. 3, pp. 166-176
  10. ANSI/AMCA 210, 1985, Laboratory methods of testing fans for rating, Arlington (VA), ANSI
  11. ARI 210/240, 1986, Unitary air-conditioning and air-source heat pump equipment, Arlington(VA), ARI
  12. ISO/DIS 15042, 2005, Multi-split air conditioners and air-to-air heat pumps testing and rating for performance