Journal of Bio-Environment Control (생물환경조절학회지)

The Korean Society for Bio-Environment Control (한국생물환경조절학회)
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Heat Exchanger Design of a Heat Pump System Using the Heated Effluent of Thermal Power Generation Plant as a Heat Source for Greenhouse Heating

화력발전소의 온배수를 열원으로 이용하는 시설원예 난방용 히트펌프 시스템의 열교환기 설계기준 설정

  • Ryou, Young Sun (Dept. of Energy & Environmental Eng., National Academy of Agricultural Science) ;
  • Kang, Youn Ku (Dept. of Energy & Environmental Eng., National Academy of Agricultural Science) ;
  • Jang, Jae Kyung (Dept. of Energy & Environmental Eng., National Academy of Agricultural Science) ;
  • Kim, Young Hwa (Dept. of Energy & Environmental Eng., National Academy of Agricultural Science) ;
  • Kim, Jong Goo (Dept. of Energy & Environmental Eng., National Academy of Agricultural Science) ;
  • Kang, Geum Chun (Dept. of Energy & Environmental Eng., National Academy of Agricultural Science)
  • 유영선 (국립농업과학원 에너지환경공학과) ;
  • 강연구 (국립농업과학원 에너지환경공학과) ;
  • 장재경 (국립농업과학원 에너지환경공학과) ;
  • 김영화 (국립농업과학원 에너지환경공학과) ;
  • 김종구 (국립농업과학원 에너지환경공학과) ;
  • 강금춘 (국립농업과학원 에너지환경공학과)
  • Received : 2012.09.24
  • Accepted : 2012.10.19
  • Published : 2012.12.31
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Abstract

This study was carried out in order to determine the optimum length of a roll type PE pipe heat exchanger employed in the water-to-water heat pump system using the waste heat of the heated effluent flowed out from thermal power generation plants as a heat source. And the heat pump system of 30 RT for an experimental test was designed and manufactured. And also PE pipes were employed to recover the waste heat from the heated effluent. The inside diameter of PE pipe heat exchanger was 20 mm, the thickness was 2 mm and the diameter of a roll was 1,000 mm. And from the results of this study, we found that the optimum length of PE pipe heat exchanger was 75 m per the heat pump capacity of 1.0 RT (3.51 kW) and then the heating COP of heat pump system was 3.8.

본 연구에서는 화력발전소에서 온배수의 형태로 배출되는 폐열을 히트펌프의 열원으로 이용하여 온실의 난방에 활용할 수 있는 히트펌프 시스템을 설계 제작하였으며, 난방 성능을 분석하여 PE 파이프 열교환기의 설계기준을 제시하고자 하였다. PE 파이프 열교환기의 내경은 20mm, 두께는 2mm였으며, Roll의 직경은 1,000mm로 하였다. 연구결과 PE파이프 열교환기의 적정 길이는 1.0RT당 75m로 설계하는 것이 바람직할 것으로 판단되었으며, 이때 히트펌프시스템의 난방성능계수(COPh)는 3.8로 나타났다.

Keywords

References

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