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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  

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)
Publication Information
Journal of Bio-Environment Control / v.21, no.4, 2012 , pp. 372-378 More about this Journal
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.
Keywords
coefficient of performance; heating; heat exchanger; heat pump; power generation;
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