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A Study on the Cooling Heating Performance Experiment by Refrigerant Auto Control of Geothermal Heat Pump

지열히트펌프 냉매자동조절에 따른 냉·난방 성능실험에 관한 연구

  • 구남열 (한국폴리텍대학 그린에너지설비공학과) ;
  • 서승일 ((주)썬텍그린)
  • Received : 2014.12.08
  • Accepted : 2015.02.09
  • Published : 2015.03.01

Abstract

This study presents analysis of the experimental data meeting conditions of several applications in real time. The results of this experimental study are as follows: Respectively in cooling and heating performance, a refrigerant charge tank can take automatic control of variation of the refrigerant quantity by controling pressure and temperature of system and outlet water temperature. The COP shows 3.5 in cooling operation and 3.2 in heating operation. The refrigerant quantity increases 0.69 kJ/h. When the outdoor temperature decreases $1^{\circ}C$, Therefore if the temperature become lower from $25^{\circ}C$ to $-16^{\circ}C$, the refrigerant quantity increases about 9.5%. Compared to the normal state experiment results, the COP in automatic control of the refrigerant quantity rises roughly 10%.

Keywords

References

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