Journal of the Korean Solar Energy Society (한국태양에너지학회 논문집)

The Korean Solar Energy Society (한국태양에너지학회)
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A Study on the Geothermal Heat Pump System Performance Analysis according to Water Flow Rate Control of the Geothermal Water Circulation Pump

지열순환펌프 유량변화에 따른 지열히트펌프시스템의 에너지 성능 평가

  • Jung, Young-Ju (Department of Architectural Engineering, Graduate school of Yeungnam University) ;
  • Jo, Jae-Hun (Division of Architecture, Inha University) ;
  • Kim, Yong-Shik (Division of architecture and Urban Planning, Incheon University) ;
  • Cho, Young-Hum (School of Architecture, Yeungnam University)
  • Received : 2014.11.10
  • Accepted : 2014.12.26
  • Published : 2014.12.30
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Abstract

It is important to control the amount of supply water flow rate at all kinds of HVAC systems in order to maintain IAQ and energy efficiency. The most of buildings installed geothermal heat pumps is using fixed water flow rate in spite of the excellent performance of geothermal heat pumps. Especially when the air-conditioning load is low, the flow rate control may be possible to save energy to operate. However, it is effective to apply the variable flow control system in order to reduce energy consumption. Therefore, the purpose of this study, change a water flow rate and improve the whole performance of the geothermal heat pump. Geothermal heat pump system is modeled after the selection of the applied building, by setting the flow rate control to be analyzed through a simulation of performance evaluation. Building energy saving according to the flow rate of the ground circulating water analyze quantitatively and to investigate the importance of the flow control.

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References

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