Ground Source and Sewage Water Source Heat Pump Systems for Block Heating and Cooling Network

Min-Hwi Kim, Deuk-Won Kim, Gwangwoo Han, Jaehyeok Heo and Dong-Won Lee
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Min-Hwi Kim: Renewable Heat Integration Research Lab, Korea Institute of Energy Research, Gajeong-ro 152, Daejeon 34129, Korea
Deuk-Won Kim: Renewable Heat Integration Research Lab, Korea Institute of Energy Research, Gajeong-ro 152, Daejeon 34129, Korea
Gwangwoo Han: Renewable Heat Integration Research Lab, Korea Institute of Energy Research, Gajeong-ro 152, Daejeon 34129, Korea
Jaehyeok Heo: Renewable Heat Integration Research Lab, Korea Institute of Energy Research, Gajeong-ro 152, Daejeon 34129, Korea
Dong-Won Lee: Renewable Heat Integration Research Lab, Korea Institute of Energy Research, Gajeong-ro 152, Daejeon 34129, Korea

Energies, 2021, vol. 14, issue 18, 1-22

Abstract: The demand for district heating and cooling systems in block units with a heat pump that utilizes various unused energy sources for energy supply has been increasing. This study investigated experimentally the ground source heat pump (GSHP) and sewage water source heat pump (SWSHP) facilities used in block cooling and heating networks. Then, a heat pump performance prediction model was derived for utilization in future designs. Operational data for heating and cooling energy supply from an experimental site were investigated for the period between 2018 and 2020. During the cooling season, the coefficient of performance (COP) of the GSHP was approximately 4.1, and that of the SWSHP was approximately 2.9. The cooling performance of the SWSHP gradually decreased because of the fouling. The COP of the GSHP and SWSHP during the heating season was approximately 3.6 and 3.4, respectively. The results also demonstrated that, if fouling in the SWSHP can be prevented or reduced, the acquired COP can be similar to that of the GSHP. The derived prediction model serves as a good reference for engineers who require information on the performance of field operations.

Keywords: heat pump; ground source; sewage water source; coefficient of performance; curve fitting (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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