The cooling seasonal performance factor of a hybrid ground-source heat pump with parallel and serial configurations

Honghee Park, Joo Seoung Lee, Wonuk Kim, Yongchan Kim

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

A hybrid ground-source heat pump (HGSHP) is proposed to overcome the decrease in the performance of a ground-source heat pump (GSHP) at the degraded ground thermal condition. In this study, a performance comparison between the GSHP and the HGSHP with parallel and serial configurations was conducted by varying the leaving fluid temperature (LFT) of the ground heat exchanger (GHEX), the fluid flow rate of the supplemental loop, the mean outdoor bin temperature, and the switching temperature of the hybrid operation. At the LFT of the GHEX of 40 °C, the coefficient of performances (COPs) for the HGSHP with the parallel and serial configurations were 18% and 6% higher than that of the GSHP, respectively. The cooling seasonal performance factors (CSPFs) of the HGSHPs with the parallel and the serial configurations were 6.5% and 2.0% higher, respectively, than that of the GSHP for Daegu city in South Korea.

Original languageEnglish
Pages (from-to)877-884
Number of pages8
JournalApplied Energy
Volume102
DOIs
Publication statusPublished - 2013

Keywords

  • COP
  • Configuration
  • Cooling seasonal performance factor
  • Ground thermal degradation
  • Heat rejection ratio
  • Hybrid ground-source heat pump

ASJC Scopus subject areas

  • Building and Construction
  • Energy(all)
  • Mechanical Engineering
  • Management, Monitoring, Policy and Law

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