A study on the evaluation of the annual energy consumption for a geothermal heat pump system with open loop and closed loop ground heat exchangers

Samuel Boahen, Kwang Ho Lee, Soolyeon Cho, Jong Min Choi

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Heating and cooling systems contribute greatly to the energy consumption and CO 2 emissions of many countries. Ground source heat pumps (GSHP) are promising energy saving systems for residential, commercial or industrial heating or cooling purposes. A method to estimate the energy consumption and CO 2 emission of GSHPs is therefore very eminent. This paper reviews the methodology to calculate the energy consumption and CO 2 emission of GSHPs. The discussed methodology is then used to compare the energy consumption and CO 2 emission of an open-loop and closed-loop GSHP using data from field test. It is observed that the open-loop GSHP saves 28% energy and reduces CO 2 by 28% than the closed-loop GSHP in the cooling season. When used for both cooling and heating purposes in the year, the open-loop GSHP saves about 6% energy and reduces about 6% of CO 2 emission than the closed-loop GSHP.

Original languageEnglish
Article number1750024
JournalInternational Journal of Air-Conditioning and Refrigeration
Volume25
Issue number3
DOIs
Publication statusPublished - 2017 Sep 1
Externally publishedYes

Keywords

  • CO emission
  • Energy consumption
  • GSHP
  • HSPF
  • SEER

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Renewable Energy, Sustainability and the Environment
  • Fluid Flow and Transfer Processes

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