Improvements on analytical modeling for vertical U-tube ground heat exchangers

Hikari Fujii, Ryuichi Itoi, Takashi Ishikami

Research output: Contribution to journalConference articlepeer-review

16 Citations (Scopus)


Improved procedures for performance prediction of vertical U-tube ground heat exchangers (GHEs) in Ground-Coupled Heat Pump (GCHP) systems are proposed using cylindrical source functions. Appropriate length of timesteps to simulate the performance of GHEs under conditions of variable heat loads is also studied for the practical application of the procedures.

Original languageEnglish
Pages (from-to)73-77
Number of pages5
JournalTransactions - Geothermal Resources Council
Publication statusPublished - Dec 1 2004
EventGeothermal Energy: The Reliable Renewable - Geothermal Resources Council 2004 Annual Meeting, GRC - Indian Wells, CA, United States
Duration: Aug 29 2004Sep 1 2004

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Geophysics


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