Performance of a spiral ground heat exchanger for heat pump application

Download
  1. (PDF, 1 MB)
  2. Get@NRC: Performance of a spiral ground heat exchanger for heat pump application (Opens in a new window)
AuthorSearch for: ; Search for:
TypeArticle
Journal titleInternational Journal of Energy Research
ISSN0363-907X
Volume13
Issue5
Pages503510; # of pages: 8
Subjectground source heat pumps; heat exchangers; cold weather; echangeur de chaleur; temps froid
AbstractA high-efficiency ground heat exchanger has been developed for use with ground-source heat pumps. The exchanger is made of copper tubing, shaped in the form of a spiral, which can be installed in a vertical borehole backfilled with sand. Thermal performance of a full-scale prototype indicated that this heat exchanger can achieve very high heat extraction rates if subfreezing operating temperatures are used. For most soil types cyclic freezing and thawing is not a problem; however, for the sensitive Leda clay in which the prototype tests were conducted, substantial settlement occurred after the first freeze-thaw cycle owing to initial collapse of the soil structure.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
IdentifierIRC-P-1667
NRC number32335
2311
NPARC number20374315
Export citationExport as RIS
Report a correctionReport a correction
Record identifier9b2bfd21-28f0-4b07-8755-a9a15b84674e
Record created2012-07-23
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)