FEASIBILITY AND PERFORMANCE CURVES FOR INTERMITTENT EARTH TUBE HEAT EXCHANGERS.

V. M. Puri

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

A time dependent axisymmetric finite element formulation was used to evaluate the thermal performance characteristics of an intermittent earth tube system. The parameters examined were: pipe diameter, pipe length, initial soil moisture concentration and temperature, and ambient air temperature. Performance curves for both heating and cooling modes were obtained. The soil temperature regeneration characteristics for intermittent operation indicated complete recovery in the heating mode and only a partial recovery in the cooling mode. Soil moisture in the 20% to 30% range had little effect on heat exchanger performance.

Original languageEnglish (US)
Pages (from-to)526-532
Number of pages7
JournalTransactions of the American Society of Agricultural Engineers
Volume29
Issue number2
StatePublished - Mar 1 1986

All Science Journal Classification (ASJC) codes

  • Agricultural and Biological Sciences (miscellaneous)

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