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Three-dimensional numerical simulation and heat transfer analysis for U-tube ground heat exchangers.

[In Chinese. / En chinois.]

Author(s) : LI D., LIAO S.

Type of article: Article

Summary

Based on the energy conservation equation for the unsteady state flow, obtains the variation of the fluid temperature in U-tube with the axial direction, and establishes three-dimensional numerical model of coupled heat transfer between U-tube ground heat exchangers and soil. Comparing with the analytic solution and DST model in TRNSYS, the numerical model can improve the accuracy of transient heat transfer simulation. With a constant external load, analyses the relations among the inlet/outlet fluid temperature, the heat transfer capacity and the external load.

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Pages: pp. 14-17

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Details

  • Original title: [In Chinese. / En chinois.]
  • Record ID : 2009-2158
  • Languages: Chinese
  • Source: HV & AC - vol. 38 - n. 219
  • Publication date: 2008/12

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