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New solutions for the short-time analysis of geothermal vertical boreholes.

Author(s) : LAMARCHE L., BEAUCHAMP B.

Type of article: Article

Summary

Many models, either numerical or analytical, have been proposed to analyse the thermal response of vertical heat exchangers that are used in ground coupled heat pump systems. In both approaches, most of the models are valid after few hours of operation since they neglect the heat capacity of the borehole. This is valid for design purposes, where the time of interest is in the order of months and years. Recently, the short time response of vertical boreholes became a subject of interest. In this paper, the authors present a new analytical approach to treat this problem. It solves the exact solution for concentric cylinders and is a good approximation for the familiar U-tube configuration. [Reprinted with permission from Elsevier. Copyright, 2006].

Details

  • Original title: New solutions for the short-time analysis of geothermal vertical boreholes.
  • Record ID : 2007-2299
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 50 - n. 7-8
  • Publication date: 2007/04

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