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Earth-air heat exchangers in the Belgian climate: analysis of the potential with a 3D modelling technique.

Author(s) : PAEPE M. de

Summary

In this paper a 3 D unstructured finite volume model was derived; it allows evaluation of the earth-air heat exchanger. The model solves conduction through the soil and the convection from air to the tube wall. The air ground-surface heat transfer is described by the heat flux through convection and solar radiation. The model was used to study the performance of the earth-air heat exchanger in the Belgian climate. It was shown that in summer the air can be cooled with about 9°C at sufficient depth (3 m) and tubes of about 50 m. In winter, heating of 7°C can be realised. It was also shown that a good control strategy is important.

Details

  • Original title: Earth-air heat exchangers in the Belgian climate: analysis of the potential with a 3D modelling technique.
  • Record ID : 2006-1975
  • Languages: English
  • Publication date: 2001/09/11
  • Source: Source: Proc. AIVC Conf., Bath
    CP 22; sess. 3; 12 p.; fig.; 17 ref./AIVC CD n. 6.

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