Determining the temperature field for cylinder symmetrical heat conduction problems in unsteady heat conduction in finite space

  • Authors:

  • László Garbai;Szabolcs Méhes

  • Affiliations:

  • Department of Building Service, Budapest University of Technology and Economics, Budapest, Hungary;Department of Building Service, Budapest University of Technology and Economics, Budapest, Hungary

  • Venue:
  • EE'07 Proceedings of the 2nd IASME/WSEAS international conference on Energy and environment
  • Year:
  • 2007

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Abstract

This paper proposes to present a new method to calculate unsteady heat conduction for cylinder symmetrical geometry. We will investigate the situation where the temperature field and heat flux created around a heat source placed in finite space are determined. Such a situation arises when we define the temperature field and heat loss around district heating pipes laid underground as well as in the case of geothermal wells. Growing energy prices increasingly justify the use of geothermal energy. It is well-known that geothermal energy, thermal water and its heat can be used directly but if a higher temperature level is needed we must install a heat pump or a boiler plant to meet peak demands. The method presented in this paper can also be used for the energy analysis of geothermal wells.