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Calculation of a borehole soil heat exchanger for storing heat in the water-bearing stratum taking into account free convection of the formation fluid

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Abstract

A mathematical model of charging and discharging processes in a borehole soil heat exchanger for storing heat in a water-bearing stratrum is proposed. The model takes into account heat transfer owing to free convection of the formation fluid in a water-saturated porous medium and heat losses in the water-impermeable soil formation with reverse motion of the heat-transfer agent. The results of numerical calculations of the temperature distribution in the heat exchanger, performed by the integral balance method for some values of the parameters, are presented.

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Additional information

Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 58, No. 5, pp. 784–792, May, 1990.

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Lukin, V.M. Calculation of a borehole soil heat exchanger for storing heat in the water-bearing stratum taking into account free convection of the formation fluid. Journal of Engineering Physics 58, 603–611 (1990). https://doi.org/10.1007/BF00873176

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Keywords

  • Heat Transfer
  • Convection
  • Mathematical Model
  • Statistical Physic
  • Porous Medium