ANALYSIS OF THE EFFICIENCY OF A BOREHOLE HEAT EXCHANGER WITH LONGITUDINAL RIBBING

The technique of calculating the heat engineering characteristics of a tube-in-tube type heat exchanger has been refi ned by using experimental data on heat transfer and hydraulic resistance of a ribbed tube in an annular channel. An analysis of the effi ciency of a borehole heat exchanger on the basis of various criteria is carried out.
   
Author:  S. V. Goldaev and K. N. Radyuk
Keywords:  geothermal well, heat exchanger, heat fl ux, rectangular rib, effi ciency criterion
Page:  883