DYNAMICS OF GROUND HEAT STORAGE AND CHOICE OF RATIONAL SOLUTIONS

A. I. Nakorchevkii

UDC 662.995+536.242

An integral method for solving problems of nonstationary 
heat conduction is proposed. This method can be used for mathematical 
modeling of the dynamics of heat storage in an unbounded ground mass 
with the use of individual heat exchangers positioned upright in the 
ground or a group of heat exchangers. The influence of regular, long 
interruptions in the operation of heat exchangers, which often happen 
in solar power engineering, on the heat-storage process has been considered. 
It has been established that this process should be controlled, individual 
heat exchangers should be provided with intermediate twenty-four-hours' 
heat storage devices, and the work of individual heat exchangers is 
not very efficient. The calculations have shown that the conditions 
of heat storage become better in the case of group deposition of several 
heat exchangers.

Institute of Technical and Thermal Physics, National 
Academy of Sciences of Ukraine, 2a Zhelyabov Str., Kiev, 03057, Ukraine. 
Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 77, No. 4, pp. 
10-19, July-August, 2004. Original article submitted April 
24, 2003; revision submitted October 28, 2003.