Effect of the ground heat exchanger dimensions on the heliosystem operation with coupled modes

Authors

DOI:

https://doi.org/10.15276/opu.1.43.2014.23

Keywords:

ground heat exchanger, seasonal heat accumulator, solar plant/heliosystem

Abstract

The numerical investigations of unsteady heat transfer in the seasonal heat accumulator of a solar plant system with a ground heat exchanger in the process of  a periodic, with a diurnal cycle, charging in the summer period, are carried out. The heat exchanger is a vertical sonde with a coaxial tube arrangement. The mathematical model of conjugated operation of the heliosystem and the ground heat exchanger includes differential equations describing the conditions of entry and conversion of the solar energy in the sunlight collector, as well as the heat exchange in both the ground heat exchanger and in the array of ground. The necessity of considering the mutual influence of dimensions of the sunlight collectors and of the ground  heat exchanger is shown. Under given conditions this effect may be expressed as the functional dependence upon the cost characteristic, that is, the speed of the heat carrier in the ground heat exchanger. The method of choosing the heat exchanger length  depending on the area of different heliocollectors, subject to the limitation of the heat-carrying velocity, is introduced.

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Author Biographies

Viktor V. Wysochin, Odessа Polytechnic National University

канд. техн. наук, доц.

V. I. Motsny, Odessа Polytechnic National University

бакалавр

References

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Published

2014-02-24

How to Cite

[1]
Wysochin, V.V. and Motsny, V.I. 2014. Effect of the ground heat exchanger dimensions on the heliosystem operation with coupled modes. Proceedings of Odessa Polytechnic University. 1(43) (Feb. 2014), 137–141. DOI:https://doi.org/10.15276/opu.1.43.2014.23.