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DETERMINING UNDISTURBED GROUND TEMPERATURE AS PART OF SHALLOW GEOTHERMAL RESOURCES ASSESSMENT

Tomislav Kurevija
Domagoj Vulin


Puni tekst: engleski pdf 2.441 Kb

str. 27-36

preuzimanja: 1.039

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Sažetak

The undisturbed ground temperature is one of the key thermogeological parameters for the assessment and utilization of shallow geothermal resources. Geothermal energy is the type of energy which is stored in the ground where solar radiation has no effect. The depth at which the undisturbed ground temperature occurs, independent of seasonal changes in the surface air temperature, is functionally determined by climate parameters and thermogeological properties. In deeper layers, the increase of ground temperature depends solely on geothermal gradient. Determining accurate values of undisturbed ground temperature and depth of occurrence is crucial for the correct sizing of a borehole heat exchanger as part of the ground-source heat pump system, which is considered the most efficient technology for utilising shallow geothermal resources. The purpose of this paper is to define three specific temperature regions, based on the measured ground temperature data collected from the main meteorological stations in Croatia. The three regions are: Northern Croatia, Adriatic region, and the regions of Lika and Gorski Kotar.

Ključne riječi

undisturbed ground temperature; shallow geothermal energy; thermogeology

Hrčak ID:

61641

URI

https://hrcak.srce.hr/61641

Datum izdavanja:

4.12.2010.

Podaci na drugim jezicima: hrvatski

Posjeta: 2.113 *