DETERMINING UNDISTURBED GROUND TEMPERATURE AS PART OF SHALLOW GEOTHERMAL RESOURCES ASSESSMENT
Journal Title: UNKNOWN - Year 2010, Vol 22, Issue 1
Abstract
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.
Authors and Affiliations
Tomislav Kurevija Domagoj Vulin
Keywords
Related Articles
- EP ID EP30010
- DOI -
- Views 222
- Downloads 1
DEVELOPMENT OF RAW MATERIALS' EXPLOITATION FOR THE CEMENT PRODUCTION IN THE OPEN PITS »PARTIZAN« AND »PRVOBORAC« OF THE »DALMACIJA CEMENT« COMPANY
The article presents the exploitation of mineral raw materials for the cement industry of Split from the beginning of this century till today. Geological and geomcchanical characteristic of the open pits »Partizan« and "...
OIL AND GAS FUTURES AND OPTIONS MARKET
Energy mineral resources markets are represented by complex supply and demand ratios which are depending on different factors such as technical (transport) and geopolitical. The main specific of energy markets is represe...
TEORIJSKO I PRAKTIČNO VREDNOVANJE RUDARSKOG PROJEKTIRANJA
Rudarski je projekt odrednica i vodilja svih aktivnosti u praksi i općenito nije vrednovan adekvatno njegovu značenju. U projektantskim je podlogama uvijek prisutan rizik. Minimum je istraživanja propisan. Usvojeno zako...
DNEVNA PROMJENA JAKOSTI MAGNETSKOG POLJA ZEMLJE
Dnevna promjena jakosti magnetskog polja Zemlje mijenja se prostorno i tijekom vremena. S obzirom na veliku preciznost novih protonskih magnetometara postavilo se pitanje kako se mijenja dnevna promjena udaljavanjem od b...
PROGNOZA ODVALA U TUNELIMA PREMA GEOLOŠKI DEFINIRANIM RAVNINAMA DISKONTINUITETA
Inženjerskogeološki podaci moraju biti adekvatno pripremljeni za kasniju provjeru stabilnosti podzemnih prostorija. Srednje vrijednosti smjera i nagiba ravnina diskontinuiteta nisu mjerodavne, nego granice područja tih k...