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
HRVATSKI PRIRODNI KAMEN NA TRŽIŠTU I U OKVIRU EUROPSKIH NORMI
Izloženi su podaci o prirodnom kamenu Hrvatske na tržištu u posljednjih pedesetak godina. Republika Hrvatska pridruženi je član CEN-a. Za aneks europskoj normi prEN 12440 Denomination of natural stone predan je popis hrv...
DETERMINING UNDISTURBED GROUND TEMPERATURE AS PART OF SHALLOW GEOTHERMAL RESOURCES ASSESSMENT
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 w...
HRVATSKI STUDENTSKI OGRANAK SPE-a
U proljeće ove godine, od 13. do 15. svibnja 2015. godine, hrvatski studentski ogranak SPE-a bio je domaćin druge po redu međunarodne studentske energetske konferencije (ASEC 2015). Primarni je cilj ove konferencije oku...
NUMERIČKO MODELIRANJE DISKONTINUIRANOG STIJENSKOG MATERIJALA U ELASTIČNOM PODRUČJU
Konstitutivni odnosi stijenskih materijala predstavljaju važnu komponentu u numeričkom modeliranju. Zbog kompleksne prirode stijenskih materijala nije moguće izabrati opće prihvatljiv konstitutivni zakon. Ispitane su mog...
TEORIJSKE POSTAVKE DVOKOTURNOG POGONA DIJAMANTNE ŽIČNE PILE ZA EKSPLOATACIJU ARHITEKTONSKOG KAMENA
Razmatra se mogućnost i opravdanost izrade dijamantne žične pile s dva pogonska kotura. Razrađene su teorijske postavke takvog pogona. Računskim primjerom se dokazuju prednosti koje bi pridonio takav pogon pri eksploatac...