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 169
- Downloads 1
BOOK REVIEW “HYDROLOGY”
The second edition of the book “Hydrology“ was printed in 2015 (in Croatian) by author Ranko Žugaj, Ph. D., MSc. Civ. Eng., Full Professor of the Faculty of Mining, Geology and Petroleum Engineering of the University of...
NOVA METODA PRIDOBIVANJA PLINA KAO NAČIN SMANJIVANJA OPASNOSTI U PODZEMNIM RUDNICIMA UGLJENA
Napredak u pridobivanju ugljena u mnogim je zemljama, posebice u Indiji, suočen s brojnim problemima. Postoje velike emisije plinova, njihove iznenadne eksplozije, požari, prašina, samozapaljenje te visoke koncentracije...
PRIKAZ KNJIGE „STATISTIKA U GEOLOGIJIˮ
U svibnju 2015. godine iz tiska je izišla knjiga „Statistika u geologijiˮ (slika 1) autora izv. prof. dr. sc. Tomislava Malvića, dipl. ing. geol., zaposlenoga u Ini i na Rudarsko-geološko-naftnome fakultetu Sveučilišta...
DEVELOPMENT TRENDS AND POSSIBILITIES FOR UNIVERSITY COURSES IN MINING AND GEO-TECHNOLOGY
A short review of university courses in Slovenia, with long tradition, is given. Permanent organized research, development, rational ization and modernisat ion in the courses in geo-technology and mining, and cooper-atio...
OTPOR STRUJANJU ZRAKA NA 100 m DULJINE PODZEMNE PROSTORIJE
U sistematizaciji otpora često se prikazuje osnovni linearni otpor kao specifični za 100 metara duljine jamskog vjetrenog provodnika, U standardnim uvjetima takav specifični otpor je karakteriziran prostornim dimenzijama...