Original scientific paper
EXERGY POWER OF THE BINARY RANKINE CYCLE AT THE GEOTHERMAL RESERVOIR KUTNJAK-LUNJKOVEC
Tomislav Kurevija
orcid.org/0000-0002-5469-3653
; Faculty of Mining, Geology and Petroleum Engineering, Department of Petroleum Engineering, University of Zagreb, Zagreb, Croatia
Maja Gregurić
; INA d.d. SD Naftaplin, Zagreb, Hrvatska
Abstract
With comprehensive exploration activities and production field testing of the geothermal reservoir, that were conducted by INA d.d. Zagreb, as well as with engagement of Legrad municipality and Koprivničko-Križevačka County, necessary conditions for construction start-up of the Kutnjak-Lunjkovec geothermal power plant have been realized. Furthermore, Government of the Republic of Croatia, during year 2006, has adopted project support mechanism. Due to fact that in the ''Concept Study of Commercial Utilization of the Geothermal Energy at the Kutnjak-Lunjkovec locality'', done by Faculty of Economics in Zagreb, there is no exact thermodynamic analysis of the installed power values, nor the internal losses of energy in the power plant were taken into consideration, value of presented 2 MWe installed net power becomes quite doubtful. Taking into account that entire economical analysis of the project relies on this particular value, in this article actual energy potential of the Kutnjak-Lunjkovec reservoir will be determined, in view of production and injection capabilities of two wells and exergy principle of reservoir valorisation, as well as in the light of the first and second law of thermodynamics.
Keywords
geothermal power resources; geothermal reservoir; circular process; free energy; technical calculation; feasibility viewpoint; house heating; Croatia, Lunjkovec-Kutnjak
Hrčak ID:
21764
URI
Publication date:
28.2.2008.
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