Possibilities of electricity generation in the Republic of Croatia by means of geothermal energy

Guzović, Zvonimir and Lončar, Dražen and Ferdelji, Nenad (2010) Possibilities of electricity generation in the Republic of Croatia by means of geothermal energy. = Possibilities of electricity generation in the Republic of Croatia by means of geothermal energy. Energy, 35 (8). pp. 3429-3440. ISSN 0360-5442. Vrsta rada: ["eprint_fieldopt_article_type_article" not defined]. Kvartili JCR: Q1 (2010). Točan broj autora: 3.

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Abstract

In the Republic of Croatia there are some medium temperature geothermal sources by means of which it is possible to produce electricity. However, only recently concrete initiatives for the construction of geothermal power plants have been started. Consequently, the paper provides proposals of the possible cycles for the Republic of Croatia. On the example of the most prospective geothermal source in the Republic of Croatia detailed analysis for the proposed energy conversion cycles is performed: for Organic Rankine Cycle (ORC) and Kalina cycle. On the basis of analysis results both the most suitable cycle for selected and for other geothermal sources in the Republic of Croatia are proposed. It is ORC which in case of the most prospective geothermal source in the Republic of Croatia has better both the thermal efficiency (the First Law efficiency) and the exergetic efficiency (the Second Law efficiency): 14.1 vs. 10.6 and 52 vs. 44. The ORC gives net power of 5270 kW with mass flow rate 80.13 kg/s, while the Kalina cycle gives net power of 3949 kW with mass flow rate 35.717 kg/s. © 2010 Elsevier Ltd.

Item Type:	Article (["eprint_fieldopt_article_type_article" not defined])
Keywords (Croatian):	Analysis results; Binary plants; Croatia; Electricity generation; Exergetic efficiency; First law efficiency; Geothermal sources; Kalina cycle; Mass flow rate; Medium temperature; Organic Rankine cycles; Second law efficiencies; Thermal efficiency; Electric generators; Energy conversion; Geothermal power plants; Mass transfer; Pipe flow; Renewable energy resources; Rankine cycle; electricity generation; exergy; flow regulation; geothermal energy; power plant; thermodynamics; Croatia
Subjects:	TECHNICAL SCIENCE > Mechanical Engineering
Divisions:	300 Department of Thermodynamics, Thermal and Process Engineering > 310 Chair of Technical Thermodynamics 500 Department of Energy, Power Engineering and Environment > 510 Power Engineering and Energy Management Chair 500 Department of Energy, Power Engineering and Environment > 530 Chair of Turbomachinery
Indexed in Web of Science:	Yes
Indexed in Current Contents:	Yes
Quartiles:	Q1 (2010)
Date Deposited:	14 Apr 2015 09:45
Last Modified:	25 Mar 2016 07:44
URI:	http://repozitorij.fsb.hr/id/eprint/3670

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