Thermoeconomic Analysis of Hybrid Power Plant Concepts for Geothermal Combined Heat and Power Generation

Florian Heberle and Dieter Brüggemann
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Florian Heberle: Zentrum für Energietechnik, Universität Bayreuth, Universitätstrasse 30, Bayreuth 95447, Germany
Dieter Brüggemann: Zentrum für Energietechnik, Universität Bayreuth, Universitätstrasse 30, Bayreuth 95447, Germany

Energies, 2014, vol. 7, issue 7, 1-16

Abstract: We present a thermo-economic analysis for a low-temperature Organic Rankine Cycle (ORC) in a combined heat and power generation (CHP) case. For the hybrid power plant, thermal energy input is provided by a geothermal resource coupled with the exhaust gases of a biogas engine. A comparison to alternative geothermal CHP concepts is performed by considering variable parameters like ORC working fluid, supply temperature of the heating network or geothermal water temperature. Second law efficiency as well as economic parameters show that hybrid power plants are more efficient compared to conventional CHP concepts or separate use of the energy sources.

Keywords: geothermal; Organic Rankine Cycle; CHP; hybrid power plant (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2014
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (9)

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