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A Retrofit for Geothermal Organic Rankine Cycles based on Concentrated Solar Thermal Systems

Title data

Heberle, Florian ; Hofer, Markus ; Brüggemann, Dieter:
A Retrofit for Geothermal Organic Rankine Cycles based on Concentrated Solar Thermal Systems.
In: Energy Procedia. Vol. 129 (September 2017) . - pp. 692-699.
ISSN 1876-6102
DOI: https://doi.org/10.1016/j.egypro.2017.09.148

Abstract in another language

In this study, a solar thermal retrofit unit for geothermal ORC power plants is analysed under thermodynamic and technical aspects. For the retrofit, the ORC module is extended by a solar superheater and the additional heat input is realized by parabolic trough collectors. The evaluation of the entire system is based on simulations over the period of one year. Therefore, a case study considering geothermal conditions of the Aydin-Salavatli field in the Büyük Menderes Graben in Turkey is conducted. Quasi-stationary simulations of the system are performed considering off-design behaviour of the power plant components. The calculations are based on hourly climate data. The obtained operational parameter of the ORC and solar-field emphasise the technical feasibility of the selected superheating concept in the context of thermal stability of the working fluid. For the considered solar-field sizes, the annually generated electricity is increased up to 4.5 % compared to the stand-alone geothermal power plant.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: Organic Rankine Cycle; geothermal; solar; hybrid; retrofit; off-design calculations
Institutions of the University: Faculties > Faculty of Engineering Science > Chair Engineering Thermodynamics and Transport Processes
Faculties > Faculty of Engineering Science > Chair Engineering Thermodynamics and Transport Processes > Chair Engineering Thermodynamics and Transport Processes - Univ.-Prof. Dr.-Ing. Dieter Brüggemann
Profile Fields > Emerging Fields > Energy Research and Energy Technology
Research Institutions > Research Units > ZET - Zentrum für Energietechnik
Faculties
Faculties > Faculty of Engineering Science
Profile Fields
Profile Fields > Emerging Fields
Research Institutions
Research Institutions > Research Units
Result of work at the UBT: Yes
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 15 Mar 2019 09:25
Last Modified: 18 Mar 2019 07:57
URI: https://eref.uni-bayreuth.de/id/eprint/47321