Article (Scientific journals)
Design of a small-scale organic Rankine cycle engine used in a solar power plant
Georges, Emeline; Declaye, Sébastien; Dumont, Olivier et al.
2013In International Journal of Low Carbon Technologies
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Keywords :
Organic Rankine cycle; scroll expander; small-scale solar power plant
Abstract :
[en] Under the economic and political pressure due to the depletion of fossil fuels and global warming concerns, it is necessary to develop more sustainable techniques to provide electrical power. In this context, the present study aims at designing, building and testing a small-scale organic Rankine cycle (ORC) solar power plant ( 3 kWe) in order to define and optimize control strategies that could be applied to larger systems. This paper presents a first step of the design of the solar power plant and focuses more specifically on the ORC engine. This design is defined on the basis of simulation models of the ORC engine and takes into account some technical limitations such as the allowed operating ranges and the technical maturity of the components. The final configuration includes a diaphragm pump, two plate heat exchangers for the regenerator and the evaporator, an air-cooled condenser, two hermetic scroll expanders in series and R245fa as the working fluid. Simulations indicate that an efficiency close to 12% for the ORC engine can be reached for evaporating and condensing temperatures of 140 and 358C, respectively.
Disciplines :
Energy
Author, co-author :
Georges, Emeline ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Systèmes énergétiques
Declaye, Sébastien ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Systèmes énergétiques
Dumont, Olivier ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Systèmes énergétiques
Quoilin, Sylvain  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Systèmes énergétiques
Lemort, Vincent  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Systèmes énergétiques
Language :
English
Title :
Design of a small-scale organic Rankine cycle engine used in a solar power plant
Publication date :
12 May 2013
Journal title :
International Journal of Low Carbon Technologies
ISSN :
1748-1317
eISSN :
1748-1325
Publisher :
Oxford University Press, Oxford, United Kingdom
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 30 May 2013

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