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Numerical optimization of an injection volumetric expander for use in waste heat recovery organic Rankine cycle
Declaye, Sébastien; Quoilin, Sylvain; Lemort, Vincent
2011In Proceedings of the 7th International Conference on Compressors and their Systems
Peer reviewed
 

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Abstract :
[en] Waste heat recovery organic Rankine cycle (ORC) systems allow generating mechanical or electrical power from local low grade heat sources. This paper shows how the power produced by the system can be increased by achieving several evaporating pressure levels and injecting low pressure flow during expansion. A numerical model of the vapour injection expansion is developed and different system configurations are compared. In comparison with a simple configuration of the cycle, vapour injection configuration yields a maximum increase of 16% of the power production. Moreover, the specific power can be increased by 26%, which would largely reduce the specific investment cost of the waste heat recovery system.
Disciplines :
Mechanical engineering
Author, co-author :
Declaye, Sébastien ;  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 :
Numerical optimization of an injection volumetric expander for use in waste heat recovery organic Rankine cycle
Publication date :
05 September 2011
Event name :
International Conference on Compressors and their Systems 2011
Event organizer :
City University (London)
Event place :
London, United Kingdom
Event date :
du 5 au 6 septembre 2011
Audience :
International
Main work title :
Proceedings of the 7th International Conference on Compressors and their Systems
Peer reviewed :
Peer reviewed
Available on ORBi :
since 12 September 2011

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