[en] This paper considers a whole range of ORC applications, in terms of power (from the kW-scale to the multi-MW plants), heat source temperature (from 90°C to more than 300°C) or heat source nature (solar, biomass, waste heat recovery, geothermy, etc.).
Five typical ORC applications are considered in terms of evaporating and condensing temperature. A screening of the most used ORC working fluids is performed, and their thermodynamics performances are compared with respect to the foreseen application.
A detailed analysis of the most common expansion machines is then conducted, by comparing their respective operating maps for each fluid and for each application type. The considered expansion machines are the single-stage radial-inflow turbine, the screw expander, and the scroll expander, which are widely used in commercial applications and/or in scientific literature. The limitations of these machines are listed and considered to define an operating map for each considered fluid.
Finally, the allowable power range is described with respect to the application and to the selected expansion device.
Disciplines :
Energy
Author, co-author :
Quoilin, Sylvain ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Systèmes énergétiques
Declaye, Sébastien ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Turbomachines et propulsion aérospatiale
Lemort, Vincent ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Systèmes énergétiques
Language :
English
Title :
Expansion Machine and fluid selection for the Organic Rankine Cycle
Publication date :
July 2010
Event name :
7th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics
Event organizer :
HEFAT
Event place :
Antalya, Turkey
Event date :
from 19-07-2010 to 21-07-2010
Audience :
International
Main work title :
Proceedings of the 7th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics
