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Steam as the working fluid for power recovery from exhaust gases by means of screw expanders.
Mechanical power is most commonly recovered from external heat sources, such as combustion products,in a Rankine cycle system, using steam as the working fluid. However, in recent years, as interest has grown in using heat sources at lower temperatures for power recovery, there has been a growing trend to look for alternative working fluids and for heat sources at temperatures of up to approximately 200 ◦C. In most cases,it has been shown that Organic Rankine Cycle systems
(ORC’s), using light hydrocarbons orcommonrefrigerants instead of steam, have distinct advantages. These fluids have unique properties and much of the art of getting the best system, for power recovery from agiven heat source, is based on the choice of the most suitable fluid [1–5].
Steam as the working fluid for power recovery from exhaust gases by means of screw expanders.
Mechanical power is most commonly recovered from external heat sources, such as combustion products,in a Rankine cycle system, using steam as the working fluid. However, in recent years, as interest has grown in using heat sources at lower temperatures for power recovery, there has been a growing trend to look for alternative working fluids and for heat sources at temperatures of up to approximately 200 ◦C. In most cases,it has been shown that Organic Rankine Cycle systems
(ORC’s), using light hydrocarbons orcommonrefrigerants instead of steam, have distinct advantages. These fluids have unique properties and much of the art of getting the best system, for power recovery from agiven heat source, is based on the choice of the most suitable fluid [1–5].
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