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Session: Poster session & Sponsor Exhibition
Session starts: Monday 07 October, 14:00

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Abdul Nassar (SoftInWay Inc)
Leonid Moroz (SoftInWay Inc)
Avinash S. Ravi (SoftInWay Inc)
Oleg M Guryev (SoftInWay Inc)

Abstract:
The Organic Rankine Cycle (ORC) named for its use of an organic, high molecular mass fluid with a liquid-vapor phase change or boiling point, occurring at a lower temperature than the water-steam phase change. Due to its usage of low temperature heat sources, the applications of organic rankine cycle are enumerable such as geothermal power generation, industrial waste heat, power generation using solar troughs etc…. Though the cycle efficiencies of ORC are lower, they still are a viable choice when the heat source is of low grade. When used in generic cycle they complement the overall cycle’s efficiencies by generating power from waste heat. The turbine / expander being major equipment plays a vital role in increasing the overall cycle efficiency. Due to the low heat source and use of organic fluids make the flow path design is interesting and challenging. The designer is always at the cross road in deciding on whether to choose a radial or axial flow path for the turbine. This project involves preliminary and detailed design of a radial and axial turbine for given specifications and details on the issues related to sizing, performance, limitation and viability of each of these machines for the given application. In the detailed design many geometrical parameters are selected for optimizing and the influence of different geometrical parameters on the performance is discussed in detail. This paper describes the procedure for developing an ORC turbine from conceptual stages to detailed flow-path design and development of 3D blades