Geometrical and thermodynamical design of a micro-steam radial turbine for different organic fluids

Abstract

Micro-CCHP systems use different prime movers. The purpose of this article is to design a micro-steam turbine to be used in a micro-CCHP organic Rankine cycle (ORC) for using in residential buildings. For this purpose, a one-dimensional model for a single stage radial inflow turbine is presented and the micro-turbine is designed geometrically and thermodynamically. The geometrical and thermodynamical parameters of the micro-turbine are presented for ten different organic fluids. The results are validated with two different references. The comparison shows good agreement. The exergy efficiency for all the cases is calculated

Keywords

• radial-inflow turbine; exergy efficiency; ORC; CCHP.