The thermodynamic analysis of multicycle ORC engine

The thermodynamic analysis of multicycle ORC engine working with R123 has been presented. This ORC engine utilizes low temperature waste heat sources. The system produces vapour at more than one value of pressure so the waste heat source could be more effectively utilized in this case. The new construction of sliding vane expansion machine was proposed. In each section of the machine the working fluid is expanded in various range of pressure.