Fundamental Performance of the Total Flow Screw Expander

( Influences of the Operating Conditions on the Loss Classification )

Abstract

Most of the geothemal resources are liquid dominated. Since turbomachinery is not suitable to convert the energy directly from the wet steam, then displacement type machine also should be researched. In this paper, simulation analysis are performed to adopt two-phase helical screw expander in a small total flow power generation system. Influence of operating conditions on each loss factor are clarified. Further more, the classification method of losses are indicated. It gives a effective improvement guideline for the any operating conditions.