抄録
Geothermal steam contains a considerable amount of noncondensable gases. Consequently, the efficiency of the gas extracting system has a great influence on plant auxiliary power requirements and thereby the plant efficiency. We have developed and tested the new gas extraction system so called the E. R. R. system which consists of a steam ejector and a two stage radial blower. The steam ejector, having high efficiency at high vacuum pressures, and the radial blower, having high efficiency at low vacuum pressures, are combined to greatly increase overall efficiency. The steam ejectors in this system are driven by steam already used once in the turbine driving radial blower, so that steam consumption in this system decreases to about one hal f of that required for the system using only double-stage ejectors system. The characteristics of ejector driven by the low pressure steam were also analyzed in this test.
