Fluid Dynamic and thermodynamic Performance of Geothermal Turbines Operating by Steam Mixed with Noncondensable Gases : 3rd Report, Confirmation by Performance Test of Actual Turbine

Abstract

As to the thermodynamic performance of steam turbine to be operated by geothermal steam mixed with noncondensable gases, the 1st and 2nd Reports were presented to report on a theoretical calculation method. To confirm the accuracy of the calculation method, we have compared calculated values with actually measured values based on the results of performance tests conducted at a geothermal power generating plant. The result of comparison and examination shows that the result of calculation wherein the effect of gaseous components is taken into consideration well coincide with the results of performance tests within the range of measurement tolerance, and proves the reasonability of the calculation method.