Fluid Dynamic and Thermodynamic Performance of Geothermal Turbines Operating by Steam Mixed with Noncondensable Gases : 1st Report, Theoretical Study

概要

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Generally speaking, geothermal fluids used for operating a turbine for geothermal power station contain several percent (in mass) non condensable gases. The major component of these noncondensable gases is carbon dioxide. For the purpose of clarifying the thermodynamic performance of a geothermal turbine, a calculation formula for obtaining the properties of wet steam mixed with noncondensable gases is shown. And steam table mixed with gases was prepared by using the calculation formula. In addition, the influence of noncondensable gases on the thermodynamic performance of geothermal turbines was also made clear.
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