抄録
A series of tests such as nozzle single tests, blade single tests and single stage turbine tests have been conducted to put a hot water turbine to practical use. A hot water turbine is considered to be very useful for waste heat recovery plant and geothermal power plant etc. In this 1st report, both theoretical and experimental results of Laval nozzles which are used to obtain a high speed two-phase uniform flow from a hot water are described. It is shown both theoretically and experimentally that nozzle inlet pressure, assist steam quantity and droplet size have large influence upon two-phase flow nozzle performance. Some typical photographs of Laval nozzle exit flow are shown.
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