Two-Phase Flow Studies in Mercury-Air Liquid Metal MHD Generators
A two phase liquid metal MHD system consisting of Mercury and Air is built to study MHD Generator behaviour at high void fractions. Average void fraction, pressure, and voltage fluctuations and electrical continuity have been studied. It is found that all the frequency of fluctuations of pressure and voltage are within 100 Hz. There is an increase in the rate of electrical discontinuity between electrodes with increase in void fraction. Gamma ray technique using Cs-137 and Co-60 satisfactorily measures void fraction.
KeywordsVoid Fraction Pressure Fluctuation Open Circuit Voltage Slug Flow Voltage Fluctuation
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