Abstract
A closed loop experimental facility for continuous MHD power generation has been constructed at Tokyo Institute of Technology. A closed loop argon gas circulation including a heat recovery, an electrical gas heating, and a supersonic transition has been carried out for five days without MHD power generation. In this paper, streamwise profiles of an argon gas temperature and a pressure, an energy efficiency of a recuperator are examined. Thermal performances of a high temperature noble gas heater consisting of three electrical heaters are clarified. An argon gas peak temperature of 1317K is achieved by controlling input currents individually for three electrical heaters (7.65kA for a heater No.1, 6.67kA for a heater No.2, 5.60kA for a heater No.3) under conditions of the pressure of 0.253MPa and a flow rate of 500Nm/h (a mass flow rate of 0.248 kg/sec). The energy efficiency of the recuperator is 92%. The high-energy efficiency indicates efficient heat recovery performance of the recuperator.
Published Version
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