Measurements of plasma and fluid properties in closed cycle disk generator

Conference · Sun Dec 31 04:00:00 EST 1995

OSTI ID:254632

Nakamura, Hajime; Noma, A; Matsuda, M ^[1]

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1. Tokyo Institute of Technology, Yokohama (Japan); and others

Plasma and fluid properties are measured in a closed cycle disk MHD generator under high enthalpy extracted conditions. Special attention is devoted to measure the exit total pressure and the Faraday current in order to estimate the isentropic efficiency and the effective Hall parameter. The maximum isentropic efficiency attained in the present experiments is 46% owing enthalpy extraction ratio of 31.6%. The maximum value of effective Hall parameter obtained in the present experiments is 2 {approximately}3 which is lower than the ideal values. It is necessary for us to make clear the reason for the lower values of the effective Hall parameter and to make effort at enhancing it in order to achieve the sufficiently high isentropic efficiency.

• OSTI ID: 254632
• Report Number(s): CONF-950697--
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
CLOSED-CYCLE MHD GENERATORS
DISK MHD GENERATORS
ENTHALPY
FARADAY CURRENT
HALL EFFECT
MAGNETIC FIELDS
NON-EQUILIBRIUM PLASMA