High enthalpy extraction from a helium-driven disk magnetohydrodynamic generator

Journal Article · Thu Jun 01 04:00:00 EDT 1989 · J. Propul. Pow.; (United States)

DOI:https://doi.org/10.2514/3.23160· OSTI ID:5681670

Harada, Nobuhiro; Yamasaki, Hiroyuki; Shioda, Susumu

A power-generation experiment with a disk MHD generator driven by potassium-seeded helium was made. High values of the output power density and of the enthalpy extraction have been obtained. For helium temperatures between 2200 and 2400 K, an output power density of 120 MW/cu m and an enthalpy extraction of 20.4 percent have been measured. The measured static pressure distribution has shown that strong gasdynamical shock has not been observed in the MHD channel under this high enthalpy extraction. It has been suggested that the disk generator performances can be predicted by one-dimensional calculations with ideal plasma parameters for the case of no negative potential region at the channel inlet and no shock formation in the disk generator. 11 refs.

• Research Organization: Tokyo Institute of Technology, Yokohama (Japan)
• OSTI ID: 5681670
• Journal Information: J. Propul. Pow.; (United States), Journal Name: J. Propul. Pow.; (United States) Vol. 5; ISSN JPPOE
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
300102* -- MHD Generators-- Performance & Testing
ALKALI METALS
DIRECT ENERGY CONVERTERS
EFFICIENCY
ELEMENTS
ENTHALPY
EQUATIONS
FLUIDS
GASES
HALL EFFECT
HELIUM
METALS
MHD GENERATORS
NONMETALS
PERFORMANCE
PHYSICAL PROPERTIES
POTASSIUM
POWER
PREDICTION EQUATIONS
RARE GASES
SHOCK WAVES
THERMODYNAMIC PROPERTIES