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End region and current consolidation effects upon the performance of an MHD channel for the ETF conceptual designIt is noted that operating conditions which yielded a peak thermodynamic efficiency (41%) for an EFT-size MHD/steam power plant were previously (Wang et al., 1981; Staiger, 1981) identified by considering only the active region (the primary portion for power production) of an MHD channel. These previous efforts are extended here to include an investigation of the effects of the channel end regions on overall power generation. Considering these effects, the peak plant thermodynamic efficiency is found to be slightly lowered (40.7%); the channel operating point for peak efficiency is shifted to the supersonic mode (Mach number of approximately 1.1) rather than the previous subsonic operation (Mach number of approximately 0.9). Also discussed is the sensitivity of the channel performance to the B-field, diffuser recovery coefficient, channel load parameter, Mach number, and combustor pressure.
Document ID
19820034354
Document Type
Conference Paper
Authors
Wang, S. Y. (NASA Lewis Research Center Cleveland, OH, United States)
Smith, J. M. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 10, 2013
Publication Date
January 1, 1982
Subject Category
PLASMA PHYSICS
Report/Patent Number
AIAA PAPER 82-0325
Meeting Information
Aerospace Sciences Meeting(Orlando, FL)
Distribution Limits
Public
Copyright
Other