Accession Number : AD0697364

Title :   PERFORMANCE CHARACTERISTICS OF A COMBUSTION-DRIVEN MAGNETOGASDYNAMIC POWER GENERATOR,

Corporate Author : STANFORD UNIV CALIF INST FOR PLASMA RESEARCH

Personal Author(s) : Reseck,Karl G.

Report Date : AUG 1966

Pagination or Media Count : 231

Abstract : A combustion-driven magnetogasdynamic generator was designed, developed and operated to obtain direct-current electrical power generation data under thermally steady-state conditions. Thirteen pair of water-colled molybdenum electrodes insulated by MgO brick formed the walls of the gas duct. Transients in generator electrical resistance and effectiveness of electrode segmentation are demonstrated to last significantly longer than the thermal transients. Generator-resistance transients are found to be localized in the regions near the electrodes. Generator-loading data were obtained for segmented, continuous and Hall electrode connections. Two gas temperatures and five levels of magnetic induction were used. An analytical model of the generator is developed which considers the gas to be a one-dimensional core enclosed by four viscous and thermal boundary layers. Leakage currents are allowed to flow in the boundary layers and in the regions of the interface between gas and walls. Using two selected leakage resistances, predicted core performance agrees well with the appropriate test data. (Author)

Descriptors :   (*MAGNETOHYDRODYNAMIC GENERATORS, PERFORMANCE(ENGINEERING)), DIRECT CURRENT, COMBUSTION, GAS FLOW, MAGNETIC FIELDS

Subject Categories : Electric Power Production and Distribution

Distribution Statement : APPROVED FOR PUBLIC RELEASE