1978
DOI: 10.1002/er.4440020304
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Effect of nonideal conditions on the electrical performance of faraday MHD generators

Abstract: The effect of nonideal conditions on the current flow in a MHD generator has been investigated by two‐dimensional analysis in terms of internal resistance, Hall voltage and uniformity of current distribution. In particular, the effects of (a) temperature profile along the Faraday direction in the plasma, (b) current bunching on cathode surfaces due to phenomena like arc spots, and (c) electrical leakage between adjacent electrodes due to finite resistance of the insulator segments are investigated. the results… Show more

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Cited by 3 publications
(2 citation statements)
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“…The change in m, say from 8 to 7, affects the gasdynamic voltage drop estimation by about 26 per cent which is practically the same for different values of Po in the range studied. In order to understand the above dependence of gasdynamic voltage drop on m physically, we look at various velocity profiles generated by choosing different values of m. As studied by various workers (Lengyel, 1969;Jayakumar et al, 1978;Sodha et al, 1979), one interprets the exponent l / m used to describe the velocity profile as a direct measure of boundary layer thickness. If l / m increases (m decreases), the velocity profile becomes less steep giving rise to a thicker boundary layer and vice versa.…”
Section: Resultsmentioning
confidence: 99%
“…The change in m, say from 8 to 7, affects the gasdynamic voltage drop estimation by about 26 per cent which is practically the same for different values of Po in the range studied. In order to understand the above dependence of gasdynamic voltage drop on m physically, we look at various velocity profiles generated by choosing different values of m. As studied by various workers (Lengyel, 1969;Jayakumar et al, 1978;Sodha et al, 1979), one interprets the exponent l / m used to describe the velocity profile as a direct measure of boundary layer thickness. If l / m increases (m decreases), the velocity profile becomes less steep giving rise to a thicker boundary layer and vice versa.…”
Section: Resultsmentioning
confidence: 99%
“…This probably arises from the different economic standards and costing procedure. Figure 30 summarises the cost of electricity from open cycle MHD steam power plant with different parameters (Jayakumar et al 1978). If the fuel cost is less than 15 roubles/unit, the thermal plant is more economical (region A, curve 6) whereas if the fuel cost is higher than 15 roubles/unit, MHD is more economical (region B, curve 4).…”
Section: Ussr Cost Estimatesmentioning
confidence: 99%