等离子体
磁流体驱动
磁流体发电机
材料科学
惰性气体
热力学
原子物理学
机械
磁流体力学
物理
复合材料
量子力学
作者
Manabu Tanaka,Tomoyuki Murakami,Yoshihiro Okuno
出处
期刊:IEEE Transactions on Plasma Science
[Institute of Electrical and Electronics Engineers]
日期:2014-12-01
卷期号:42 (12): 4020-4025
被引量:22
标识
DOI:10.1109/tps.2014.2365591
摘要
We describe magnetohydrodynamic power generation experiments with seed-free high-temperature inert gas plasma using a linear-shaped Faraday-type generator driven by a shock-tunnel facility. The influence of inlet total temperature between 6500 and 9000 K on the plasma characteristics and its influence on generator performance are shown. By increasing the inlet total temperature, streaky and unstable plasma, characterized by large fluctuations in power output, is transformed into homogeneous and stable plasma, providing stabilized and improved power output. A quasi-1-D numerical simulation suggests that the plasma in the generator undergoes recombination when the inlet total temperature is high, which might be a factor in plasma stabilization. At the optimum load resistance, the enthalpy extraction ratio is improved to 12.9%; the optimum load resistance decreases as inlet total temperature is increased by the increase in electrical conductivity.
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