Effect of Magnetic Flux Density on Control Range of Output Power of a Commercial-Scale, Nonequilibrium MHD Generator / 商用規模非平衡MHD発電機の出力調整幅に及ぼす印加磁束密度の効果
- Resource Type
- Journal Article
- Authors
- Riku Nakayasu; Ryo Sasaki; Takayasu Fujino; Yoshihiro Okuno; 仲安 陸; 佐々木 亮; 奥野 喜裕; 藤野 貴康
- Source
- 電気学会論文誌B(電力・エネルギー部門誌) / IEEJ Transactions on Power and Energy. 2023, 143(12):652
- Subject
- applied magnetic flux density
commercial-scale nonequilibrium MHD generator
ionization instability
magnetohydrodynamic numerical analysis
output power control
出力調整
印加磁束密度
商用規模非平衡MHD発電機
電磁流体解析
電離不安定性
- Language
- Japanese
- ISSN
- 0385-4213
1348-8147
Time-dependent, two-dimensional (r-z) magnetohydrodynamic numerical analysis is conducted for a commercial-scale, nonequilibrium MHD generator with a thermal input of 1000 MW to clarify the effect of externally applied magnetic flux density on the control range of output power by adjusting seed fraction and load voltage. The output power is controlled more widely by lowering magnetic flux density, although the isentropic efficiency is forced to be lower. This is because both the operation ranges of seed fraction and load voltage yielding a stable plasma become wide for low magnetic flux density.