HIGH EFFICIENCY MHD POWER GENERATION WITHOUT USING ALKALIMETAL

无需使用碱金属即可实现高效率 MHD 发电

基本信息

  • 批准号:
    08455131
  • 负责人:
  • 金额:
    $ 1.54万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
  • 财政年份:
    1996
  • 资助国家:
    日本
  • 起止时间:
    1996 至 1998
  • 项目状态:
    已结题

项目摘要

High efficiency electrical power generation can be possible by using the concept of closed cycle magnetohydrodynamic (MHD) electrical power generation. We have been proposing to use xenon as seed material Instead of alkali metal, which gives rise to bad environmental influence and to reduction of system reliability. So far, as a result of optimization of generator design and operating conditions) although helium/xenon working gas can provide significantly high generator performance as is obtained with conventional alkali metal seed, it is important to keep plasma in a stable condition in order to achieve high performance. Next, we have been studying the relation of plasma stability and generator performance by means of 2-dimansional numerical simulation. It has been clarified that helium/xenon plasma is inherently unstable and non-uniform. This instability produces strong decrease in gas velocity and increase in gas pressure, which result in significant degradation of generator performance. However, if we choose generator design and operating conditions so as to prevent from such unfavorable effects even if the plasma is unstable and non-uniform, performance successfully recovers to high value as obtained with stable plasma using alkali metal seed.Above results obtained by this scientific project have been presented many international and domestic conferences and symposiums. We receive encouraging discussions and comments as new movement in closed cycle MHD.We also are suggested to continue to perform experimental demonstration of the present concept of helium/xenon working medium. We do have a plan to move on along this suggestion.
通过使用闭合循环磁流体(MHD)发电的概念,可以实现高效率的发电。我们一直建议用氙气代替碱金属作为种子材料,这会对环境造成不良影响,并降低系统的可靠性。到目前为止,由于发生器设计和操作条件的优化),尽管氦/氙气工作气体可以提供与传统碱金属种子一样高得多的发生器性能,但为了获得高性能,保持等离子体在稳定的条件下是重要的。接下来,我们通过二维数值模拟的方法研究了等离子体稳定性与发电机性能的关系。已有研究表明,氦/氙等离子体本质上是不稳定和不均匀的。这种不稳定性导致气体速度的急剧下降和气体压力的增加,从而导致发电机性能的显著下降。然而,如果我们选择发电机的设计和运行条件,以防止这种不利的影响,即使等离子体是不稳定和不均匀的,性能也能成功地恢复到使用碱金属种子的稳定等离子体所获得的高值。这一科学计划所取得的成果已在国内外许多会议和研讨会上发表。作为闭合循环MHD的新运动,我们收到了令人鼓舞的讨论和评论。我们还被建议继续进行当前氦/氙气工作介质概念的实验演示。我们确实有计划继续推进这一建议。

项目成果

期刊论文数量(36)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Nob.HARADA, et al.: "Application of MHD Generator as Pulsed Power Supply" 1998 International Symposium on Advanced Energy Technology. 479-486 (1998)
Nob.HARADA 等人:“MHD 发生器作为脉冲电源的应用”1998 年先进能源技术国际研讨会。
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    0
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  • 通讯作者:
Nob.Harada, K.Takayanagi: "Application of MHD Generator as Pulsed Power Supply" 1998 International Symposium on Advanced Energy Technology. 479 (1998)
Nob.Harada、K.Takayanagi:“MHD 发生器作为脉冲电源的应用”1998 年先进能源技术国际研讨会。
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    0
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Nob.HARADA,et al.: "Recent Research Topics on MHD Conversion" 1998 International Symposium on Advanced Energy Technology. 269-276 (1998)
Nob.HARADA 等人:“MHD 转换的最新研究主题”1998 年先进能源技术国际研讨会。
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    0
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Nob.HARADA: "Status of CCMHD Research at Nagaoka University of Technology" '97Symposium on Advanced Research of Energy Technology. (1997)
Nob.HARADA:“长冈工业大学 CCMHD 研究现状”97 能源技术高级研究研讨会。
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  • 影响因子:
    0
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  • 通讯作者:
小池貴士、原田信弘: "MHD発電機へのHe/Xe作動気体の適用" 新エネルギー・環境研究会資料. FTE-98-21. 1-6 (1998)
Takashi Koike、Nobuhiro Harada:“He/Xe 工作气体在 MHD 发生器中的应用”新能源与环境研究组材料。
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    0
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HARADA Nobuhiro其他文献

HARADA Nobuhiro的其他文献

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{{ truncateString('HARADA Nobuhiro', 18)}}的其他基金

Challenge to compact, intense, and repetitive light source by using liquid metal
使用液态金属挑战紧凑、强烈和重复的光源
  • 批准号:
    24656184
  • 财政年份:
    2012
  • 资助金额:
    $ 1.54万
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
Epigenetic regulation of aromatase gene by changes of chromatin structure
染色质结构变化对芳香酶基因的表观遗传调控
  • 批准号:
    22591019
  • 财政年份:
    2010
  • 资助金额:
    $ 1.54万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Metabolic regulation of estrogen-synthesizing enzymes by post-translational modification
翻译后修饰对雌激素合成酶的代谢调节
  • 批准号:
    18591034
  • 财政年份:
    2006
  • 资助金额:
    $ 1.54万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Study on the protection against estrogen-dependent cancer
预防雌激素依赖性癌症的研究
  • 批准号:
    12213132
  • 财政年份:
    2000
  • 资助金额:
    $ 1.54万
  • 项目类别:
    Grant-in-Aid for Scientific Research on Priority Areas
Experiments on High-Efficiency MHD Generation without Alkali Metal Seed
无碱金属种子高效磁流体产生实验
  • 批准号:
    11450109
  • 财政年份:
    1999
  • 资助金额:
    $ 1.54万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Analysis of aromatase/estrogen system in the age-related diseases by developmental engineering techniques
利用发育工程技术分析年龄相关疾病中的芳香酶/雌激素系统
  • 批准号:
    11470228
  • 财政年份:
    1999
  • 资助金额:
    $ 1.54万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Study on health
健康研究
  • 批准号:
    10557200
  • 财政年份:
    1998
  • 资助金额:
    $ 1.54万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Molecular mechanism of aberrant expression of estrogen synthetase in the age-related diseases
年龄相关性疾病中雌激素合成酶异常表达的分子机制
  • 批准号:
    09671080
  • 财政年份:
    1997
  • 资助金额:
    $ 1.54万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Analysis on the transcriptional regulation mechanism of aromatase gene
芳香酶基因转录调控机制分析
  • 批准号:
    02680163
  • 财政年份:
    1990
  • 资助金额:
    $ 1.54万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)

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Mechanical metamaterial triboelectric nanogenerator for high-efficiency power generation from microload
用于微负载高效发电的机械超材料摩擦纳米发电机
  • 批准号:
    23H01363
  • 财政年份:
    2023
  • 资助金额:
    $ 1.54万
  • 项目类别:
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