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太阳能发电塔的设计及热力学分析
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作者 白天夫 《中国西部科技》 2011年第36期36-36,8,共2页
太阳能烟囱发电站也称作"太阳能烟囱"或者"太阳能塔",她是利用太阳能空气集热板和中央的上升气流管相结合来产生一个太阳能诱导对流来驱动压力级汽轮机进行发电。她是绿色能源之一,太阳通过一个巨大的半透明集热器... 太阳能烟囱发电站也称作"太阳能烟囱"或者"太阳能塔",她是利用太阳能空气集热板和中央的上升气流管相结合来产生一个太阳能诱导对流来驱动压力级汽轮机进行发电。她是绿色能源之一,太阳通过一个巨大的半透明集热器屋顶来加热空气,由于密度差的原因在集热棚里创造了暖空气和相对冷的环境空气,气流呈放射状地进入开放式的管道里,按着竖直方向从集热棚的中心上升,气流驱动安装在管道底部的汽轮机进行发电。 展开更多
关键词 太阳能上升气流塔 热流体 风轮机 教育用模型
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A MULTIYEAR LAGS INPUT-HOLDING-OUTPUT MODEL ON EDUCATION WITH EXCLUDING IDLE CAPITAL 被引量:1
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作者 Xue FU Xikang CHEN 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2009年第2期159-170,共12页
This paper develops a multi-year lag Input-Holding-Output (I-H-O) Model on education with exclusion of the idle capital to address the reasonable education structure in support of a sustainable development strategy ... This paper develops a multi-year lag Input-Holding-Output (I-H-O) Model on education with exclusion of the idle capital to address the reasonable education structure in support of a sustainable development strategy in China. First, the model considers the multiyear lag of human capital because the lag time of human capital is even longer and more important than that of fixed capital. Second, it considers the idle capital resulting from the output decline in education, for example, student decrease in primary school. The new generalized Leonitief dynamic inverse is deduced to obtain a positive solution on education when output declines as well as expands. After compiling the 2000 I-H-O table on education, the authors adopt modifications-by-step method to treat nonlinear coefficients, and calculate education scale, the requirement of human 2020. It is found that structural imbalance of human development. capital, and education expenditure from 2005 to capital is a serious problem for Chinese economic 展开更多
关键词 Education human capital idle capital Input-Holding-Output model multi-year lag.
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