| 基于熵分析法的回热系统通用损分布矩阵 |
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| 引用本文： | 于淑梅,曾庆华,张向辉,李金磊.基于熵分析法的回热系统通用损分布矩阵[J].汽轮机技术,2009,51(2). |
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| 作者姓名： | 于淑梅 曾庆华 张向辉 李金磊 |
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| 作者单位： | 华北电力大学,能源动力工程学院,保定,071003 |
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| 摘 要： | 熵分析法的核心就是求取过程的熵产,而熵产的大小体现着过程不可逆程度.在回热系统中,节流、有限温差传热以及摩擦与扰动等过程都是不可逆过程,它们必然会导致做功能力损失即(火用)损,而这损失可以利用Gouy-Stodola关系式由这些过程所造成的熵产转化获得.针对回热系统的(火用)损分布进行讨论,在划分单一回热加热器为独立系统后,对系统采用黑箱分析,对方程进行水侧定流量法处理,通过Gouy-Stodola关系式转化最终获得通用炯损分布矩阵方程.
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| 关 键 词： | 熵分析法 回热系统 (火用)损分布 矩阵 |
The General Matrix for Exergy Loss Distribution in Regenerative Systems Based on Entropy Analysis |
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| YU Shu-mei,ZENG Qing-hua,ZHANG Xiang-hui,LI Jin-lei.The General Matrix for Exergy Loss Distribution in Regenerative Systems Based on Entropy Analysis[J].Turbine Technology,2009,51(2). |
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| Authors: | YU Shu-mei ZENG Qing-hua ZHANG Xiang-hui LI Jin-lei |
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| Affiliation: | Faculty of Energy and Power Engineering;North China University of Electric Power;Baoding 071003;China |
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| Abstract: | The core of entropy analysis is to get the entropy production of the process,and the number of entropy production embodies the level of the irreversibility for the process.In the regenerative systems,the main irreversible processes are throttling,heat transferring of the limited temperature difference,friction and turbulence,which will inevitably lead to the loss of power capability that is exergy loss,which can be obtained,using Gouy-Stodola correlations,by transforming entropy production created by those ... |
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| Keywords: | entropy analysis regenerative systems exergy loss distribution matrix |
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