| 凝汽机组背压变化对煤耗影响计算模型的研究 |
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| 引用本文： | 李永华,李玉辉,闫顺林.凝汽机组背压变化对煤耗影响计算模型的研究[J].电力科学与工程,2009,25(2). |
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| 作者姓名： | 李永华 李玉辉 闫顺林 |
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| 作者单位： | 华北电力大学,能源与动力工程学院,河北,保定,071003 |
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| 摘 要： | 针对试验法、热力学方法和常规热平衡方法在工程上应用的局限性,结合火电机组热力系统汽水分布通用矩阵方程、比内功方程、循环吸热量方程及发电标准煤耗率的计算公式,构建了凝汽式火电机组背压变化对发电标准煤耗率影响的通用计算模型.应用表明,该模型使用便捷、计算精度高、不限于给水泵驱动方式,适用于任意结构形式的凝汽式火电机组和机组的不同运行工况,尤其适用于作为计算机处理的教学模型.
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| 关 键 词： | 凝汽式汽轮机 背压变化 发电煤耗率 通用计算模型 |
General Calculation Model for the Influence of Exhaust Pressure on Dynamoelectric Coal Consumption Rate of Condensing Unit |
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| Li Yonghua,Li Yuhui,Yan Shunlin.General Calculation Model for the Influence of Exhaust Pressure on Dynamoelectric Coal Consumption Rate of Condensing Unit[J].Power Science and Engineering,2009,25(2). |
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| Authors: | Li Yonghua Li Yuhui Yan Shunlin |
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| Affiliation: | School of Energy and Power Engineering;North China Electric Power University;Baoding 071003;China |
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| Abstract: | Based on the steam-water distribution general matrix equation of thermal system for the coal-fired power unit,specific internal work equation,cycle heat absorption equation and the calculation formula of dynamoelectric standard coal consumption rate,the general calculation model on the influence of exhaust pressure change on coal consumption of condensing unit is established by a strict mathmatic derivation to improve the deficiency of existing test,thermodynamic and the normal energy balance methods.Its us... |
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| Keywords: | condensing steam turbine exhaust pressure dynamoelectric coal consumption rate general calculation model |
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