不同装机容量火电机组能效随不同量纲参数变化的研究

根据能够适用于计算任意多元组合扰动对于结构发生变化的热力系统经济性影响的能效分析模型,使用MathCAD软件,编制出用于预测在任意多元组合扰动下的热力系统能效变化幅度和分布规律的实用程序,通过对600 MW火电机组的实例计算验证了该程序的正确性,以600 MW、660 MW、1 000 MW三个机组为例进行了计算,借助该程序分析预测了不同装机容量火电机组能效在不同工况下随重要局域性和广域性多元组合扰动的变化规律,为火电机组优化设计、经济运行以及检修改造提供参考。

Energy efficiency research for thermal power units of different installed capacity under different dimensional parameters

Based on the energy-efficiency analysis model,which applied to calculate the economic impact of the random multivariate disturbances to the thermodynamic system which had a dynamic structures,the functional program,which was used to predict the rangeability and the distribution law of energy efficiency for thermodynamic system under random multivariate disturbances,was established with MathCAD software.It was verified to be correct by the calculation of a 600 MW thermal power unit.And then the energy efficiency relative change of 600 MW,660 MW,1 000 MW three units was calculated to predict the energy efficiency variation for thermal power units of different installed capacity in different conditions with several important local and euroky disturbances through the use of this program,so the reference for the optimal design,economic operation and maintenance alteration of thermal power generating units were provided.