摘要
对火力发电厂能损分析中的一些重要问题进行了探讨 ,包括能损分析比较原则、应达值及基准工况的选取、求解湿蒸汽焓值的改进方法以及母管制机组中的义务分配等。提出的以实际运行工况为基准的偏差分析方法 ,避免了对变工况模型的依赖以及由于模型不完善可能导致的误差 ,具有真实反映机组性能的优点。最后介绍了一种简便易行的能损分析系统的实现方案 ,并展示了某 10
Some important issues in the development of performance evaluation of thermal power plants are discussed, including the criteria for performance comparison, the selection of ideal load case and corresponding performance values, the improved method for the determination of wet steam enthalpy in the last stages of steam turbine and so on. A new difference analysis method is put forward. Its idea is to use the real operation case as comparison standard rather than using a conceived ideal case and avoids the dependence on suspicious off-design model. Finally, the paper introduced a practical engineering scenario for the implementation of performance evaluation system in thermal power plant and the analysis results of a 100MW unit were shown.
出处
《汽轮机技术》
北大核心
2001年第4期222-225,共4页
Turbine Technology
关键词
能损
偏差分析
火电厂
性能
energy loss
difference analysis
thermal power plant
