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首页> 外文会议>ASME(American Society of Mechanical Engineers) International Mechanical Engineering Congress: Advanced Energy Systems Division; 20031115-20031121; Washington,DC; US >EXERGOECONOMIC ASSESSMENT OF THE PERFORMANCE DEGRADATION IN A POWER PLANT AT FULL AND PARTIAL LOAD
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EXERGOECONOMIC ASSESSMENT OF THE PERFORMANCE DEGRADATION IN A POWER PLANT AT FULL AND PARTIAL LOAD

机译：全负荷和部分负荷下电厂性能退化的经济经济评估

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摘要

Power plant performance deteriorates during operation due to degradation of plant components. This paper deals with the calculation of costs associated with the degradation of selected plant components in a 400 MW pulverized coal-fired subcritical power plant at full and partial load. A commercial process simulator (Gate/Cycle) is used to study the thermodynamic behavior of the plant at various loads. In several case studies, the performance of one or more plant components is deteriorated by altering performance factors (i.e., fouling factor for heat exchangers and isentropic efficiency for turbomachinery). An exergy analysis and a detailed exergoeconomic evaluation are conducted for each case study. Selected exergoeconomic variables defined for each plant component assist in identifying the location of degradation and its effect on the performance and the product cost for single components and the total plant. Such an approach can be applied to process monitoring of a real plant and provides useful information for the diagnosis and assessment of deteriorated power plant performance.
机译：由于电厂部件的退化，电厂的运行性能会降低。本文涉及在满负荷和部分负荷下与400兆瓦粉煤燃烧亚临界电厂中所选电厂组件的退化相关的成本计算。商业过程仿真器（门/循环）用于研究各种负载下工厂的热力学行为。在一些案例研究中，一种或多种工厂组件的性能会因性能因子的改变而降低（即，热交换器的结垢因子和涡轮机械的等熵效率）。每个案例研究都进行了火用分析和详细的能效经济评估。为每个工厂组件定义的选定的人类经济变量有助于确定降解的​​位置及其对单个组件和整个工厂的性能和产品成本的影响。这样的方法可以应用于真实工厂的过程监控，并为诊断和评估电厂性能下降提供有用的信息。

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