EXERGY EFFICIENCY ANALYSIS OF LIGNITE-FIRED STEAM GENERATOR
作者: Drenusha Krasniqi Alidema Risto V. Filkoski Marigona Krasniqi
刊名: Thermal Science, 2018, Vol.22 (5), pp.2087-2101
来源数据库: Society for Thermal Engineers of Serbia
DOI: https://doi.org/10.2298/TSCI180131265K
关键词: Coal-fired power plantSteam generatorExergyEnergy efficiencyCombustionHeat transfer
原始语种摘要: The operation of steam generators and thermal power plants is commonly evaluated on a basis of energy analysis. However, the real useful energy loss cannot be completely justified only by the First law of thermodynamics, since it does not differentiate between the quality and amount of energy. The present work aims to give a contribution towards identification of the sources and magnitude of thermodynamic inefficiencies in utility steam generators. The work deals with a parallel analysis of the energy and exergy balances of a coal-fired steam generator that belongs to a 315 MWe power generation unit. The steam generator is designed for operation on low grade coal - lignite with net calorific value 6280 to 9211 kJ/kg, in a cycle at 545 °C/177.4 bar, with feed water temperature 251 °C,...
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关键词翻译
关键词翻译
  • inefficiency 低效率
  • exergy 
  • justified 两端
  • option 选择
  • operation 运算
  • generator 振荡器发生器
  • towards 朝向
  • combustion 燃烧
  • energy 能量
  • analysis 分析