摘要
发展背压式机组是今后热电联产项目的主要趋势,因此急需更准确的经济性指标来评价不同热电联产项目之间的性能差异。基于方法,通过分析案例,提出了耗、总效率、总煤耗率3个指标,并将三者与基于热量法的经济性指标进行对比,结果显示方法能够综合反映汽轮机性能及全厂能量利用水平。这3个指标可以为热电联产项目的优化及横向比较提供参考。
To develop back-pressure steam turbine is the main direction of combined heat and power generation project,and economic indicators with higher accuracy are required to evaluate performance differences among different projects.Based on exergy method and case analysis,exergy rate,total exergy efficiency and total coal consumption rate are proposed.Compared with economic indicators based on heat method,these three indicators can comprehensively reflect the performance of steam turbine and the energy utilization level of the whole power plant.These three indicators can provide reference for optimization of combined heat and power generation project and their horizontal comparison.
作者
蔡小燕
杨红霞
CAI Xiaoyan;YANG Hongxia(Shanghai Turbine Works Co.,Ltd.,Shanghai 200240,China)
出处
《热力透平》
2019年第4期239-242,264,共5页
Thermal Turbine
关键词
背压式汽轮机
热电联产
性能指标
热量法
方法
back-pressure steam turbine
combined heat and power generation
performance indicators
heat method
exergy method
