摘要
为揭示直接空冷机组热力系统的不可逆损失的机理和挖掘其节能潜力,对600MW直接空冷机组的热力系统进行了分析和节能评价。结果表明:600MW直接空冷机组的目的效率为39.08%,总损失占60.92%。凝汽器的损系数为6.11%,而相同容量水冷机组的凝汽器损系数仅为2.23%,因此,必须对凝汽器采取节能措施,提高直接空冷机组的整体效率。
In order to reveal mechanisms of the irreversible exergy loss of the thermodynamic system of a direct air-cooled unit and explore the energy saving potential, exergy analysis and energy-saving assessment were performed to the thermodynamic system of a 600MW direct air-cooled unit. The results show that： the exergy efficiency of 600MW direct air- cooled units is 39.08%, the total exergy loss accounts for 60.92%. The exergy loss coefficient of the condenser of the unit is 6.11% , and the same item of water cooled units of the same capacity is only 2.23%, so some energy-saving measures must be taken for the condenser to improve exergy efficiency of direct air-cooling units.
出处
《汽轮机技术》
北大核心
2011年第2期107-109,共3页
Turbine Technology
关键词
600MW
直接空冷机组
热力系统
分析
节能
600MW
direct air-cooled unit
thermodynamic system
exergy analysis
energy-saving
