摘要
利用模块化建模的方法建立了由单轴燃气轮机和双压余热锅炉所组成的燃气-蒸汽联合循环机组及进气冷却系统的数学模型。量化分析了进气温度对燃气-蒸汽联合循环性能的影响,以及采用溴化锂制冷和喷雾技术冷却进气对燃气-蒸汽联合循环机组性能的改善程度。结果表明,两种进气冷却方式都能有效提高联合循环机组的输出功率和发电效率。我国气候干燥的北方地区以喷雾冷却为宜而温湿的南方地区以溴化锂吸收式制冷为宜。
This paper establishes a theoretical model of inlet air cooling system and gas-steam combined cycle that is made of this single-shaft gas turbines and dual pressure non-reheat HRSG. Base on the theoretical model, We do some quantitative analysis as follows： First, the effect of inlet temperature on gas-steam cycle unit＇s performance; second, the degree of improvement of gas-steam cycle unit＇s performance after using lithium bromide absorption refrigeration group Cooling or spray cooling to cool the intake air of gas turbine. The results show that in North area of China, because of dry climate, the scheme of spray cooling is the first choice. But in the south area, the climate is humid, using the lithium bromide absorption refrigeration is a more appropriate way of cooling.
出处
《船电技术》
2015年第4期42-44,共3页
Marine Electric & Electronic Engineering
关键词
燃气-蒸汽联合循环
进气温度
溴化锂吸收式制冷
喷雾冷却
gas-steam combined cycle
inlet air cooling
lithium bromide absorption refrigeration
spraycooling
