摘要
为提高能源综合利用率,将微型燃气轮机(MGT)和有机工质朗肯循环(ORC)/喷射制冷循环(ERC)结合,构建燃气-有机工质联合循环系统。以两种燃气-有机工质联合循环为研究对象,即燃气-有机工质发电(MGT+ORC)、燃气-有机工质制冷(MGT+ERC),分析了微型燃气轮机设计工况下燃气-有机工质联合循环特性及采用5种有机工质时联合循环性能变化规律。结果表明:MGT+ORC和MGT+ERC可显著提高联合循环系统输出功率和效率,对于MGT+ORC而言,R123是最佳工质,具有最大发电能力,对MGT+ERC而言,R600是最佳工质,具有最大制冷能力;在MGT+ORC联合循环中微型燃气轮机负荷从100%降到45%时,采用R123工质的ORC系统输出电功率从20.9 kW下降到14.3 kW。
In order to improve the comprehensive utilization efficiency of energy,two types of combined cycle,namely MGT+ORC and MGT+ERC,were proposed as the research objects.The characteristics of MGT-organic cycle combined cycle under design condition were analyzed,and the effect of 5 different working fluids on combined systems was studied.The results show that MGT+ORC and MGT+ERC can significantly improve the output power and thermal efficiency of combined cycles.For the effect of different working fluids,R123 is the most suitable working fluid for MGT+ORC with the maximum electricity output power,and R600 is the most suitable working fluid for MGT+ERC with the maximum cooling capacity.When the load of micro gas turbine is reduced from 100% to 45% in MGT+ORC combined cycle,the output power of ORC system using R123 is reduced from 20.9 kW to 14.3 kW.
作者
吴旺松
薄泽民
廖锷
翁一武
WU Wang-song;BO Ze-min;LIAO E;WANG Yi-wu(Power Construction Corporation of China,Zhongnan Engineering Co.Ltd.,Changsha,China,Post Code:410014;Key Laboratoiy of Power Machinery and Engineering,Shanghai Jiao Tong University,Shanghai,China,Post Code:200240)
出处
《热能动力工程》
CAS
CSCD
北大核心
2020年第12期19-25,共7页
Journal of Engineering for Thermal Energy and Power
基金
国家自然科学基金(51376123)。
关键词
联合循环
微型燃气轮机
有机工质循环
喷射制冷循环
性能分析
combined cycle
micro gas turbine(MGT)
organic Rankine cycle(ORC)
ejector refrigeration cycle(ERC)
performance analysis
