【作者】 张莉娜；

【导师】 王松岭； 张学镭；

【作者基本信息】 华北电力大学（河北） ， 热能工程， 2010， 硕士

【摘要】 针对燃气–蒸汽联合循环性能随环境温度升高而降低的问题,设计了一种可以利用余热的新型燃气轮机进气冷却系统,采用热管型溴化锂吸收式制冷机回收余热锅炉排烟废热制冷,以降低燃气轮机入口空气温度。利用Aspen Plus软件对燃用天然气的燃气–蒸汽联合循环进行了模拟,分析了进气温度变化对联合循环性能的影响。利用VB语言编制了热管型溴冷机的设计计算软件,并对进气冷却系统进行了变工况及技术经济性分析。结果表明,加装热管型燃机进气冷却系统,可使压气机入口气温下降10~15℃,联合循环性能明显提高,且随着烟气温度的增加,进气温降幅度也不断增大。更多还原

【Abstract】 With the aim to probe into the issue on performances of the gas turbine combined cycle, appearing to be a drop whilst an increment of ambient temperature, a novel inlet air cooling technology for gas turbine combined cycle using exhaust heat was presented. Noteworthy, the refrigerating process on the exhaust heat recovery via Lithium Bromide absorption chiller with additional heat pipe outfit would be implemented to the reduction on the compressor inlet air temperature. The model for simulation of the combined cycle plant fuelled by natural gas was developed using the Aspen Plus software. Moreover, based on this model, the atmosphere temperature effect on the combined cycle performance was analyzed. And then, the calculation software for design of the new chiller was programmed with VB programming language. At last, the performance analysis of different working conditions and the technical & economic analysis were carried out. The results indicate that, with the gas turbine inlet air cooling system with heat pipe, the inlet air temperature makes an apparently decline from 10 to 15 centigrade, the power output of the GTCC increases remarkably and the inlet air temperature amplitude goes a steady increase accompany with increases in gas temperature.更多还原