恒温热源不可逆闭式中冷回热燃气轮机循环的生态学优化

考虑循环过程的内外不可逆性,以生态学函数为目标,优化了总压比和中间压比分配,分析了高低温侧换热器、中冷器和回热器的性能参数对最大生态学函数及其参数的影响,并与以功率为优化目标时的循环性能进行了比较.结果表明:以生态学函数为优化目标时比以功率为优化目标时具有更高的效率,但功率相差不太多,反映了输出功率和效率间的最佳匹配.

Ecological Optimization of a Closed Cycle Gas Turbine with Irreversible Intercooling and Regenerated Coupled to an Isothermal Heat Reservoir

Focusing on an ecological function as the target and considering the internal as well as the external irreversibility of cyclic processes, the overall pressure ratio, together with the intermediate pressure ratio allotment are optimized ; the inflaence of property oparamenters, like the effectireness of the intercooler and regenerotor, on the moximal ecological function and corresponding paramenters are analyzed as well as A comparison is made with the cycle performonce in case power output is taken as the target of optimiration, reveats the fact that efficiency is higher if the ecological function is taken as the target of optimization compored to the case where power is taken as the target, though the power output differs but little in both cases. This shows that for optimizing purposes the ecological function is the best compromise between power and efficiency optimization.