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在第(I)部分给出循环功率和效率计算流程的基础上,通过优化低压压气机压比和总压比,分别得到了考虑空气冷却和实际气体性质的三轴燃气轮机简单循环最大比功率、最大效率及相应的冷却空气比例。计算和分析表明,存在最佳的总压比使循环性能最优,燃烧室出口燃气温度对循环最优性能有影响。
Based on the calculation of cycle power and efficiency in Section (I), the maximum specific power of simple cycle of three-shaft gas turbine with air cooling and actual gas properties are obtained by optimizing the pressure ratio and total pressure ratio of LP compressor. The maximum efficiency and the corresponding cooling air ratio. The calculation and analysis show that there is an optimum total pressure ratio to optimize the cycle performance, and the gas temperature at the exit of the combustion chamber has an impact on the optimal performance of the cycle.