湿空气透平循环流程优化分析

从换热器的位置与数目、体现能量的梯级利用原则、减小传热温差、避免带有显著温差的传热过程及充分利用每一个温度等级的能量等方面，分析了循环冷却水非等温混合流程的不足，提出了湿空气透平（ＨＡＴ）循环冷却水等温混合流程，并对该流程的参数进行了优化选择，得出了ＨＡＴ最高热效率循环流程．还分析计算了该循环的热力学性能

Assessment of Thermodynamic Performance of HAT Cycles

Humid Air Turbine (HAT) cycle is an intercooled, regenerated cycle with a saturator that adds considerable moisture to the compressor discharge air. It has been identified as a promising way of generating electric power at high efficiency and low cost. Two kinds of HAT cycles were studied. The difference between the two cycles is whether the makeup water is mixed at the same temperature. For the both configurations, the selection and optimization of the main cycle parameters were discussed. The more reversible air/water mixing mechanism realized in the saturator allows HAT cycles where water is mixed at the same temperature to achieve the efficiencies about 3 percentage points higher than those of HAT cycles where water is mixed at different temperatures.