The results show that the number of regenerative stages in air-cooled units should not be reduced with increasing back pressure for calculating optimum cnthalphy rise distribution.

结果表明，对于空冷机组，在进行焓升最佳分配计算时，回热级数不能因背压提高而减少。

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To the end of lower pressure cylinder, the thesis set up architecture of multi-objective energy saving for thermal power units on the basis of power characteristic to back pressure of steam turbine.

针对汽轮机低压缸末端，本文基于汽轮机的功率背压特性建立了循环水变速调节系统的多目标节能优化体系结构。

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