A new online model for calculating the exhaust enthalpy was proposed aiming at the limitation of existing online calculation model for calculating the enthalpy of steam turbine lp exhaust hood.

针对现有的汽轮机低压缸排汽焓在线计算模型存在一定的局限性，提出了一种排汽焓在线计算新模型。

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The flow characters and the requirement for aerodynamic performance of modern large steam turbine exhaust hood, and their several effects on the steam turbine are discussed in detail.

本文详细讨论了现代大功率汽轮机排汽缸的流动特点对其气动性能的要求及对机组的各种影响。

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