A numerical analysis of the serial design of the T-250/300-23.5 cogeneration turbine low-pressure cylinder’s exhaust hood

被引：0
|
作者：
Solodov V.G. [1 ]
Khandrimailov A.A. [1 ]
Kultyshev A.Y. [2 ]
Stepanov M.Y. [2 ]
Yamaltdinov A.A. [2 ]
机构：
[1] Kharkiv National Motor-Road University, ul. Petrovskogo 25, Kharkiv
[2] Ural Turbine Works, ul. Frontovykh Brigad 18, Yekaterinburg
来源：
Thermal Engineering | 2014年 / 61卷 / 12期
关键词：
exhaust hood; finite volume method; low-pressure cylinder; numerical modeling; total loss coefficient;
D O I：
10.1134/S0040601514120064
中图分类号：
学科分类号：
摘要：
A mathematical model of the low-pressure cylinder’s exhaust compartment used in the serial design version of the T-250/300-23.5 turbine is constructed. The exhaust compartment consists of the turbine flow path last stage, a moisture removal chamber, and an exhaust hood (the EH stage). The effect of individual elements of the low-pressure cylinder exhaust compartment’s flow path on its gas dynamic characteristics in condensing modes of operation is numerically modeled for a wide range of steam flow rates. For the compartment with the exhaust hood completely filled with its inner elements, the flow patterns are calculated in partial modes of operation with presenting data on losses and flow-averaged integral characteristics at the diffuser inlet. The calculation results have been verified against the data of full-scale and model tests. © Pleiades Publishing, Inc., 2014.
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页码：868 / 872
页数：4
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