Investigation of wet steam flow in a 300 MW direct air-cooling steam turbine. Part 2: flow field and windage

被引:5
|
作者
Cai, X. [1 ]
Niu, F. [1 ]
Li, J. [1 ]
Su, M. [1 ]
Ning, T. [1 ]
Song, Y. [1 ]
Wu, G. [1 ]
机构
[1] Shanghai Univ Sci & Technol, Coll Power Engn, Inst Particle & Twophase Flow, Shanghai 200093, Peoples R China
关键词
low pressure steam turbine; measurement; wet steam; flow field; windage;
D O I
10.1243/09576509JPE811
中图分类号
O414.1 [热力学];
学科分类号
摘要
The direct air-cooling steam turbine has been more and more widely used due to global climatic change. For investigating the properties of the wet steam flow in an LP direct air-cooling steam turbine, measurements with an optical-pneumatic probe were carried out in a 300 MW turbine. Part I of this article presents the measurement results of wetness, size distribution of fine droplets, and other information. In this part, the flow field, including the yaw angle, pitch angle, Mach number, and velocity in different backpressures are presented. Due to higher backpressure, windage occurs much more in direct air-cooling steam turbines. The flow field and wetness in windage were investigated and measurement results are presented.
引用
收藏
页码:129 / 137
页数:9
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