Analysis of Losses in Steam Turbine Control Valves

被引：4

作者：

Mrozek, Lukas ^{[1
]}

Slama, Vaclav ^{[1
,2
]}

Sedlak, Kamil ^{[2
]}

Tajc, Ladislav ^{[1
]}

机构：

[1] Univ West Bohemia, Power Syst Engn Dept, Univ 8, Plzen 30614, Czech Republic

[2] Doosan Skoda Power Sro, Tylova 1-57, Plzen 30128, Czech Republic

来源：

19TH CONFERENCE ON POWER SYSTEM ENGINEERING | 2021年 / 2323卷

关键词：

D O I：

10.1063/5.0042097

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The paper deals with a flow in control valves of steam turbines and in classical diffiisers. The effect of the cone lift and the change of the flow cross-section on the energy losses is investigated. Total loss coefficients for a valve with a strainer and a valve without a strainer are evaluated along with the losses for the operating characteristics of the turbine. The effect of a flow dissipation and a disordered unsteady velocity flow field in the valve on the increase in the loss coefficient for a given angle of diffuser opening is considered.

引用

页数：8