Off-design Characteristics for Ambient Air Temperature and Turbine Load of Gas Turbine Pre-swirl System

被引：0

作者：

Park, Hyunwoo ^{[1
]}

Lee, Jungsoo ^{[2
]}

Cho, Geonhwan ^{[3
]}

Cho, Jinsoo ^{[2
]}

机构：

[1] Hanyang Univ, Dept Mech Convergence Engn, Seoul, South Korea

[2] Hanyang Univ, Dept Mech Engn, Seoul, South Korea

[3] Doosan Heavy Ind & Construct, Gas Turbine Syst Integrat Team, Chang Won, South Korea

来源：

JOURNAL OF THE KOREAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES | 2019年 / 47卷 / 12期

关键词：

Ambient Air Temperature; Gas Turbine; Off-design; Pre-swirl System; Secondary Air System; Turbine Load; FLOW;

D O I：

10.5139/JKSAS.2019.47.12.881

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

The pre-swirl system is the device that minimizes energy loss of turbine cooling airflow from the stationary parts into rotating parts. In this paper, an off-design analysis was conducted for the ambient air temperature and turbine load conditions. The discharge coefficient was constant for ambient air temperature and turbine load. However, adiabatic effectiveness was increased. This is due to the volume flow rate. The volume flow rate was increased at higher ambient temperature and higher turbine load. It means that the volume of cooling air was increased and the cooling performance of the air was improved. Consequently, adiabatic effectiveness increased by 30.46% at 100% turbine load compared to 20% turbine load. And increased by 18.42% at 55 degrees C ambient air temperature compared to -20 degrees C ambient air temperature.

引用

页码：881 / 889

页数：9

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