Research of guide vane proposals for the single-stage axial-flow fans used in the large generator

Author

Ye Zeng-Ming ; Zhu Ting-Ting

Author_Institution

Dept. of Power Eng., Univ. of Shanghai for Sci. & Technol., Shanghai, China

fYear

2009

fDate

6-7 April 2009

Firstpage

1

Lastpage

4

Abstract

Based on the one-dimensional design method and under the condition of ideal gas, this paper analyses the proportion of swirl energy losses to the theoretical pressure rise of the axial-flow fans used in the China-made 300 MW Generator and WESTHOUSE 135 MW Generator, the former is 13.79% and the latter is 11.4%. The results both of the CFD numerical simulation and model-testing prove that the straightener vanes can change 90% of the swirl energy losses into the useful energy, they can improve the efficiency of the fan about 12.33% compared with the same fan without guide vanes.

Keywords

computational fluid dynamics; electric generators; numerical analysis; 1D design method; China-made generator; WESTHOUSE Generator; computational fluid dynamics; numerical simulation; power 135 MW; power 300 MW; single-stage axial-flow fans; swirl energy losses; Blades; Computational fluid dynamics; Design engineering; Design methodology; Energy loss; Fans; Numerical models; Numerical simulation; Power engineering; Proposals; axial-flow fans; large generator; straightener vanes; swirl energy losses;

fLanguage

English

Publisher

ieee

Conference_Titel

Sustainable Power Generation and Supply, 2009. SUPERGEN '09. International Conference on

Conference_Location

Nanjing

Print_ISBN

978-1-4244-4934-7

Type

conf

DOI

10.1109/SUPERGEN.2009.5348150

Filename

5348150