DocumentCode
2099552
Title
Notice of Retraction
Fluid Characteristic Research of Cooling-Water on Stator Waterway Blockage in Turbo-generators
Author
Li Jun-qing ; Hu Ji-wei
Author_Institution
Sch. of Electr. & Electron. Eng., North China Electr. Power Univ., Baoding, China
fYear
2010
fDate
28-31 March 2010
Firstpage
1
Lastpage
4
Abstract
Notice of Retraction
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
Blockage of hollow strands´ waterway can cause cooling-water flux decreasing, cooling effect falling and stator bar overheating in water-cooling turbo-generators, which could induce generators not to operate normally. It helps to calculate precisely temperature field of generators and diagnose incipiently the plugging fault of cooling-waterway that one study fluid characteristic of cooling-water on hollow strands blocked in turbo-generators. In accordance with generators structure and computational fluid dynamics (CFD), the cooling-water fluid field of turbo-generators stator was studied when the cooling waterway was blocked. Velocity field of cooling-water was researched by applying finite element method(FEM) when the hollow-strands were blocked in different positions and plugging extent. The paper analyzed influence of blockage site and extent on flow characteristic of water in hollow strands. The achievement can be used for calculation of temperature filed and early diagnosis of blockage fault in generators.
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
Blockage of hollow strands´ waterway can cause cooling-water flux decreasing, cooling effect falling and stator bar overheating in water-cooling turbo-generators, which could induce generators not to operate normally. It helps to calculate precisely temperature field of generators and diagnose incipiently the plugging fault of cooling-waterway that one study fluid characteristic of cooling-water on hollow strands blocked in turbo-generators. In accordance with generators structure and computational fluid dynamics (CFD), the cooling-water fluid field of turbo-generators stator was studied when the cooling waterway was blocked. Velocity field of cooling-water was researched by applying finite element method(FEM) when the hollow-strands were blocked in different positions and plugging extent. The paper analyzed influence of blockage site and extent on flow characteristic of water in hollow strands. The achievement can be used for calculation of temperature filed and early diagnosis of blockage fault in generators.
Keywords
computational fluid dynamics; cooling towers; finite element analysis; stators; turbogenerators; blockage fault; computational fluid dynamics; cooling-water fluid field; cooling-water flux; finite element method; fluid characteristic; stator bar overheating; stator waterway blockage; turbo-generators; velocity field; Character generation; Computational fluid dynamics; Cooling; Finite element methods; Mathematical model; Navier-Stokes equations; Stators; Temperature; Turbines; Water;
fLanguage
English
Publisher
ieee
Conference_Titel
Power and Energy Engineering Conference (APPEEC), 2010 Asia-Pacific
Conference_Location
Chengdu
Print_ISBN
978-1-4244-4812-8
Type
conf
DOI
10.1109/APPEEC.2010.5448671
Filename
5448671
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