DocumentCode
1960213
Title
Notice of Retraction
Research on temperature field of turbogenerators on hollow strands blocked
Author
Junqing Li ; Zhongbin Liu ; Jianmin Fu
Author_Institution
Sch. of Electr. & Electron. Eng., North China Electr. Power Univ., Baoding, China
Volume
2
fYear
2010
fDate
9-11 July 2010
Firstpage
513
Lastpage
517
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.
The stator temperature monitoring is one of important means that diagnose fault of stator cooling system in turbogenerators, so it is necessary to hold the relationship between cooling system fault and temperature field. Thus, on the basis of the fluid mechanics and heat transfer theory, the temperature field model of stator cooling-water in turbogenerator was built. The control equations of the stator 3-D fluid and temperature fields were coupling calculated by using the finite element method. The distribution of the fluid speed and winding temperature was analyzed when the stator hollow strands were blocked on different sites. The results show that the temperature distribution of the stator bar and the difference between the highest and lowest temperature of the stator bar are influenced by different blockage of the stator hollow strands. The paper calculates the stator bar 3D temperature field of a QFSN-220-2 turbogenerator when hollow strands are differently blocked, the results show the model and calculation method are correct.
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.
The stator temperature monitoring is one of important means that diagnose fault of stator cooling system in turbogenerators, so it is necessary to hold the relationship between cooling system fault and temperature field. Thus, on the basis of the fluid mechanics and heat transfer theory, the temperature field model of stator cooling-water in turbogenerator was built. The control equations of the stator 3-D fluid and temperature fields were coupling calculated by using the finite element method. The distribution of the fluid speed and winding temperature was analyzed when the stator hollow strands were blocked on different sites. The results show that the temperature distribution of the stator bar and the difference between the highest and lowest temperature of the stator bar are influenced by different blockage of the stator hollow strands. The paper calculates the stator bar 3D temperature field of a QFSN-220-2 turbogenerator when hollow strands are differently blocked, the results show the model and calculation method are correct.
Keywords
cooling; fault diagnosis; fluid mechanics; heat transfer; stators; temperature distribution; turbogenerators; windings; QFSN-220-2 turbogenerator; control equations; fault diagnose; finite element method; fluid mechanics; fluid speed; heat transfer theory; hollow strands; stator 3-D fluid; stator bar; stator cooling system; stator cooling-water; stator hollow strands; stator temperature monitoring; temperature distribution; temperature field; winding temperature; Argon; Educational institutions; Lead; Mathematical model; Thermal conductivity; Cooling system; Hollow strands; Temperature field; Turbogenerators;
fLanguage
English
Publisher
ieee
Conference_Titel
Computer Science and Information Technology (ICCSIT), 2010 3rd IEEE International Conference on
Conference_Location
Chengdu
Print_ISBN
978-1-4244-5537-9
Type
conf
DOI
10.1109/ICCSIT.2010.5565143
Filename
5565143
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