DocumentCode
2831953
Title
Notice of Retraction
Numerical and experimental investigation on centrifugal fan with a vortex-broken device
Author
Song-ling Wang ; Lei Zhang ; Qian Zhang
Author_Institution
Dept. of Power Eng., North China Electr. Power Univ., Baoding, China
Volume
4
fYear
2010
fDate
22-24 Oct. 2010
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 flow field of the G4-73 centrifugal fan was numerically simulated with the software of Fluent. The numerical results show that large-scale vortex in volute were push forward, and the scale and intensity of vortex change in different circumferential cross section of the volute. A vortex-broken device was designed based on the idea of decrease flow loss and vortex noise through breaking large-scale vortex. Experimental results show that after the device was added, when relative flow more than 45%, total pressure increase significantly and high efficiency area broaden. Total pressure nearly increases 44 Pa at the design flow, and the efficiency average increases 3% when relative flow is 85%~100%. The device has a guiding significance of energy-saving for power plant.
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 flow field of the G4-73 centrifugal fan was numerically simulated with the software of Fluent. The numerical results show that large-scale vortex in volute were push forward, and the scale and intensity of vortex change in different circumferential cross section of the volute. A vortex-broken device was designed based on the idea of decrease flow loss and vortex noise through breaking large-scale vortex. Experimental results show that after the device was added, when relative flow more than 45%, total pressure increase significantly and high efficiency area broaden. Total pressure nearly increases 44 Pa at the design flow, and the efficiency average increases 3% when relative flow is 85%~100%. The device has a guiding significance of energy-saving for power plant.
Keywords
energy conservation; fans; numerical analysis; power plants; vortices; Fluent software; G4-73 centrifugal fan; breaking large-scale vortex; energy-saving; flow field; flow loss; power plant; volute; vortex noise; vortex-broken device; Numerical models; Performance evaluation; centrifugal fan; numerical simulation; vortex; vortex-broken device;
fLanguage
English
Publisher
ieee
Conference_Titel
Computer Application and System Modeling (ICCASM), 2010 International Conference on
Conference_Location
Taiyuan
Print_ISBN
978-1-4244-7235-2
Type
conf
DOI
10.1109/ICCASM.2010.5620298
Filename
5620298
Link To Document