SF6 transformer force-directed-gas duct design based on thermal-fluid coupled analysis method

Author

Jian, Guo ; Heyun, Lin ; Shuhua, Fang ; Chengfeng, Yang ; Xiping, Liu

Author_Institution

Southeast Univ., Nanjing

fYear

2007

fDate

8-11 Oct. 2007

Firstpage

1309

Lastpage

1311

Abstract

SF₆ gas insulated transformer (GIT) has the advantages of nonflammable and non-explosive. However, there is a deviation in flows near the coils, which results the coil temperature overheat. In order to remove the deviation of flow, it is necessary to use force-directed-gas duct cooling system. In this paper, the force-directed-gas duct heat fluid coupled finite element method is presented based on the fundamental theories of heat transfer and fluid dynamics, a standard k-epsiv model was used as a turbulence model, the components of gas flow and the coils temperature distributions are also calculated. Additionally, the force-directed-gas duct design method is presented.

Keywords

SF₆ insulation; finite element analysis; fluid dynamics; gas insulated transformers; heat systems; heat transfer; pipe flow; temperature distribution; turbulence; GIT; SF₆ gas insulated transformer; fluid dynamics; force-directed-gas duct cooling system design; heat fluid coupled finite element method; heat transfer; k-epsiv model; temperature distributions; thermal-fluid coupled analysis method; turbulence model; Coils; Cooling; Ducts; Finite element methods; Gas insulation; Heat transfer; Power transformer insulation; Sulfur hexafluoride; Temperature; Thermal force; SF6; thermal-fluid coupled; transformer;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems, 2007. ICEMS. International Conference on

Conference_Location

Seoul

Print_ISBN

978-89-86510-07-2

Electronic_ISBN

978-89-86510-07-2

Type

conf

Filename

4412337