Designing air cooling rotor for evaporative cooling turbo generator

Author

Xiong, Bin ; Gu, Guobiao

Author_Institution

Evaporative Cooling Lab., Chinese Acad. of Sci., Beijing

fYear

2008

fDate

17-20 Oct. 2008

Firstpage

557

Lastpage

560

Abstract

Turbo generator with evaporative cooling stator and air cooling rotor possesses many excellent qualities for mid unit. The stator bars and core are immerged in evaporative coolant, which could be cooled fully. The rotor bars are cooled by air inner cooling mode, and the cooling effect compared with hydrogen and water cooling mode is limited. So an effective ventilation system has to been employed to insure the reliability of rotor. This paper presents the comparisons of stator temperature distribution between evaporative cooling mode and air cooling mode, and the designing of rotor ventilation system combined with evaporative cooling stator.

Keywords

power system reliability; turbogenerators; ventilation; air cooling rotor ndesign; air inner cooling mode; evaporative cooling stator; rotor reliability; stator bars; stator temperature distribution; turbo generator; ventilation system; Bars; Coolants; Cooling; Costs; Hydrogen; Power generation; Rotors; Stator cores; Turbogenerators; Ventilation; air cooling; axial-radial ventilation; evaporative cooling; turbo generator;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems, 2008. ICEMS 2008. International Conference on

Conference_Location

Wuhan

Print_ISBN

978-1-4244-3826-6

Electronic_ISBN

978-7-5062-9221-4

Type

conf

Filename

4770763