Study of two-phase flow void fraction in evaporative generator stator bar

Author

Shunzhou, Yu ; Jing, Cai ; Haihong, Dong ; Guobiao, Gu

Author_Institution

Inst. of Electr. Eng., Chinese Acad. of Sci., Beijing

fYear

2008

fDate

17-20 Oct. 2008

Firstpage

611

Lastpage

614

Abstract

According to the character of liquid and gas two-phase flow in the evaporative cooling generator stator bar, the void fraction was calculated and analyzed using universal model. Experiment table of v ray measurement system was erected. Because all the calculation models donpsilat consulted the influence of flux to the drift velocity, the calculated result and the experiment result are not consistent with each other. Referring to the relationship of void fraction versus vapor quantity, the drift velocity was corrected using Nabizadeh2 model. The calculation error is between -10%~10% when the vapor quantity is larger than 30%. The study result provides foundation for the calculation of liquid and gas two phase flow pressure drop.

Keywords

cooling; electric generators; two-phase flow; voids (solid); drift velocity; evaporative generator stator bar; two-phase flow void fraction; Accuracy; Character generation; Cooling; Electric variables measurement; Electron mobility; Fluid flow measurement; Metrology; Phase measurement; Pressure measurement; Stators;

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

4770776