Title :
Windage loss reduction of flywheel/generator system using He and SF 6 gas mixtures
Author :
Shimada, Ryuichi
fDate :
27 Jul-1 Aug 1997
Abstract :
This paper presents the experimental results of using He (helium) and SF6 (sulfur-hexaflouride) gas mixtures in order to reduce windage loss of vertical shaft type generator/flywheel system. Helium reduces the loss much more, but its electric breakdown voltage is the lowest. The results show that between 15 and 5 percent of He and SF6 mixtures could reduce the windage loss significantly compared to that of air. The gap and surface breakdown voltages of the gases used in the experiment have also been measured
Keywords :
SF6 insulation; electric breakdown; electric generators; flywheels; gas mixtures; helium; insulation testing; losses; machine insulation; machine testing; machine windings; He; He/SF6 gas mixtures; SF6; electric breakdown voltage; flywheel/generator system; gap breakdown voltage; surface breakdown voltage; windage loss reduction; Batteries; Coils; Energy storage; Flywheels; Helium; Nuclear power generation; Power system reliability; Sulfur hexafluoride; Toroidal magnetic fields; Water storage;
Conference_Titel :
Energy Conversion Engineering Conference, 1997. IECEC-97., Proceedings of the 32nd Intersociety
Conference_Location :
Honolulu, HI
Print_ISBN :
0-7803-4515-0
DOI :
10.1109/IECEC.1997.656687
