Title :
Characteristics of heat transfer in helium gas enclosed disk enclosure
Author :
Sato, I. ; Otani, K. ; Oguchi, S. ; Hoshiya, K.
Author_Institution :
Applied Electron. Lab., NTT, Tokyo, Japan
Abstract :
Experimental results of heat transfer in helium-gas-enclosed disk enclosure (DE) are described. The following results were obtained. (1) The windage loss of a DE containing helium gas is about one fifth of that of a DE containing air. This effectively decreases DE temperature and disk runout. (2) The temperature increase of the positioner coil in helium gas is about one half of that in air. (3) Smaller windage loss and high conductivity minimize helium gas locational temperature dependence
Keywords :
heat transfer; magnetic disc storage; He gas enclosure; conductivity; disk enclosure; disk runout; heat transfer; locational temperature dependence; positioner coil; temperature increase; windage loss; Brushless DC motors; Coils; Distortion measurement; Heat transfer; Helium; Magnetic heads; Magnetic liquids; Pollution measurement; Temperature dependence; Thermal resistance;
Conference_Titel :
Thermal Phenomena in the Fabrication and Operation of Electronic Components: I-THERM '88, InterSociety Conference on
Conference_Location :
Los Angeles, CA
DOI :
10.1109/ITHERM.1988.28694
