Title :
Characteristics of heat transfer in a helium-filled disk enclosure
Author :
Sato, Isamu ; Otani, Koji ; Oguchi, Shigemitu ; Hoshiya, Kunio
Author_Institution :
Appl. Electron. Lab., NTT, Tokyo, Japan
Abstract :
Experimental results of heat transfer in a helium-filled disk enclosure (DE) are reported. The windage loss of a DE containing helium was found to be 1/5 that of a DE containing air. The temperature increase of the positioner coil and spatial temperature variations in a helium-filled DE were found to be much smaller than in air. It is concluded that these results are due to the lower specific weight and higher thermal conductivity of helium.<>
Keywords :
heat transfer; magnetic disc storage; heat transfer; positioner coil; spatial temperature variations; specific weight; thermal conductivity; windage loss; Brushless DC motors; Coils; Distortion measurement; Heat transfer; Helium; Loss measurement; Magnetic heads; Pollution measurement; Temperature; Thermal conductivity;
Journal_Title :
Components, Hybrids, and Manufacturing Technology, IEEE Transactions on
