TY - JOUR
T1 - Some notes on temperature rise armature in traction motor. (I) On revaluation of heat transfer coefficient and estimating of air flow characteristic through air-holes
AU - Kawakami, Yukio
AU - Mutoh, Hiroshi
PY - 1988/12/1
Y1 - 1988/12/1
N2 - In estimating heat transfer in a traction motor, consideration must be given to a rise in air temperature. The authors investigated air flow characteristic with dummy rotors simulating an armature core in which the prototype motor output is 230[kW]. Air hole diameter, hole number, and rotor speed have little effect on pressure loss coefficient. The pressure loss coefficient is ζ = 49Re-0.3 for Reynolds numbers ranging from 104 to 2 × 105.
AB - In estimating heat transfer in a traction motor, consideration must be given to a rise in air temperature. The authors investigated air flow characteristic with dummy rotors simulating an armature core in which the prototype motor output is 230[kW]. Air hole diameter, hole number, and rotor speed have little effect on pressure loss coefficient. The pressure loss coefficient is ζ = 49Re-0.3 for Reynolds numbers ranging from 104 to 2 × 105.
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M3 - Article
AN - SCOPUS:0024127212
SN - 0372-7181
SP - 54
EP - 63
JO - Waseda Daigaku Rikogaku Kenkyusho Hokoku/Bulletin of Science and Engineering Research Laboratory, Waseda University
JF - Waseda Daigaku Rikogaku Kenkyusho Hokoku/Bulletin of Science and Engineering Research Laboratory, Waseda University
IS - 120
ER -