000 01951aab a2200217 4500
008 240125b19901990|||mr||| |||| 00| 0 eng d
022 _a0017-9310
100 _aBiswajit Banerjee.
_9880236
100 _aK.V. Chalapathi Rao.
_9880237
100 _aV.M.K. Sastri.
_9880238
245 _aTransient free convective heat transfer from co-rotating concentric disks
300 _a1177-1182 p.
520 _aExperimental investigations are carried out for the determination of transient heat transfer coefficients between parallel co-rotating and concentrically stationary disks with internal heat generation. The experimental model simulates a typical induction motor with unequal losses in the stator and rotor at the start-up condition. The data collected cover a range of Taylor numbers for various heat inputs. Quantitative assessment is made for the increase in heat transfer with speed of rotation under free convective ambient conditions. Temperatures along the axial, radial and tangential directions are measured. Unsteady heat transfer coefficients to the ambient air are evaluated in the radially diverging section. The results of the corresponding R-C network are obtained on a digital computer. The predicted values of temperatures at the corresponding nodal points are compared with the measured values and found to be in good agreement. The results are potentially very useful in the thermal design of electrical machines, more specifically, radially ventilated induction motors.
650 _aFree Convection Heat Transfer
_9693534
650 _aCo-Rotating Concentric Disks
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650 _aAmbient Air
_9683222
650 _aTangential Directions
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773 0 _dNew York, U.S.A : Pergamon Subsidiary of Elsevier Science & Technology
_x00179310
_tInternational Journal of Heat and Mass Transfer
856 _uhttps://www.sciencedirect.com/science/article/pii/001793109090249T
942 _2ddc
_n0
_cART
_o14993
_pMr. Muhammad Rafique Al Haj Rajab Ali (Late)
999 _c814800
_d814800