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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Farahmand, F. Lavers, J.D. Dawson, F.P. |
| Copyright Year | 1965 |
| Abstract | The coupled problem of estimating the temperature rise due to the winding and core loss in a vertically oriented magnetic component is considered. The principle contributions in this paper are two-fold: 1) the coupling between the losses and thermal problems for the component is addressed accounting for the effects of nearby barriers and 2) the complication that the convection coefficient is not known accurately is overcome by means of solving a coupled electrothermal-air flow problem in order to characterize heat transfer to the ambient surroundings. It is shown that the coupling between the loss and temperature in the magnetic material has negligible effects on the temperature since the deviation in temperature is not more than 13% at worst if the loss is considered constant for different barrier-to-core distances. The convection coefficients of the core's top and side surfaces are shown not to be significantly influenced by the boundary condition imposed on the barrier. The boundary conditions substantially affect the temperature by introducing an additional path for heat transfer. Additionally, the contribution of radiation is found to be roughly 50% of the total loss regardless of the barrier height and distance and its boundary condition |
| Sponsorship | IEEE Magnetics Society |
| Starting Page | 1429 |
| Ending Page | 1432 |
| Page Count | 4 |
| File Size | 385627 |
| File Format | |
| ISSN | 00189464 |
| Volume Number | 43 |
| Issue Number | 4 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2007-04-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Isothermal processes Temperature Boundary conditions Couplings Heat transfer Core loss Electrothermal effects Magnetic materials Magnetic cores Rough surfaces radiation Convection heat transfer loss-temperature coupling |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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