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One-dimensional Modeling of Thermoelectric Cooling
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| Organization: | Universitat Halle-Wittenberg |
| Department: | Fachbereich Physik |
| Organization: | Universitat Halle-Wittenberg |
| Department: | Fachbereich Physik |
| Organization: | Institut für Werkstoff-Forschung |
| Department: | German Aerospace Center (DLR) Cologne |
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| Physica Status Solidi A-Applied Research |
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Applying a one-dimensional formulation, the authors give a short overview on thermoelectric effects. Starting from the first principles of thermoelectricity, differential equations governing the coupling of thermal and electric transports have been analytically and numerically solved by the software tool Mathematica. For (Bi0.5Sb0.5)2Te3 as an active material, the temperature profile T(x) in a single Peltier element has been calculated for constant thermoelectric material properties as well as for temperature dependent parameters. It is shown that temperature dependence effects can be sufficiently approximated by constant volume average values as far as the electric current remains near or below the optimum value for maximum temperature difference over the element.
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| PeltierCooling.nb (47.1 KB) - Mathematica Notebook [for Mathematica 5.0] | | PeltierCooling2.nb (92.3 KB) - Mathematica Notebook |
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