Modellbasierte Untersuchung des Wärmeübergangs in einer induktiv beheizten Wirbelschicht |
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Authors: | Vesselin V Idakiev Andreas Bück Evangelos Tsotsas Lothar Mörl |
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Affiliation: | 1. Otto‐von‐Guericke‐Universit?t Magdeburg, Lehrstuhl für thermische Verfahrenstechnik / NaWiTec, Universit?tsplatz 2, 39106 Magdeburg, Deutschland.Otto‐von‐Guericke‐Universit?t Magdeburg, Lehrstuhl für thermische Verfahrenstechnik / NaWiTec, Universit?tsplatz 2, 39106 Magdeburg, Deutschland.;2. Otto‐von‐Guericke‐Universit?t Magdeburg, Lehrstuhl für thermische Verfahrenstechnik / NaWiTec, Universit?tsplatz 2, 39106 Magdeburg, Deutschland. |
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Abstract: | The aim of the presented study is to develop a new technology for a highly efficient heating of fluidized beds. The energy input in fluidized beds can be performed by convective indirect heating of the fluidizing medium, or by induction by means of electrically conductive inert particles (such as iron hollow balls), in which energy is transferred via an induction field. On the surface of these particles, the heat is released directly and without contact into the fluidized bed. The impact of parameters like bed mass, air velocity and supplied induction power on the inductive heating was systematically investigated. A simplified heat transfer model was developed. With this model a good agreement with the measured values for heating and cooling can be achieved. |
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Keywords: | Berü hrungsloser Wä rmeeintrag Induktive Erwä rmung Inertpartikel Wä rmeü bergang Wirbelschicht Fluidized bed Heat transfer Inductive heating Inert particles Non‐contact heat input |
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