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KELLER HCW: Bachelor Dissertation Completed with Best Rating

The German company KELLER HCW/DE regularly offers students the opportunity to prepare their theses in various engineering areas, such as mechanical engineering, process engineering, process control technology and electrical engineering. As in the case of Tobias Nimz, exciting subjects are always available. Tobias Nimz worked out his bachelor dissertation in the process engineering department of KELLER HCW with the best rating of 1,0.

The subject of his dissertation was “Thermodynamic examination of heat transfer in a countertravel kiln with roofing tile load”. This is the crowning completion of his studies at the University of Applied Sciences in Osnabrück/DE in Process Engineering study courses. During his bachelor dissertation he was accompanied by Prof. Dr R.-G. Schmidt of the University of Applied Sciences in Osnabrück and Dipl.-Ing. R. Hüsing of KELLER HCW.  In order to reduce energy consumption drastically during firing, KELLER HCW has currently been examining the principle of the countertravel kiln. This was preceded by extensive theoretical considerations which were established with the support of Fluent Software. Based on these positive results a test kiln with a width of 5 m, a length of 16 m and a height of 5 m was built. Over a period of several months the KELLER HCW team and Tobias Nimz performed numerous firing tests with roofing tiles to obtain safe examination data and fundamental measuring results. Heat transfer by convection and radiation were determined and checked as to whether the typical energy transfer in the countertravel kiln works according to the solid-solid-principle. Since the results are positive, further types of setting with different products have currently been tested.


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