Experimental investigation of compact silicon carbide heat exchangers for high temperatures |
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| Authors: | Thomas Fend Wilhelm Völker Rolf Miebach Olena Smirnova Daniel Gonsior Daniel Schöllgen Peter Rietbrock |
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| Affiliation: | 1. German Aerospace Center, Institute of Technical Thermodynamics, Linder Höhe, 51147 Köln, Germany;2. Saint Gobain Industriekeramik Rödental GmbH, Postfach 1144, 96466 Rödental, Germany;3. Deutz AG, Ottostraße 1, 51149 Köln, Germany;4. Solar-Institut Jülich, Heinrich-Mußmann-Straße 5, 52428 Jülich, Germany;1. CNRS, LTN, UMR 6607, Université de Nantes, Rue Christian Pauc, 44306 Nantes Cedex 3, France;2. Aix-Marseille Université, CNRS, IUSTI UMR 7343, 13453 Marseille Cedex 13, France;3. Processes, Materials and Solar Energy Laboratory, PROMES, UPR CNRS 8521, 66120 Font-Romeu-Odeillo-Via, France;1. Instituto de Cerámica y Vidrio (CSIC), C/ Kelsen, 28049 Madrid, Spain;2. Centro Nacional de Investigaciones Metalúrgicas (CSIC), Avda. Gregorio del Amo 8, 28040 Madrid, Spain;1. Energy Systems Engineering Group (ISE), Department of Fluids and Thermal Engineering, Universidad Carlos III of Madrid, Av. Universidad 30, Leganés 28911, Madrid, Spain;2. Laboratoire PROcédés, Matériaux, Energie Solaire (PROMES), UPR 8521 CNRS, 7 rue du Four Solaire, 66120 Odeillo, France;1. CEA, DAM, LE RIPAULT, F-37260, Monts, France;2. Université de Pau et des Pays de l’Adour, E2S UPPA, CNRS, LMAP, Anglet, France;3. Processes, Materials and Solar Energy Laboratory (CNRS-PROMES), 7 rue du Four Solaire, 66120, Font-Romeu, France;4. CNRS, University of Limoges, Institute of Research for Ceramics (IRCER), European Ceramics Center, Limoges, France;1. PROMES–CNRS Laboratory (UPR 8521), 7 rue du Four Solaire, 66120 Font-Romeu-Odeillo-Via, France;2. School of Mechanical Engineering, Tel Aviv University, Tel Aviv 69978, Israel |
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| Abstract: | The results of experimental investigations of novel ceramic high-temperature heat exchangers (HTHE) and its main characteristics such as effectiveness and power load as a function of mass flow and the geometry of the channels are presented. Firstly, some information on the background and the manufacturing of the HTHE, which is based on honey comb structures made out of extruded silicon carbide, is given. The experimental tests have been carried out with air as a heat transfer medium at temperatures of up to 1000 °C. The experimental set-up is described in detail. The acquired characteristic temperature and effectiveness data for different inlet temperatures and mass flows are discussed. They have been compared with data from theoretical calculations as well as with characteristic data of typical counter flow heat exchangers. Additionally, thermal shock tests have been carried out for a qualitative testing of the mechanical strength. Finally, a conclusion and an outlook on further activities are given. |
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