A device for studying the chemical reactivity of condensed phase materials under concentrated solar irradiation has been designed and tested. Heating and cooling rates as well as stagnation temperatures have been calculated and verified experimentally. A key assumption for modelling was that radiation is the prevailing heat transfer mode. Calculated temperatures and those measured by modified pyrometry agree well. The results show that sample temperatures of can be reached with heating rates up to Non-forced cooling to ambient occurs with an average rate of about Forced cooling, with calculated rates of can be achieved with the built-in quench device. Reactivity studies have been initiated on iron oxides and manganese oxide, respectively. The results have shown that chemical analysis of the solid residue provides information for typical reaction times in the range of minutes. On-line gas phase analysis by mass spectrometry has been used to monitor reactions with typical reaction times in the range of several seconds.
Tremper–A Versatile Tool for High-Temperature Chemical Reactivity Studies under Concentrated Solar Radiation
Contributed by the Solar Energy Division of The American Society of Mechanical Engineers for publication in the ASME JOURNAL OF SOLAR ENERGY ENGINEERING. Manuscript received by the ASME Solar Energy Division, July 2000; final revision, December 2000. Associate Editor: D. M. Blake.
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Frey , T., Steiner , E., Wuillemin , D., and Sturzenegger, M. (December 1, 2000). "Tremper–A Versatile Tool for High-Temperature Chemical Reactivity Studies under Concentrated Solar Radiation ." ASME. J. Sol. Energy Eng. May 2001; 123(2): 147–152. https://doi.org/10.1115/1.1351810
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