Predictive accuracy of simplified vent area sizing methods for the case of thermal runaway reactions |
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| Institution: | 1. Bechtel Energy, 3000 Post Oak Boulevard, Houston, TX - 77407, USA;1. National Energy Technology Laboratory, Pittsburgh, PA USA;2. Lawrence Berkeley National Laboratory, Berkeley, CA USA;3. West Virginia University, Morgantown, WV USA;4. Carnegie Mellon University, Pittsburgh, PA USA;5. National Energy Technology Laboratory, Morgantown, WV USA;6. Lawrence Livermore National Laboratory;1. Laboratoire de GénieChimique, Université de Toulouse, CNRS/INP/UPS, Toulouse, France;2. Politecnico di Milano, Dipartimento di Chimica, Materiali e IngegneriaChimica “Giulio Natta”, Piazza Leonardo da Vinci 32, 20133 Milano, Italia |
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| Abstract: | A systematic comparison of the predictive accuracy of simplified design methods with respect to the relief diameter and the discharged mass flow on the basis of experimental results obtained in reactors with volumina ranging between 0.01 and 10 m3 allow for the conclusion that empirical design rules are not suited for an extrapolation. The preliminary recommended method in case of vapour systems is this of J.C. Leung and for use with gassy or hybrid systems the method by H.K. Fauske and J.C. Leung is promoted. Indeed, partly non acceptable overpredictions are evident. By using SAFIRE/VENT reasonable predictions are possible though still an oversizing can not be cut off. |
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