Thermal analysis of thin layer boilover |
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Authors: | Bulent Kozanoglu Fabio Ferrero Miguel Muñoz Josep Arnaldos Joaquim Casal |
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Institution: | (1) Universidad de las Américas, Puebla, Mexico;(2) Universitat Politècnica de Catalunya, Barcelona, Catalonia, Spain;(3) Mechanical Engineering Department, 72820, Sta. Catarina Mártir, Cholula, Puebla, Mexico |
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Abstract: | A mathematical model is developed to simulate the thin layer boilover phenomenon. This model takes into account convective
currents as well as conduction and radiation absorption through the fuel layer and is resolved numerically employing a scheme
of Runge–Kutta, combined with the numerical method of lines. Solutions of the model showed a good agreement with the experimental
data, both from this work and by other authors, demonstrating the importance of the convective currents. The model provided
velocities of these currents, of the same order of magnitude as the values reported in the technical literature. Thickness
of the remaining fuel and the interface temperature are correctly calculated by the model, allowing the prediction of the
time required for the boilover to start. |
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Keywords: | |
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