Characteristic overpressure-impulse-distance curves for vapour cloud explosions using the TNO Multi-Energy model |
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Authors: | Díaz Alonso Fernando González Ferradás Enrique Sánchez Pérez Juan Francisco Miñana Aznar Agustín Ruiz Gimeno José Martínez Alonso Jesús |
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Affiliation: | Grupo de Investigación Seguridad e Higiene en la Industria, Departamento de Ingeniería Química, Universidad de Murcia, Campus Universitario de Espinardo, 30100 Murcia, Spain. ferdiaz@um.es |
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Abstract: | A number of models have been proposed to calculate overpressure and impulse from accidental industrial explosions. When the blast is produced by ignition of a vapour cloud, the TNO Multi-Energy model is widely used. From the curves given by this model, data are fitted to obtain equations showing the relationship between overpressure, impulse and distance. These equations, referred herein as characteristic curves, can be fitted by means of power equations, which depend on explosion energy and charge strength. Characteristic curves allow the determination of overpressure and impulse at each distance. |
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Keywords: | Vapour cloud explosion Overpressure Impulse TNO Multi-energy model Industrial accident |
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