A fan‐equipped reactor for dust explosion tests |
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Authors: | Almerinda Di Benedetto Paola Russo Roberto Sanchirico Valeria Di Sarli |
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Affiliation: | 1. Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Università degli Studi Federico II, Napoli, Italy;2. Dipartimento di Ingegneria Chimica Materiali Ambiente, Sapienza Università di Roma, Roma, Italy;3. Istituto di Ricerche sulla Combustione ‐ Consiglio Nazionale delle Ricerche (IRC‐CNR), Napoli, Italy |
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Abstract: | A Computational Fluid Dynamics (CFD) model was developed with the aim at simulating the turbulent flow field and associated dust dispersion in an agitated spherical explosion vessel. Simulations were performed in the presence of two counter‐rotating fans and also after having switched‐off the fans. Numerical results have shown that the dust mainly accumulates at the center of the sphere in the space left by the four vortices formed. After the switch‐off of the fans, the dust particles start filling the empty volumes inside the sphere, reaching a quite uniform distribution (with concentration equal to the nominal value) and simultaneously ensuring a controlled value of turbulent kinetic energy. © 2015 American Institute of Chemical Engineers AIChE J, 61: 1572–1580, 2015 |
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Keywords: | process safety dust explosion CFD simulations 20 L explosion vessel turbulence dust dispersion |
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