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Journal of Chemical and Petroleum Engineering
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Volume Volume 53 (2019)
Issue Issue 1
June 2019, Page 1-135
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Heidari, A., Shamlou, P. (2019). CFD Simulation of Porosity and Particle Diameter Influence on Wall-to-Bed Heat Transfer in Trickle Bed Reactors. Journal of Chemical and Petroleum Engineering, 53(1), 111-121. doi: 10.22059/jchpe.2019.276544.1270
Amir Heidari; Parisa Shamlou. "CFD Simulation of Porosity and Particle Diameter Influence on Wall-to-Bed Heat Transfer in Trickle Bed Reactors". Journal of Chemical and Petroleum Engineering, 53, 1, 2019, 111-121. doi: 10.22059/jchpe.2019.276544.1270
Heidari, A., Shamlou, P. (2019). 'CFD Simulation of Porosity and Particle Diameter Influence on Wall-to-Bed Heat Transfer in Trickle Bed Reactors', Journal of Chemical and Petroleum Engineering, 53(1), pp. 111-121. doi: 10.22059/jchpe.2019.276544.1270
Heidari, A., Shamlou, P. CFD Simulation of Porosity and Particle Diameter Influence on Wall-to-Bed Heat Transfer in Trickle Bed Reactors. Journal of Chemical and Petroleum Engineering, 2019; 53(1): 111-121. doi: 10.22059/jchpe.2019.276544.1270

CFD Simulation of Porosity and Particle Diameter Influence on Wall-to-Bed Heat Transfer in Trickle Bed Reactors

Article 10, Volume 53, Issue 1, June 2019, Page 111-121  XML PDF (428.79 K)
Document Type: Research Paper
DOI: 10.22059/jchpe.2019.276544.1270
Authors
Amir Heidari email ; Parisa Shamlou
Faculty of Chemical, Petroleum and Gas Engineering, campus No.1, Semnan university, Semnan, Iran
Abstract
Wall-to-bed (or wall-to-fluid) heat transfer issues in trickle bed reactors (TBR) has an important impact on operation and efficiency in this category of reactors. In this study, the hydrodynamic and thermal behavior of trickle bed reactors was simulated by means of computational fluid dynamics (CFD) technique. The multiphase behavior of trickle bed reactor was studied by the implementation of the Eulerian-Eulerian multiphase approach. Also, bed porosity effect was modeled by porosity function method. In order to study the effect of operating parameters on wall-to-bed heat transfer, the influence of catalyst particle diameter and catalytic bed porosity was investigated on wall-to-bed Nu number. The results showed that the enhancement of catalytic bed porosity from 0.36 to 0.5 decreases the Nu number about 15% due to a reduction of liquid velocity adjacent to the reactor wall. Also, the increase of particle diameter from 4 to 6 millimeter decreases wall-to-bed Nu number about 15% owing to a reduction in liquid phase volume fraction.
Keywords
CFD Simulation; Eulerian-Eulerian Approach; Wall Effect; Trickle Bed Reactors; Wall-to-Bed Heat Transfer
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