Modeling the thermophoretic impact on nanoparticle production in an enclosed FSP reactor

Author(s)

Neto, Pedro Bianchi ; Buss, Lizoel ; Stodt, Malte F. B. ; Fritsching, Udo ; Noriler, Dirceu

• Document type: Journal article
• Source: APPLICATIONS IN ENERGY AND COMBUSTION SCIENCE; v. 15, p. 13-pg., 2023-09-01.

Abstract

For the accurate modeling and simulation of the flame spray pyrolysis (FSP) process, all the essential phenomena need to be taken into account. A validated model could then be used for process optimization and design with reasonably reduced costs. In that sense, this work uses a combination of computational fluid dynamics (CFD) and a population balance model (PBM) to investigate the influence of thermophoresis and other parameters (related to sintering and turbulent particle diffusion) in the final produced particle size. This work simulates the flame spray using CFD under an Eulerian-Lagrangian framework. Furthermore, a monodisperse solver for a bivariate PBM is implemented into ANSYS Fluent to simulate the formation and evolution of nanoparticles inside the reactor. We investigate the production of zirconium dioxide (ZrO2) nanoparticles and use experimental data from the literature for model validation. The model produces accurate results for some of the investigated cases. (AU)

• FAPESP's process: 20/08502-9 - Advancement in the modeling and simulation of nanoparticle production via FSP
• Grantee: Pedro Bianchi Neto
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 21/01067-8 - Large eddy simulation and composition modeling of the flame spray pyrolysis nanoparticle production
• Grantee: Dirceu Noriler
• Support Opportunities: Regular Research Grants