Polytechnic University of Valencia Congress, 21st International Drying Symposium

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Implementation of P-Controller in Computational Fluid Dynamics (CFD) Simulation of a Pilot Scale Outlet Temperature Controlled Spray Dryer
Sepideh Afshar, Hasan Jubaer, Lloyd Metzger, Hasmukh Patel, Cordelia Selomulya, Meng Wai Woo

Last modified: 02-01-2019


Most of the CFD simulations of spray dryers reported in the literature utilizes a fixed air inlet temperature numerical framework.  In this paper, a numerical framework was introduced to model spray drying as an outlet air temperature controlled process.  A P-controller numerical framework was introduced which allows the inlet temperature to be automatically adjusted based on the required outlet temperature set point.  This numerical framework was evaluated with a simulation of a two-stage pilot scale spray drying system at the Davis Dairy Plant (South Dakota State University) which is used for commercial contract spray drying operation.

Keywords: CFD simulation; Multi-Stage Spray Drying; P-Controller


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