Abstract

Computational Fluid Dynamics (CFD) usesnumerical methods and algorithms to solve and analyzeproblems that involve fluid flows. This paper describes theapplication of a commercial CFD code, to Simulation of FlowBehavior within Spray Tower Scrubber, focusing on silicaparticles. First a ventilation system was designed andconstructed for pilot study. It was designed according tovelocity pressure method balanced system design stated byVS-15-01 recommendation offered by ACGIH. Fluent packageof Ansys, Inc is used to model and simulate this problem.Efficiency of inhalable pollutant particle collection hasincreased (P–Value < 0.05) with the increase of the flow rate.Also, with increase in the flow rate, collection efficiency ofparticles was increases (P–Value< 0.05). From the simulationexperimentations, the residuals do a very good job ofconverging at approximately 2460 iterations at inlet velocities of11.176 m/s. In general, the CFD simulation can improveefficiency, reduce cost, and shorten experimental periods. It canalso provide insights for optimal equipment design. With theincrease of water flow rate the collection efficiency of inhalableand non-inhalable particles of silica particles increases. This isdue to the increase of surface contact of water droplets withpollutant, which has caused the efficiency of the system. Futurework should focuses on an improved prediction of droplet sizedistribution in order to enhance dust-capturing calculation.