Evaluation of the models available for the prediction of pressure drop in venturi scrubbers

Predicting pressure drop in venturi scrubbers with artificial neural networks

“…training and simulating), the effect of various parameters such as throat gas velocity, liquid to gas ratio and distance along venturi on the pressure drop of the venturi scrubber were obtained. The effects of the three parameters L/G, V g th and z on the pressure drop in venturi scrubbers have been investigated in different works previously [6,5,2,3,10]. The simulated results for ANN No.…”

“…Viswanathan [18] investigated the effect of liquid to gas ratios, throat gas velocities, and throat areas and introduced a simple empirical correlation for the pressure drop in a variable throat venturi scrubber. Gonçalves et al [10] studied the previous models for the prediction of pressure drop in venturi scrubbers and stated that most of them must be used with caution. Gamisans et al [9] studied the effect of throat diameter, length and spray angle on the performance of ejector venturi scrubbers.…”

Performance estimation of a Venturi scrubber using a computational model for capturing dust particles with liquid spray

“…The pressure drop in the Venturi scrubber is caused by mechanisms such as (a) momentum change of the gas; (b) momentum change of the droplets; (c) friction; (d) momentum change of the liquid film; and (e) gravity [3]. Azzopardi et al [6] examined the relative importance of the above five components of pressure drop.…”

“…Interactions between gas and liquid droplets, atomization of the liquid jet, droplet breakup and collision, and interactions between liquid droplets and dust particles (collision and capturing) also occur. Due to these complex phenomena, the experimental correlations or simple models have been used so far to predict the performance [3]. These methods have limits on the performance prediction when the Venturi geometry or the operation condition changes.…”

Study of Venturi Scrubber Efficiency for Pesticide Industry

“…The channelised emission is a point source emission from process operations and the fugitive emission is an uncontrolled emission from storage tanks/drums, spils, leaks, overflows etc. In order to identify the various sources of process emissions and their control systems in pesticide industries a questionnaire survey and in-depth study of some pesticide industries were conducted [5][6][7]. The manufacturing process for a product is a combination of various unit operations and unit process.…”