Droplet dispersion angle measurements on a Pease-Antony Venturi scrubber

Abstract

-A Pease-Anthony Venturi scrubber is a gas cleaning device that uses liquid, injected in the equipment as jets, to remove contaminants from the gas. The liquid jet is atomized into droplets, which are dispersed throughout the equipment due to the turbulence. The performance of the scrubber is affected by the spatial distribution of the droplets. Although CFD models have been used to predict the droplet dispersion, these models are expensive. Alternatively, the concept of "jet spreading angle" could be used as a simple and quick way to estimate droplet dispersion. The purpose of this paper is to measure the spreading angle of jets transversally injected into the throat of a Venturi scrubber and correlate it with both gas and jet velocities. The throat gas velocities varied between 59 and 74 m/s and the jet velocity between 3.18 and 19.1 m/s. The angles were measured through image analysis, obtained with high velocity photography. The spreading angle was found to be strongly dependent on jet velocity.

Pressure Drop and Liquid Distribution in a Venturi Scrubber: Experimental Data and CFD Simulation

“…The camcorder was placed as close to the glass wall as possible. The distance between the camcorder and the center of the channel was 2 cm …”

Avaliação de desempenho e simulação em CFD de Lavador Venturi Industrial.

“…, Alonso et al(2001), Costa et al(2004) e dão uma boa ideia das publicações com experimentos de tamanho das gotas. Puentes et al(2012) visualizaram e mediram o ângulo de dispersão de gotas em um Pease-Anthony lavador de gases tipo Venturi.…”