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Numerical Investigation of the Flow inside the Scrubber Unit for different Spray Installation Angles
Kumaresh Selvakumar(쿠마레스 셀와쿠마르),Man Young Kim(김만영),Jung Young Gweon(정영권),Namil Kim(김남일) 한국산학기술학회 2014 한국산학기술학회 학술대회 Vol.- No.-
Scrubbers are effective to get rid of SO₂ pollutants from flue gases and it is based on the applications of scrubbing of marine engine exhaust gases by spraying sea-water. In order to examine the flow characteristics inside the scrubber, the model is designed with flow properties of hot air and water sprayer. The flow dynamics of evaporation of hot air by the injection of water is the key factor considered in this paper. The flow behavior inside the scrubber was investigated from the previous works and to sum up the hollow cone water sprayer installation angles of 0, 10, 20 and 30 degrees where installed and are altered for the better performance in the scrubber design.
Kumaresh Selvakumar,Man Young Kim 대한기계학회 2016 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.30 No.2
New technologies have been adopted by the marine industry to control the air emission from ship. Wet scrubbers have found widespread use in cleaning contaminated gas streams by the application of scrubbing of marine engine exhaust gases by spraying sea-water and thus develop their ability to remove particulates like SO X for pollution free environment. In real case problems, to control the emission of SO X in scrubber, the temperature of the flue gases should be dropped down by spraying sea-water droplets which brings down the lifetime of harmful pollutants. In order to examine the flow characteristics inside the scrubber, the computer simulation methodology is carried out in this paper with the boundary conditions of hot air at ideal gas state and water droplets injection using lagrangian method. During the impact of injecting water droplets over the hot air, the nature invites evaporation of hot air which is the obvious benefit of scrubber in diminishing the domain temperature. After the numerical analysis, if the model is observed with reasonable reduction in domain temperature, the optimum scrubber design can be elected for pollutant emission control in real case problems. From the assessment of possible impacts of pollutants from marine industry, the temperature of the system are in need of investigation facilitating the evaporation rate of water droplets and the computation of droplets concentration over the entire domain to bring out the competent modeling. The numerical analysis using CFD facilitates in understanding the problem better over its entire operating envelope.