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A numerical study on the fluid flow and thermal characteristics inside the scrubber with water injection

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Abstract

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 SOX for pollution free environment. In real case problems, to control the emission of SOX 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.

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Authors and Affiliations

  1. Department of Aerospace Engineering, Chonbuk National University, Chonbuk, 561-756, Korea

    Kumaresh Selvakumar & Man Young Kim

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  1. Kumaresh Selvakumar
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  2. Man Young Kim
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Correspondence to Man Young Kim.

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Recommended by Associate Editor Chang Yong Park

Kumaresh Selvakumar is the bachelor degree holder in Aeronautical Engineering from Kumaraguru College of Technology, India. Presently, he is pursuing his M.S. course in Aerospace Engineering at Chonbuk National University, Republic of Korea. His current research interests include catalytic combustor, surface chemical kinetics, gas turbine combustion and computational numerical analysis.

Man Young Kim received his B.S. degree in Mechanical Engineering from Pusan National University, Korea in 1992. He then took his M.S. and Ph.D. degrees in Aerospace Engineering from KAIST, Korea in 1994 and 1999, respectively. Since then, he worked for Powertrain R&D Center in Hyundai Motor Company as a senior researcher up to 2004. He is currently a faculty member in the Department of Aerospace Engineering at Chonbuk National University in Jeonju, Korea. He spent 1.5 years at Georgia Institute of Technology, USA as a visiting professor from 2009 to 2010. His research interests include propulsion and combustion, radiative heat transfer, radiation related combustion and heat transfer phenomena, and development of diesel aftertreatment systems such as DPF and SCR.

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Selvakumar, K., Kim, M.Y. A numerical study on the fluid flow and thermal characteristics inside the scrubber with water injection. J Mech Sci Technol 30, 915–923 (2016). https://doi.org/10.1007/s12206-016-0145-2

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  • DOI: https://doi.org/10.1007/s12206-016-0145-2

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