Browse > Article
http://dx.doi.org/10.14775/ksmpe.2022.21.02.001

Computational Study on the Application of Porous Media to Fluid Flow in Exhaust Gas Scrubbers  

Hong, Jin-pyo (Graduate School of Advanced Defense Engineering, Changwon National University)
Yoon, Sang-hwan (Graduate School of Advanced Defense Engineering, Changwon National University)
Yoon, Hyeon-kyu (Graduate School of Advanced Defense Engineering, Changwon National University)
Kim, Lae-sung (Graduate School of Advanced Defense Engineering, Changwon National University)
An, Jun-tae (Graduate School of Mechanical Engineering, Changwon National University)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.21, no.2, 2022 , pp. 1-10 More about this Journal
Abstract
Exhaust gases emitted from internal combustion engines contain nitrogen oxides (NOx) and sulfur oxides (SOx), which are major air pollutants causing acid rain, respiratory diseases, and photochemical smog. As a countermeasure, scrubber systems are being studied extensively. In this study, the pressure drop characteristics were analyzed by changing the exhaust gas inflow velocity using a scrubber for a 700 kW engine as a model. In addition, the fluid flow inside the scrubber and the behavioral characteristics of the droplets were studied using CFD, and the design compatibility of the cleaning device was verified. Flow analysis was performed using inertial and viscous resistances by applying porous media to the complex shape of the scrubber. The speed of the exhaust passing through the outlet nozzle from the inlet was determined through the droplet behavior analysis by spraying, and the flow characteristics for the pressure drop were studied. In addition, it was confirmed through computational analysis whether there was a stagnation section in the exhaust gas flow in the scrubber or the sprayed droplets were in good contact with the exhaust gas.
Keywords
Porous Media; Droplet; NOx; SOx; Scrubber;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Kim, I. C., Kim, C. G., Park, S. J., Cho, D. Y. and Lee, Y. H., "Designation of fuel oil scrubber nozzle positioning using CFD analysis and PIV methods," Journal of the Korean Society of Marine Engineering, Vol. 39, Vo. 7, pp. 773-778, 2015.   DOI
2 Son, K., Lee, J. Y., and Park, K. H., "The effect of spray flow rate, aspect ratio, and filling rate of wet scrubber on smoke reduction," Journal of the Korean Society of Marine Engineering, Vol. 39, No. 3, pp. 217-222, 2015.   DOI
3 Choi, J. S., Kim, J. G., Park, B. H. and Lee, J. Y., "Study on wet scrubber for SOx/NOx treatment in ship flue gas," Journal of Korean Oil Chemists Society, Vol. 34, No. 1, pp. 183-188, 2017.
4 Lee, C. H., Jang, H. S. and Koo, S. M., "Computational analysis on the control of droplet entrained in the exhaust from the spray type scrubber system," Clean Technology, Vol. 21, No. 3, pp. 191-199, 2015.   DOI
5 Heo, J. S., "Numerical Analysis of Fluid Flow and Thermal Characteristics within Medium and Large Size Ship Scrubber System," A Thesis for a Master, Wonkwang University, Republic of Korea, 2016.
6 Gant, S. E., CFD Modelling of water spray barriers, Health & Safety Laboratory, pp. 11-31 2006.
7 Lee, S. M., Kwon, B. M. and Park, K. H., "Flow characteristics according to internal structure of square wet scrubber," Journal of Advanced Marine Engineering and Technology, Vol. 43, No. 1, pp. 1-7, 2019.   DOI
8 Bae, J. H., Bae, M. A., Ahn, J. K., Kim, M. H., Kang S. J. and Lee M. S., "Computational Fluid Dynamic(CFD) for Design of Mist Eliminator," Journal of the Korea Academia Industrial Cooperation Society Fall Conference, 2011.
9 Min, K. S., Kim, D. H., Chan, W. S., Lee, S. Y., Jang, S. P. and Koo, J., "Experimental Study of Pressure Drop in Compressible Fluid through Porous Media," Journal of the Korean Society of Mechanical Engineers, Vol. 37, No. 8, pp. 759-765, 2013.