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Computational Analysis on the Control of Droplet Entrained in the Exhaust from the Spray Type Scrubber system
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  • Journal title : Clean Technology
  • Volume 21, Issue 3,  2015, pp.191-199
  • Publisher : The Korean Society of Clean Technology
  • DOI : 10.7464/ksct.2015.21.3.191
 Title & Authors
Computational Analysis on the Control of Droplet Entrained in the Exhaust from the Spray Type Scrubber system
Lee, Chanhyun; Chang, Hyuksang; Koo, Seongmo;
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The SOx emission from the ship diesel engines will do a negative influence to the human health and the environment. To reduce the negative environmental effect of the SOx emission caused by the high traffic of ship movements, the SECA (SOx emission control area) has been set on several province around world to carry out the severe emissions control and to meet the emissions control standard. To cut down the SOx emission from the ships, the wet type scrubber is being used widely. In this work, we prepared a numerical model to simulate the spray type scrubber to study the motion of liquid droplets in the flow of the scrubber. For the analysis, the CFD (computational fluid dynamics) method was adopted. As a special topic of the study, we designed the wave plate type of mist eliminator to check the carry over of the uncontrolled water droplet to the exhaust. Numerical analysis is divided into two stages. At the first stage, the analysis was done on the basic scrubber without the mist eliminator, and then the second stage of analysis was done on the scrubber with the mist eliminator on several condition to check and compare with the basic scrubber. On the condition of the basic scrubber, 42.0% of the distributed water droplets were carried over to the exhaust. But by adding the designed droplet eliminator at the exhaust of the scrubber, only 3.4% of the distributed water droplets supplied to the scrubber was emitted to the atmosphere.
Spray type Scrubber;Computational fluid dynamics (CFD);Mist eliminator;
 Cited by
Lee, G. H., and Song, M. S., “Some Issues on the International Regulations Associated with the Air Pollution Caused by the SOx Emission at Sea,” J. Korean Soc. Mar. Environ. Energy., 11(4), 221-226 (2008).

Anders, A., and Mayer, S., “Use of Seawater Scrubbing for SO2 Removal from Marine Engine Exhaust Gas,” Energy Fuels, 21(6), 3274-3279 (2007). crossref(new window)

Danzomo, B. A., Salami, M. E., Khan, R. M., and Nor, M. I. B. M., “CFD Based Parametric Analysis of Gas Flow in a Counter Flow Wet Scrubber System,” Int. J. Environ. Protection and Policy, 1(2), 16-23 (2013). crossref(new window)

Ghetti, S., "Investigation of Entrainment Phenomena in Inertial Separators," Master's Thesis, University of Pisa, Pisa, Italy (2003).

Kavousi, F., Behjat, Y., and Shahhosseini, S., “Optimal Design of Drainage Chennel Geometry Parameters in Vane Demister Liquid-gas Separators,” Chem. Eng. Res. Des., 91, 1212-1222 (2013). crossref(new window)

ANSYS, "ANSYS 15.0 CFX-Theory Guide," ANSYS Inc(2013).

Reitz, R. D., “Modeling Atomization Processes in High Pressure Vaporizing Sprays,” Atomisation Spray Technol., 3, 309-337 (1987).

Azzopardi, B. J., and Sanaullah, K. S., “Re-entrainment in Wave-plate Mist Eliminators,” Chem. Eng. Sci., 57, 3557-3563 (2002). crossref(new window)

Galletti, C., Brunazzi, E., and Tognotti, L., “A Numerical Models for Gas Flow and Droplet Motion in Wave-plate Mist Eliminators with Drainage Channels,” Chem. Eng. Sci., 63, 5639-5652 (2008). crossref(new window)

Brunazzi, E., and Paglianti, A., “Design of Wire Mesh Mist Eliminators,” AIChE. J., 44(3), 505-512 (1998). crossref(new window)

Wang, Y., and James, P. W., “The Calculation of Wave-plate Demister Efficiencies Using Numerical Simulation of the Flow Field and Droplet Motion,” IChemE., 76, 980-985 (1998). crossref(new window)

James, P. W., Wang Y., Azzopardi, B. J., and Hughes, J. P., “The Role of Drainage Channels in the Performance of Wave-plate Mist Eliminators,” IChemE., 81, 639-648 (2003). crossref(new window)

James, P. W., Azzopardi, B. J., Wang Y., and Hughes, J. P., “A Model for Liquid Film Flow and Separation in a Wave-plate Mist Eliminator,” IChemE., 83(A4), 469-477 (2005). crossref(new window)

Narimani, E., and Shahhoseini, S., “Optimization of Vane Mist Eliminators,” Appl. Therm. Eng., 31, 188-193 (2011). crossref(new window)

Estakhrasar, M. H. H., and Rafee, R., “Effect of Drainage Channel Dimensions on the Performance of Wave-plate Mist Eliminators,” Korean. J. Chem. Eng., 30(6), 1301-1311 (2013). crossref(new window)

Lee, S. Y., Song, D. G., Hong, W. S., Shin, W. H., Kim, G. J., and Kim, H. S., “Numerical and Experimental Study on Separation Efficiency of a Vane Mist Eliminator,” Proceeding of Korean Society of Mechanical Engineers Spring Conference, 118-119 (2013).