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Computational Study on the Soot Blowing Method for Enhancing the Performance of the SCR System  

Seo, MoonHyeok (Environmental Aerosol Engineering Laboratory, Department of Environmental Engineering)
Chang, HyukSang (Environmental Aerosol Engineering Laboratory, Department of Environmental Engineering)
Publication Information
Particle and aerosol research / v.8, no.3, 2012 , pp. 99-110 More about this Journal
Abstract
In the SCR (selective catalytic reduction) system which is used for controlling the NOx emission from the Diesel engines, the soot deposited on the catalysis causes degradation of the system performance. Numerical study was done to evaluate the performance of soot blower which is proposed as a method for removing the soot on the catalysis. The spray conditions and the effect of the compressed air from the AIG (air inlet gun) were analyzed numerically to evaluate the overall effective method of the soot blowing. The characteristics of the final velocity distribution and velocity waves across the inlet section of the catalysis were evaluated with respect to the geometries of the AIG outlets and pressure conditions. An experimental model was used to validate the results of the numerical calculation that is used for finding the effective removal blowing momentum transfer quantities of soot the inlet section of the catalysis, and it is proposed that the required minimum blowing momentum transfer quantities are over than 0.499 $kg/m{\bullet}t_{eff}$ in the current study.
Keywords
Soot blower; SCR(selective catalytic reduction); CFD(computational fluid dynamics); Catalyst regeneration; Turbulence;
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Times Cited By KSCI : 1  (Citation Analysis)
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1 Ameya, P., Babak, E., Markus, B. and Honghi, T. (2011). Studies on Soot Blower Jet Dynamics and Ash Deposit Removal in Industrial Boiler, Fuel Processing Technology, 03113, 8-16.
2 ANSYS Inc., (2009a). FLUENT User's Guide, Ver. 12.0, ANSYS Inc..
3 ANSYS Inc., (2009b). FLUENT Theory Guide, Ver. 12.0, ANSYS Inc..
4 Beirle, S., Platt, U., Wenig, M. and Wagner, T. (2004). Estimate of Nitrogen Oxide Emission from Shipping by Satellite Remote Sensing, Geophysical Research Letters, vol. 31.
5 Ferziger, J.H. and Peric, M. (1999). Computational Methods for Fluid Dynamics, 2nd Ed., Springer Berlin, pp 23-25.
6 Ganesh, R. (1998). Advance in Understanding Supersonic Jet Screech: Review and Perspective, Progress in aerospace sciences, 34(1-2), 45-106.   DOI   ScienceOn
7 Ganesh, R. (1998). Advance in Understanding Supersonic Jet Screech: Review and Perspective, Progress in aerospace sciences, 34(1-2), 45-106.   DOI   ScienceOn
8 IMO (International Maritime Organization), 2004, 1150.
9 Jae, H. and Moon, H.(2005). Heating Element of an Air Preheater in a Utility Boiler as an SCR Reactor Removing NO by$NH_3$, Industrial and Engineering Chemistry Research, 44, 707-714.   DOI   ScienceOn
10 Khalighi, Y., Nichols, J.W., Ham, F., Lele, S.K. and Moin, P. (2010). Unstructured Large Eddy Simulation for Prediction of Noise Issued from Turbulent Jet in Various Configurations, AIAA/CEAS Aeroacoustics Conference, 6-8.
11 Park, S. and Chang, H. (2010). Numerical Study on the Baffle Structure for Determining the Flow Characteristic in small Scale SCR System, Korean Society of Environmental Engineers, 32, 862-869.
12 Park, M., Chang, H. and Zhao, D. (2011). Numerical Study on the Arrangement of AIG for Determining the$NH_3$Concentration Distribution in the Package Type of Small Scale SCR System, Korean Society of Environmental Engineers, 33, 368 - 377.
13 Park, N. and Mahesh, K. (2007). Numerical and modeling issues in LES of compressible turbulence on unstructured grids, 45th AIAA Aerospace Science Meeting and Exhibit, The American Institute of Aeronautics and Astronautics Paper ,722.
14 Rodi, R. (1997). Comparison of LES and RANS calculations of the flow around bluff bodies, Journal of Wind Engineering and Industrial Aerodynamics, 68-71, 55-75.
15 Sergejus, L., Galina, L., Egle, S. and Violeta, M. (2010). Investigating of the Performance and Emission Characteristics of Biodiesel Fuel Containing Butanol under the Conditions of Diesel Engine Operation, Energy Fuels, 24, 4503-4509.   DOI   ScienceOn
16 Tandra, D.S., Kaliazine, A., Cormack, D.E. and Tran, H.N. (2006). Numerical Simulation of Supersonic Jet Flow Using a Modified Model, International Journal of Computation Fluid Dynamic, 20, 19-27.   DOI   ScienceOn
17 Timothy, J.T. (2001). The Generation of Hexahedral Meshes for Assemble Geometry: Survey and Progress, International journal for numerical methods in engineering, 50, 2617-2.   DOI   ScienceOn