Browse > Article
http://dx.doi.org/10.5572/ajae.2016.10.3.125

Mitigation of Ammonia Dispersion with Mesh Barrier under Various Atmospheric Stability Conditions  

Gerdroodbary, M. Barzegar (Department of Mechanical Engineering, Babol University of Technology)
Mokhtari, Mojtaba (Department of Chemical and Petroleum Engineering, Sharif University of Technology)
Bishehsari, Shervin (Department of Mechanical Engineering, Central Tehran Branch, Islamic Azad University)
Fallah, Keivan (Department of Mechanical Engineering, Sari Branch, Islamic Azad University)
Publication Information
Asian Journal of Atmospheric Environment / v.10, no.3, 2016 , pp. 125-136 More about this Journal
Abstract
In this study, the effects of the mesh barrier on the free dispersion of ammonia were numerically investigated under different atmospheric conditions. This study presents the detail and flow feature of the dispersion of ammonia through the mesh barrier on various free stream conditions to decline and limit the toxic danger of the ammonia. It is assumed that the dispersion of the ammonia occurred through the leakage in the pipeline. Parametric studies were conducted on the performance of the mesh barrier by using the Reynolds-averaged Navier-Stokes equations with realizable k-${\varepsilon}$ turbulence model. Numerical simulations of ammonia dispersion in the presence of mesh barrier revealed significant results in a fully turbulent free stream condition. The results clearly show that the flow behavior was found to be a direct result of mesh size and ammonia dispersion is highly influenced by these changes in flow patterns in downstream. In fact, the flow regime becomes laminar as flow passes through mesh barrier. According to the results, the mesh barrier decreased the maximum concentration of the ammonia gas and limited the risk zone (more than 500 ppm) lower than 2 m height. Furthermore, a significant reduction occurs in the slope of the upper boundary of $NH_3$ risk zone distribution at downstream when a mesh barrier is presented. Thus, this device highly restricts the leak distribution of ammonia in the industrial plan.
Keywords
Atmospheric dispersion; Mesh barrier; Ammonia; Numerical simulation; Accidental release;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Amini, Y., Mokhtari, M., Haghshenasfard, M., Gerdroodbary, M.B. (2015) Heat transfer of swirling impinging jets ejected from Nozzles with twisted tapes utilizing CFD technique. Case Studies in Thermal Engineering 6, 104-115.   DOI
2 Barzegar Gerdroodbary, M., Fayazbakhsh, M.A. (2011) Numerical Study on Heat Reduction of Various Counterflowing Jets over Highly Blunt Cone in Hypersonic. International Journal of Hypersonics 2, 1-13.   DOI
3 Barzegar Gerdroodbary, M., Bishesari, Sh., Hosseinalipour, S.M., Sedighi, K. (2012) Transient Analysis of Counterflowing Jet over Highly Blunt Cone in Hypersonic Flow. Acta Astronautica 73, 38-48.   DOI
4 Barzegar Gerdroodbary, M., Ganji, D.D., Amini, Y. (2015) Numerical study of shock wave interaction on transverse jets through multiport injector arrays in supersonic crossflow. Acta Astronautica 115, 422-433.   DOI
5 Barzegar Gerdroodbary, M., Hosseinalipour, S.M. (2010) Numerical simulation of hypersonic flow over highly blunted cones with spike. Acta Astronautica 67, 180-193.   DOI
6 Barzegar Gerdroodbary, M., Imani, M., Ganji, D.D. (2014) Heat reduction using conterflowing jet for a nose cone with Aerodisk in hypersonic Flow. Aerospaces Sciences and Technology 39, 652-665.   DOI
7 Barzegar Gerdroodbary, M., Imani, M., Ganji, D.D. (2015) Investigation of film cooling on nose cone by a forward facing array of micro-jets in Hypersonic Flow. International Communications in Heat and Mass Transfer 64, 42-49.   DOI
8 Barzegar Gerdroodbary, M., Jahanian, O., Mokhtari, M. (2015) Influence of the Angle of Incident Shock Wave on Mixing of Transverse Hydrogen Micro-jets in Supersonic Crossflow. International Journal of Hydrogen Energy 40, 9590-9601.   DOI
9 Barzegar Gerdroodbary, M., Rahimi Takami, M., Ganji, D.D. (2015) Investigation of thermal radiation on traditional Jeffery-Hamel flow to stretchable convergent/ divergent channels. Case Studies Thermal Engineering 6, 28-39.   DOI
10 Barzegar Gerdroodbary, M., Takami, M.R., Heidari, H.R., Fallah, K., Ganji, D.D. (2016) Comparison of the single/ multi Transverse jets under the influence of shock wave in Supersonic Crossflow. Acta Astronautica 123, 283-291.   DOI
11 Bouet, R., Duplantier, S., Salvi, O. (2005) Ammonia large scale atmospheric dispersion experiments in industrial configurations. Journal of Loss Prevention in the Process Industries 18, 512-519.   DOI
12 Bubbico, R., Mazzarotta, B., Verdone, N. (2014) CFD analysis of the dispersion of toxic materials in road tunnels. Journal of Loss Prevention in the Process Industries 28, 47-59.   DOI
13 Cheng, Ch., Tan, W., Liu, L. (2014) Numerical simulation of water curtain application for ammonia release dispersion. Journal of Loss Prevention in the process Industries 30, 105-112.   DOI
14 Dandrieux, A., Dusserre, G., Ollivier, J., Fournet, H. (2001) Effectiveness of water curtains to protect firemen in case of an accidental release of ammonia: comparison of the effectiveness for two different release rates of ammonia. Journal of Loss Prevention in the Process Industries 14, 349-355.   DOI
15 Di Sabatino, S., Buccolieri, R., Pulvirenti, B., Britter, R. (2008) Flow and pollutant dispersion in street canyons using FLUENT and ADMS-Urban. Environmental Modeling and Assessment 13, 369-381.   DOI
16 Galeev, A.D., Ponikarov, S.I. (2014) Numerical analysis of toxic cloud generation and dispersion: A case study of the ethylene oxide spill. Process Safety and Environmental Protection 92, 702-713.   DOI
17 Jeong, S.J. (2014) Effect of Double Noise-Barrier on Air Pollution Dispersion around Road, Using CFD. Asian Journal of Atmospheric Environment 8(2), 81-88.   DOI
18 Galeev, A.D., Starovoytova, E.V., Ponikarov, S.I. (2013a) Numerical simulation of the consequences of liquefied ammonia instantaneous release using FLUENT software. Process Safety and Environmental Protection 91, 191-201.   DOI
19 Galeev, A.D., Salin, A.A., Ponikarov, S.I. (2013b) Consequence analysis of aqueous ammonia spill using computational fluid dynamics. Journal of Loss Prevention in the Process Industries 26, 628-638.   DOI
20 Huang, C.H. (1979) Theory of dispersion in turbulent shear flow. Atmospheric Environment 13, 453-463.   DOI
21 Khan, F.I., Abbasi, S.A. (1999a) Modelling and control of the dispersion of hazardous heavy gases. Journal of Loss Prevention in the Process Industries 12, 235-244.   DOI
22 Khan, F.I., Abbasi, S.A. (1999b) HAZDIG: a new software package for assessing the risks of accidental release of toxic chemicals. Journal of Loss Prevention in the Process Industries 12, 167-181.   DOI
23 Khan, F.I., Abbasi, S.A. (2000) Cushioning the impact of toxic release from runaway industrial accidents with greenbelts. Journal of Loss Prevention in the Process Industries 13, 109-124.   DOI
24 Labovsky, J., Jelemensky, L′. (2011) Verification of CFD pollution dispersion modelling based on experimental data. Journal of Loss Prevention in the Process Industries 24, 166-177.   DOI
25 Mack, A., Spruijt, M.P.N. (2013) Validation of OpenFoam for heavy gas dispersion applications. Journal of Hazardous Materials 262, 504-516.   DOI
26 Ng, W.Y., Chau, C.K. (2014) A modeling investigation of the impact of street and building configurations on personal air pollutant exposure in isolated deep urban canyons. Science of the Total Environment 468-469.
27 Schulte, N., Snyder, M., Isakov, V., Heist, D., Venkatram, A. (2014) Effects of solid barriers on dispersion of roadway emissions. Atmospheric Environment 97, 286-295.   DOI
28 Pandya, N., Gabas, N., Marsden, E. (2012) Sensitivity analysis of Phast's atmospheric dispersion model for three toxic materials (nitric oxide, ammonia, chlorine). Journal of Loss Prevention in the Process Industries 25, 20-32.   DOI
29 Pasquill, F. (1961) The estimation of the dispersion of windborne material. The Meteorological Magazine 90(1063), 33-49.
30 Riddle, A., Carruthers, D., Sharpe, A., McHugh, C., Stocker, J. (2004) Comparison between FLUENT and ADMS for atmospheric dispersion modeling. Atmospheric Environment 38, 1029-1038.   DOI
31 Sini, J.F., Anquetin, S., Mestayer, P.G. (1996) Pollutant dispersion and thermal effects in urban street canyons. Atmospheric Environment 30, 2659-2677.   DOI
32 Sklavounos, S., Rigas, F. (2004) Validation of turbulence models in heavy gas dispersion over obstacles. Journal of Hazardous Materials 108, 9-20.   DOI
33 Steffens, J.T., Heist, D.K., Perry, S.G., Zhang, K.M. (2013) Modeling the effects of a solid barrier on pollutant dispersion under various atmospheric stability conditions. Atmospheric Environment 69, 76-85.   DOI
34 Steffens, J.T., Wang, Y.J., Zhang, K.M. (2012) Exploration of effects of a vegetation barrier on particle size distributions in a near-road environment. Atmospheric Environment 50, 120-128.   DOI
35 Tauseef, S.M., Rashtchian, D., Abbasi, S.A. (2011) CFDbased simulation of dense gas dispersion in presence of obstacles. Journal of Loss Prevention in the Process Industries 24, 371-376.   DOI
36 Vallero, D., Isukapalli, S. (2014) Simulating real-world exposures during emergency events: Studying effects of indoor and outdoor releases in the Urban Dispersion Program In upper Manhattan, NewYork. Journal of Exposure Science and Environmental Epidemiology 24, 279-289.   DOI