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A modified steady-state model for evaluation of ammonia concentrations behind a water curtain |
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| Affiliation: | 1. Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, 38116 Braunschweig, Germany;2. Karlsruhe Institute of Technology (KIT), Kaiserstraße 12, 76131 Karlsruhe, Germany;1. School of Industrial and Systems Engineering, Center of Excellence for Intelligent-Based Experimental Mechanic, College of Engineering, University of Tehran, Iran;2. Department of Industrial Engineering, Esfarayen University of Technology, Esfarayen, 9661998195, Iran;1. Chemical Engineering Program, Texas A&M University at Qatar, Doha, Qatar;2. Electrical and Computer Engineering Program, Texas A&M University at Qatar, Doha, Qatar |
| Abstract: | Water curtain system has been proved an effective mitigation measurement for ammonia spill dispersion. Calculating of ammonia cloud concentration with water curtain was less studied. This paper presents a steady-state calculation model to calculate open and forced ammonia spill dispersion. The formula of ammonia absorption was built and integrated into the calculation model. The calculated downwind ammonia concentrations for open and forced spill dispersion were reproduced and compared with literature using a statistical method. In addition, the relationship between ammonia concentration in water droplet and the droplet diameter was studied. The results display that the formula of ammonia absorption is suitable for calculating mass transfer process between the ammonia cloud and the water curtain. The calculation model presents good performances for open and forced ammonia spill dispersion. This study indicates that the calculation model can be satisfactory in determining the impact of open and forced ammonia spill dispersion and the design of water curtain mitigation system. |
| Keywords: | Water curtain Ammonia spill dispersion Atmospheric dispersion Calculation model |
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