Comparison of Three Air Transport Models for Safety Applications under Diffusive Conditions Using Full-Scale Experimental Data: EPIcode, ALOHA, and SCIPUFF
| Autor: | Gustavious P. Williams, Richard Venedam, Patrick Sawyer, Veronica E. Wannberg |
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| Rok vydání: | 2011 |
| Předmět: |
Environmental Engineering
Meteorology Field (physics) General Chemical Engineering Detector Full scale Ranging Mechanics Geotechnical Engineering and Engineering Geology Wind speed Aloha Environmental Chemistry Environmental science Diffusion (business) Current (fluid) Waste Management and Disposal Water Science and Technology |
| Zdroj: | Journal of Hazardous, Toxic, and Radioactive Waste. 15:26-36 |
| ISSN: | 2153-5515 2153-5493 |
| Popis: | This paper compares three current state-of-the-practice models, ALOHA, EPICode, and SCIPUFF for use in safety evaluations using data from a unique full-scale field experiment under low-wind speed conditions. The experiment included the release and transport of three gases: ammonia (buoyant), ethylene (neutral buoyant), and propylene (dense) in low-wind speed (diffusion) conditions, less than 2 m/s. In total there were 30 releases ranging from 6 to 30 min in duration. The diagnostics included nine meteorology stations on 100-m centers and 36 photo ionization detectors in a radial pattern. Diffusive conditions are difficult to model, and all of the models had difficulty replicating the field measurements. However, the work does show that these models, if used correctly, are conservative (overpredict concentrations) and can be used for safety and emergency planning. |
| Databáze: | OpenAIRE |
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