Experimental and numerical study of heavy gas dispersion in a ventilated room

Autor:	Laurent Bouilloux, Corinne Prevost, Roger Sestier-Carlin, Laurent Ricciardi
Přispěvatelé:	Institut de Radioprotection et de Sûreté Nucléaire (IRSN)
Rok vydání:	2008
Předmět:	Nuclear fuel cycle Health Toxicology and Mutagenesis Nuclear engineering 0211 other engineering and technologies Thermal stratification 02 engineering and technology 7. Clean energy Gas tracing room ventilation Fluorides chemistry.chemical_compound sensitivity analysis 021105 building & construction 0202 electrical engineering electronic engineering information engineering sulfur derivative Radioactive Waste Management and Disposal comparative study [PHYS]Physics [physics] Air Movements Air Pollutants concentration (composition) sulphur hexafluoride gas analysis Nuclear fuel article Radioactive waste Computer simulation Uranium Heavy gas Pollution Occupational unclassified drug Air Pollution Indoor dispersion Gases airflow Environmental Engineering 020209 energy Airflow Sulfur Hexafluoride chemistry.chemical_element computational fluid dynamics Air Pollutants Occupational Computational fluid dynamics Flow rate experimental study uranium stratification trace gas Air Pollution TRACER Accidents Occupational Environmental Chemistry Indoor business.industry Environmental engineering accident Uranium Compounds Ventilation Uranium hexafluoride chemistry Air Pollutants Radioactive Nuclear fuels Accidents CFD simulation Numerical methods numerical model business mathematical model
Zdroj:	Journal of Hazardous Materials Journal of Hazardous Materials, Elsevier, 2008, 152 (2), pp.493-505. ⟨10.1016/j.jhazmat.2007.07.034⟩
ISSN:	0304-3894 1873-3336
Popis:	In order to better evaluate the consequences of an accidental release of heavy gas, such as uranium hexafluoride (UF6), in some installations in the nuclear fuel cycle, an experimental and numerical study was conducted by IRSN on heavy gas dispersion in a ventilated room. This study was based on about 20 injection configurations of a large quantity of a heavy tracer gas, sulphur hexafluoride (SF6), inside two ventilated rooms of different sizes. Stratification of the tracer gas was detected in all the configurations studied, even at low concentrations. Numerical simulations performed with the multidimensional CFX code enabled the stratification and the concentration levels reached in the rooms to be predicted overall, and the higher the air flow rate, the more satisfactory the comparison between simulation and experiment. © 2007 Elsevier B.V. All rights reserved.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8b7aa46244fea488213958275ae47d8b https://doi.org/10.1016/j.jhazmat.2007.07.034 Zobrazit plný text záznamu Full Text from ScienceDirect