Radon exhalation from phosphogypsum building boards: Symmetry constraints, impermeable boundary conditions and numerical simulation of a test case

Journal of Environmental Radioactivity

Volumn 86, Issue 2, 2006, Pages 164-175

  Rabi, J A ^a   Da Silva, Nivaldo C ^b  

^a UNIVERSITY OF SÃO PAULO   (Brazil)

^b DILAB/CNEN   (Brazil)

Author keywords

Mathematical modeling; Numerical simulation; Phosphogypsum; Radon

Indexed keywords

BOUNDARY CONDITIONS; COMPUTER SIMULATION; GYPSUM; MATHEMATICAL MODELS;

ACCUMULATION; PHOSPHOGYPSUM;

RADON;

CALCIUM SULFATE; PHOSPHOGYPSUM; RADON; UNCLASSIFIED DRUG;

RADON;

ARTICLE; BUILDING MATERIAL; DIFFUSION; HOUSING; INDOOR AIR POLLUTION; PERMEABILITY; SIMULATION; STEADY STATE;

CALCIUM SULFATE; CONSTRUCTION MATERIALS; PHOSPHORUS; RADON;

PHOSPHOGYPSUM;

EID: 29244435754     PISSN: 0265931X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.jenvrad.2005.08.004     Document Type: Article

References (18)

1. C.E. Andersen Radon Transport Modelling: User's Guide to RnMod3d Riso-R-1201(EN) 2000 Riso National Laboratory Roskilde, Denmark
2. R.B. Bird, W.E. Stewart, and E.N. Lightfoot Transport Phenomena 1960 John Wiley & Sons New York, USA
3. J.C. Edwards, and R.C. Bates Theoretical evaluation of radon emanation under a variety of conditions Health Physics 39 1980 263 274
4. W. Hackbusch Multi-Grid Methods and Applications 1985 Springer-Verlag Berlin, Heidelberg, Germany
5. 222Rn release from the phosphogypsum board used in housing panels Journal of Environmental Radioactivity 80 2005 153 160
6. M. Kaviany Principles of Heat Transfer in Porous Media 1994 Springer New York, USA
7. Loureiro, C.O., 1987. Simulation of the steady-state transport of radon from soil into houses with basements under constant negative pressure. Ph.D. thesis, University of Michigan, Ann Arbor, USA.
8. B. Mazzilli, V. Palmiro, C. Saucia, and M.B. Nisti Radiochemical characterization of Brazilian phosphogypsum Journal of Environmental Radioactivity 49 2000 113 122
9. A.A. Mohamad Heat transfer enhancements in heat exchangers fitted with porous media. Part I: constant wall temperature International Journal of Thermal Sciences 42 2003 385 395
10. W.W. Nazaroff Radon transport from soil to air Reviews of Geophysics 30 1992 137 160
11. W.W. Nazaroff, and K. Teichman Indoor radon: exploring US federal policy for controlling human exposures Environmental Science Technology 24 1990 774 782
12. A.V. Nero Radon and its decay products in indoor air: an overview W.W. Nazaroff A.V. Nero Radon and its Decay Products in Indoor Air 1988 John Wiley and Sons New York, USA
13. M.N. Özişik Heat Transfer - A Basic Approach 1985 McGraw-Hill New York, USA
14. J.A. Rabi, and A.A. Mohamad Radon-222 exhalation rates from phosphogypsum-bearing embankment subjected to constant temperature and fixed activity concentration Journal of Porous Media 8 2005 175 191
15. W.J. Riley, A.L. Robinson, A.J. Gadgil, and W.W. Nazaroff Effects of variable wind speed and direction on radon transport from soil into buildings: model development and exploratory results Atmospheric Environment 33 1999 2157 2168
16. E. Stranden, and L. Berteig Radon in dwellings and influencing factors Health Physics 39 1980 275 284
17. UNSCEAR - United Nations Scientific Committee on the Effects of Atomic Radiation Sources and Effects of Ionizing Radiation 2000 U.N. New York
18. C. Yu, C. Loureiro, J.J. Cheng, L.G. Jones, Y.Y. Wang, Y.P. Chia, and E. Faillace Data Collection Handbook to Support Modeling Impacts of Radioactive Materials in Soil 1993 Argonne National Laboratory Argonne, USA