| Main Title |
HEGADAS: Heavy Gas Dispersion Program. User's Guide. |
| Author |
Witlox, H. W. M. ;
Puttock, J. S. ;
Colenbrander, G. W. ;
|
| CORP Author |
Shell Research Ltd., Chester (England).;Environmental Protection Agency, Research Triangle Park, NC. Office of Air Quality Planning and Standards. |
| Publisher |
Aug 88 |
| Year Published |
1988 |
| Report Number |
EPA/SW/DK-89/027A; |
| Stock Number |
PB89-164560 |
| Additional Subjects |
Dispersions ;
Gases ;
Air pollution ;
Mathematical models ;
Heat transfer ;
Evaporation ;
Water vapor ;
Documentation ;
User manuals(Computer programs)
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB89-164560 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
105p |
| Abstract |
The HEGADAS program models the dispersion of releases of heavier-than-air gases to the atmosphere. The model is an integral model which uses assumed profile (e.g., concentration profile) shapes and empirical relations describing air entrainment. The model provides for a smooth transition to passive dispersion. Descriptions of heat transfer from the ground and water vapor transfer are also included. The source release rate may be constant or time-dependent (e.g., evaporating liquid pool). |
