| 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 |
| Subjects |
Dispersions;
Gases;
Air pollution;
Mathematical models;
Heat transfer;
Evaporation;
Water vapor;
Documentation;
User manuals(Computer programs)
|
| Holdings |
| Library |
|
Call Number |
Additional Info |
Location |
Date Modified |
| NTIS |
|
PB89-164560 |
Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. |
NTIS |
08/24/1989 |
|
| 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). |
| Supplementary Notes |
For system on diskette, see PB89-164552. Sponsored by Environmental Protection Agency, Research Triangle Park, NC. Office of Air Quality Planning and Standards. |
| Category Codes |
68A#; 91A; 43F; 62 |
| NTIS Prices |
PC A06/MF A01 |
| Primary Description |
200/04 |
| Document Type |
NT |
| Control Number |
914521388 |
| Cataloging Source |
NTIS/MT |
| Origin |
NTIS |
| Type |
CAT |
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