RI 7991 Ventilation Eddy Zones at a Model Coal Mine Working Face
- Organization:
- The National Institute for Occupational Safety and Health (NIOSH)
- Pages:
- 17
- File Size:
- 569 KB
- Publication Date:
- Jan 1, 1974
Abstract
Tracer gas decay curves were experimentally obtained in a full-scale model coal mine working face area. The concentration of tracer gas was found to decay in exponential fashion but with a change in slope. This change in slope is attributed to eddy zones in the face area. A simple theory was developed that allows one to calculate the approximate amount of gas in the eddy zones and thus estimate the size of the eddy zones.
Citation
APA: (1974) RI 7991 Ventilation Eddy Zones at a Model Coal Mine Working Face
MLA: RI 7991 Ventilation Eddy Zones at a Model Coal Mine Working Face. The National Institute for Occupational Safety and Health (NIOSH), 1974.