Memorias de investigación
Communications at congresses:
Study of porosity and permeability of air filter material in respiratory proptection filters.
Year:2008
Research Areas
  • Mining operation
Information
Abstract
The objective is the study of filtering tissue permeability and the characterization by means of permeability tests, of the process of coal particles retention in breath protection filters.The permeability of nine probes have been measured against particles P1, P2 and P3, with a fixed test depression of 60 Pa, before and after being used in an atmosphere containing a suspension of coal dust. Brand new filters (from factory) have different mean values of permeability to the air flow; its value doubles when the efficiency class is changed from P3 (Rm: 0,13) to P2 (Rm: 0,27) and to P1 (Rm: 0,54). In addition, after a time period of use of 120 minutes, the permeability of the filter decreases due to air particles capture, being such a diminution higher in class P2 filters (4,32 %) respect to class P1 ones (2,68%) and even lesser in class P3 ones (0,38 %).
International
Si
Congress
8th International Scientific Conference on Modern Management of Mine Producing, Geology and Environmental Protection
960
Place
Albena (Bulgaria)
Reviewers
Si
ISBN/ISSN
954918181-2
Start Date
16/06/2008
End Date
20/06/2008
From page
231
To page
239
Proceedings of the Eighth International Scientific Conference SGEM 2008
Participants
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Seguridad Industrial: atmósferas explosivas
  • Departamento: Ingeniería Química y Combustibles
  • Departamento: Sistemas Energéticos