Risques dus a la reaspiration des gaz d'echappoment par les moteurs en espace confine (Hazard from engines rebreathing exhaust in confined space).

Details

• Personal Author:
  Hurn RW ; Marshall WF
• Description:
  The Bureau of Mines conducted a series of experiments to determine the influence of exhaust rebreathing on emissions from various gasoline and diesel engines. Tests were conducted that simulated operation of engines in nonventilated spaces as well as in spaces with partially restricted ventilation. Results of these tests showed that exhaust rebreathing can have a marked effect on exhaust emissions and thus on the composition of the air in the working space. For the case of restricted ventilation, unacceptably high (greater than 50 ppm) levels of CO in the air of the working space resulted from exhaust rebreathing rates as low as 8 percent exhaust in the engine's intake. Operation in a nonventilated space resulted in highly critical CO levels (fatal in a few minutes) at times corresponding to 1 to 3 pounds of fuel consumed per 1,000 cubic feet of space. Tests involving spaces of various sizes showed that volume of the air space per se is not important--the primary variable is fuel consumed per unit volume of air space. This paper is a translation of Bureau of Mines Report of Investigations 7757. [Description provided by NIOSH]
• Subjects:
  Confined Spaces Mining Occupational Health Safety Vehicle Emissions
• Keywords:
  Mining-industry; Mining-equipment; Exhaust-gases; Diesel-emissions; Diesel-exhausts; Confined-spaces
• Series:
  Mining Publications
• ISSN:
  0007-9952
• Document Type:
  Text
• Genre:
  Journal Article
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  471-481
• Issue:
  73
• NIOSHTIC Number:
  nn:10010747
• Citation:
  Cah Notes Doc 1973 Jan; (73):471-481
• CAS Registry Number:
  Carbon monoxide (CAS RN 630-08-0)
• Federal Fiscal Year:
  1973
• Peer Reviewed:
  False
• Source Full Name:
  Cahiers de Notes Documentaires
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:7dc847c09aedf140bc731323e8446b4703641ae07d6ad9e7b7238120dab30b8f7dcaa9b938d34d035f87873a0fe7fec262d5d13dcaf290925445e82b6de3b57d
• Download URL:
  https://stacks.cdc.gov/view/cdc/233113/cdc_233113_DS1.pdf
• File Type:
  [PDF - 168.02 KB ]