Diffusion of external methane atmospheres through gaps of various sizes and widths into enclosures of different volumes and the effects of greased joints: M38-8/54E-PDF

"Fifty per cent methane-air mixtures were prepared in a cubical case containing a cylinder which was divided in half by a joint at a right angle to the longitudinal axis. The gap, joint width and internal volume were varied to determine their effects on the diffusion rate of the external mixture into the cylinder. The application of grease on the gap surface in sufficient quantities stopped the diffusion process, and the effects on the grease seal of internal pressures simulating pressure changes due to thermal cycling of electrical equipment, were briefly studied. The results showed that the seal was effective for pressures greater than those considered possible during thermal cycling"--Summary, p. [1].

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Department/Agency Natural Resources Canada. Dept. of Energy, Mines and Resources. Mines Branch.
Title Diffusion of external methane atmospheres through gaps of various sizes and widths into enclosures of different volumes and the effects of greased joints
Series Title Reprint series ;
Publication Type Series - View Master Record
Language [English]
Format Electronic
Electronic Document

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Note Cover title. "Presented to 12th International Conference of Mine-Safety Research Establishments, Dortmund, September 1967." Historical publication digitized from print 2017 [by Natural Resources Canada].
Date 1967.
Number of Pages 23 p. :
Catalogue Number
  • M38-8/54E-PDF
Departmental Catalogue Number 300133
Subject Terms Mining industry, Coal, Gases