Calculation of air-permeable rigid pipelines
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Abstract
Calculation of mine air ducts by analytical and graphoanalytical methods is mainly reduced to the determination of two quantities: 1) air leakage or the delivery coefficient μ; 2) the head h, which must be provided so that a given amount of air Qzab reaches the end of the stack of pipes. Many formulas for calculating these values have been proposed. A. I. Shvyrkov, on the basis of theoretical studies of air movement in air‑permeable pipelines, established a functional dependence between these quantities.
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References
- Shvyrkov A. I. On air losses in ventilation of mines. Bezopasnost’ truda v gornoi promyshlennosti, 1938, No. 9 and 10.
- Voropaev A. F. Work of fans, successively included on one pipeline. Gornyi zhurnal, 1947, No. 1.
- Voronin V. N. Fundamentals of Mine Aero-Gasodynamics. Ugletekhizdat, 1951.
- Skochinsky A. A. and Komarov V. B. Mine Ventilation. Ugletekhizdat, 1959.
- Mustel P. I. Ventilation of Mines. Metallurgizdat, 1957.
- Michelin W. Rev. ind. minerale, 1944, III.
- Schmidt W. Bergbau-Rundschau, 1957, N 8, 9.
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