Mining Institute, Ural Branch, Russian Academy of Sciences, (Perm, Russia)
E. L. Grishin, Head of Industrial Safety Subdivision, Candidate of Engineering Sciences, Associate Professor
E. V. Nakaryakov, Head of Mine Ventilation Subdivision, Candidate of Engineering Sciences, nakariakovev@gmail.com
S. A. Bublik, Junior Researcher
A. N. Starikov, Engineer
One of the present-day topical problems in mine ventilation is airing of work spaces and traffic routes of internal combustion engine machines. Each operating machine emits exhaust gases containing toxic components. The major method of mitigation of toxic components is their dilution with fresh air down to sanitary standards. However, implementation of this measure is complicated by a few factors. This article describes the research findings on the influence exerted by the duty cycle and individual performance parameters of a turbo-diesel on the quality of mine air. The governing factors of change in exhaust gas emission and in concentration of toxic components in exhaust gases are discussed. The studies made it possible to revise calculation of the required air flow to ensure sanitary standards in underground openings with operating machinery with internal combustion engines. During mineral handling, the engine duty cycle features an average speed and a high torque, and concentration of toxic components increases though exhaust gas emission decreases. Considering the fact that exhaust gas emission during operation of turbocharging is to a greater extent governed be the engine speed, the research findings on determination of actual working range of the turbocharging system were updated. The results on exhaust gas emission calculated with and without regard to the turbocharging factor were compared.
The study was supported by the Ministry of Science and Higher Education of the Russian Federation within the framework of state contract, R&D State Registration No. 126012716039–2.
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