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Morla, Ramakrishna, Karekal, Shivakumar, Godbole, Ajit, Bhattacharjee, Ram Madhab, Nasina, Balasubrahmanyam, Inumula, Satyanarayana. (1398). Effect of ventilation air velocities on diesel particulate matter dispersion in underground coal mines. , 53(2), 117-121. doi: 10.22059/ijmge.2019.264023.594755
Ramakrishna Morla; Shivakumar Karekal; Ajit Godbole; Ram Madhab Bhattacharjee; Balasubrahmanyam Nasina; Satyanarayana Inumula. "Effect of ventilation air velocities on diesel particulate matter dispersion in underground coal mines". , 53, 2, 1398, 117-121. doi: 10.22059/ijmge.2019.264023.594755
Morla, Ramakrishna, Karekal, Shivakumar, Godbole, Ajit, Bhattacharjee, Ram Madhab, Nasina, Balasubrahmanyam, Inumula, Satyanarayana. (1398). 'Effect of ventilation air velocities on diesel particulate matter dispersion in underground coal mines', , 53(2), pp. 117-121. doi: 10.22059/ijmge.2019.264023.594755
Morla, Ramakrishna, Karekal, Shivakumar, Godbole, Ajit, Bhattacharjee, Ram Madhab, Nasina, Balasubrahmanyam, Inumula, Satyanarayana. Effect of ventilation air velocities on diesel particulate matter dispersion in underground coal mines. , 1398; 53(2): 117-121. doi: 10.22059/ijmge.2019.264023.594755

Effect of ventilation air velocities on diesel particulate matter dispersion in underground coal mines

International Journal of Mining and Geo-Engineering
مقاله 3، دوره 53، شماره 2، اسفند 2019، صفحه 117-121    اصل مقاله (592.14 K)
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.22059/ijmge.2019.264023.594755
نویسندگان
Ramakrishna Morla* 1؛ Shivakumar Karekal2؛ Ajit Godbole2؛ Ram Madhab Bhattacharjee3؛ Balasubrahmanyam Nasina4؛ Satyanarayana Inumula4
15/160, Michael Street
2University of Wollongong, Australia
3IIT Dhanbad, India
4Directorate General of Mine Safety (DGMS), India
چکیده
This paper presents a detailed account of computational fluid dynamics (CFD) simulations undertaken to investigate the influence of intake (ventilation) air velocities on the flow patterns of diesel particulate matter (DPM) generated by a man-riding vehicle operating in a straight rectangular cross section tunnel in an underground coal mine. The simulation results are validated against an earlier experimental study.  At a sampling station 10 m downstream of the vehicle, the DPM concentration was seen to decrease rapidly with increasing intake air velocity. For air velocities of 0.5 m/s, 1 m/s, 2 m/s and 3 m/s, the DPM concentration was estimated to be 233 µg/m3, 131 µg/m3, 116 µg/m3 and 1 µg/m3 respectively. At 10 m downstream of the vehicle, if the intake air velocity is reduced from a base value of 1.26 m/s by 40% and 60% of the base value, the average DPM concentration increased to 58% and 123% respectively. If the intake air velocity is increased by 58% and 98% of the base case value, the average DPM concentration decreased to 44% and 78% respectively.
کلیدواژه‌ها
Coal mines؛ DPM؛ Air velocity؛ CFD؛ Man-riding vehicle
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