Course Details
Subject {L-T-P / C} : MN3271 : Mine Ventilation Laboratory { 0-0-3 / 2}
Subject Nature : Practical
Coordinator : Prof. Himanshu Bhushan Sahu
Syllabus
1. Determination of Relative Humidity of Mine air with fixed/stationary Hygrometer, and Whirling Hygrometer
2. Determination of Relative Humidity of air using Assman Psychrometer
3. Determination of cooling power of air using Kata Thermometer
4. Determination of CO % by MSA CO detector
5. Determination of percentage of CO and CO2 by Drager Multi Gas Detector (Model 21/31)
6. Determination of Methane % by MSA D-6 Methanometer
7. Study of the construction and working of Flame Safety Lamp (VELOX GL-50, GL-60 and MSA type)
8. Gas Testing by Flame Safety Lamp in a Gas Testing Chamber
9. Measurement of Air Velocity by (i) Vane Anemometer (ii) Electric Analog Velometer
10. Study of Pitot Static Tube & measuring of Air Velocity in a ventilation duct in combination with an Inclined Manometer
11. Measurement of dust concentration by (i) Gravimetric Dust Sampler, (II). Personal Dust Sampler
12. Measurement of Pm2.5 and PM10 concentration
13. Measurement of Noise Level by Integrating Sound Level Meter (CEL-283)
Course Objectives
- The students learn the determination of various ventilation parameters in underground mines viz. gases, psychometric properties
- The students learn to carry out ventilation surveys
Course Outcomes
Ability to determine hazardous gases and psychometric properties of air. <br />Ability to carry out ventilation surveys and interpret the results. <br />Ability to plan underground ventilation.
Essential Reading
- M. J. McPherson, Subsurface Ventilation and Environmental Engineering,, Chapman & Hall, 1993
- G. B. Mishra,, Mine Environment and Ventilation,, Oxford University Press, Fifth Impression, 1993
Supplementary Reading
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