JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Pre-Requisites

Mine Environmental Engineering

Course Objective

To determine the psychrometric properties, gas percentage in atmosphere. To study

the principles and characteristics governing mine fans. To understand lamp design and perform underground illumination surveys. To understand the temporary and permanent stoppings, preventive measures for mine explosions and rescue apparatus.

Course Outcomes

At the end of the course, students will be able to

• 1. Determine the psychrometric properties, gas percentage in atmosphere.
• 2. Determine the relative humidity by hygrometer.
• 3. Knowledge of principles and characteristics governing mine fans.
• 4. Analyses ventilation network circuit.
• 5. Knowledge of mine air-conditions plant.

LIST OF EXPERIMENTS

• 1. Detection of mine gases
• 2. Orsat/Haldane apparatus for gas analysis.
• 3. Measurement of relative humidity by hygrometer.
• 4. Kata thermometer.
• 5. Constructional features of centrifugal and axial flow fans.
• 6. Characteristic curves for fans.
• 7. Operation of fans in series and parallel.
• 8. Design of various ventilation devices, Airshaft, Evasese, Doors crossing regulators.
• 9. Reversal of Ventilation system.
• 10. Measurement of air quantity by anemometer velometer and smoke tube, pressure survey.
• 11. Measurement of relative humidity by hygrometer.
• 12. Study and analysis ventilation network circuit.
• 13. Study of mine air-conditioning plant.
• 14. Study of Constructional features of a flame safety lamp and cap lamp, accumulation and percentage