Page 177 - Advanced Mine Ventilation

11
Diesel Exhaust Control

Chapter Outline

11.1 Health Hazards of Diesel Particulate Matter 158
11.2 Diesel Particulate Matter Standards 159
11.3 Diesel Exhaust Control Strategy 161
11.3.1 Clean Engines 161
11.3.2 Clean Fuel 161
11.3.3 Catalytic Converter 164
11.3.4 Diesel Particulate Filters 165
11.3.4.1 Low-Temperature Filters 165
11.3.4.2 High-Temperature Filtration System 166
11.4 Diesel Exhaust Dilution 167
11.4.1 A Single Diesel Engine in a Single Roadway 167
11.4.2 Time-Dependent Model 170
11.4.3 Multiple Diesel Engines in a Single Roadway 172
11.4.4 Diesel Engines Moving Continuously in a Cycle in a Roadway With Considerable
Leakage 175
11.4.5 Diesel Engines Moving Continuously in a Cycle in a Roadway With Little Leakage 177
11.4.6 Diesel Engines Moving Randomly in a Roadway With Uniform Air Velocity 178
11.4.7 Coefficients of Turbulent Dispersion 179
11.4.7.1 Coefficient of Longitudinal Turbulent Dispersion 179
11.4.7.2 Coefficients of Transverse Turbulent Dispersion 181
11.4.8 Main Conclusion of Mathematical Modeling 181
11.5 Diesel Equipment Maintenance and Training of Personnel 182
11.5.1 Maintenance Plan 182
11.5.2 Training of Diesel Equipment Operators and Mechanics 183
11.6 West Virginia Diesel RegulationsdA Model for Coal Industry 183
11.6.1 Highlights of Diesel Regulations 184
11.6.2 Diesel-Powered Equipment Package Approval Process 184
References 186

During the past 50 years, the US coal industry and particularly underground coal min-
ing have gone through some major changes. Some of these changes are obvious by
now, but others are in the making. They are as follows:
1. Restructuring of the mines (fewer but larger coal mines).
2. A productivity of 70e80 tons/manshift versus 20e30 tons/manshift.
3. Longwall mining versus room and pillar mining for improved safety and productivity.
4. Three-entry longwall developments versus four- to six-entry development sections.
5. Diesel personnel and material transport versus trolley wire equipment.

Advanced Mine Ventilation. https://doi.org/10.1016/B978-0-08-100457-9.00011-0
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