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Effects of Biodiesel Fuel and Intake Air Methane on the Emissions of a Flameproof Diesel Power Package

Effects of Biodiesel Fuel and Intake Air Methane on the Emissions of a Flameproof Diesel Power Package. 12 th U.S./North American Mine Ventilation Symposium June 9-11, 2008 M. Gangal, B. Rubeli & D. Young (Natural Resources Canada)

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Effects of Biodiesel Fuel and Intake Air Methane on the Emissions of a Flameproof Diesel Power Package

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  1. Effects of Biodiesel Fuel and Intake Air Methane on the Emissions of a Flameproof Diesel Power Package 12th U.S./North American Mine Ventilation Symposium June 9-11, 2008 M. Gangal, B. Rubeli & D. Young (Natural Resources Canada) N. Paas (Dry System Technologies) and T. Robson (Quinsam Mine) #07-121

  2. Project Details • Determine the effect of B50 fuel on emissions • Determine if B50 will reduce the minimum ventilation requirements • Minimum ventilation requirements are governed by the CSA standards • Testing on engine dynamometer

  3. Laboratory Testing • Diesel engine with flameproof power package with control technologies • CAN/CSA M424.2-90, non-gassy u/g mines • CAN/CSA-M424.1-88, gassy u/g coal mines • 1.25% methane by volume in intake air • Flameproof requirements • Surface temperature below 150ºC

  4. Diesel Engine Specifications

  5. Exhaust Emissions from the Diesel Engine ExhaustManifold Filter Catalyst Heat Exchanger Schematic Diagram of Exhaust System

  6. Fuel Used for the Study

  7. Test Equipment in the Laboratory Filter Housing Engine Heat exchanger

  8. ISO 8178-C1, 8 Mode Test Cycle With Weighing Factors

  9. Test Measurements • Engine parameters • Speed, torque, power, fuel rate, exhaust temperature • Exhaust gases • CO, CO2, NO, NOx, O2, THC • Particulates (DPM) • Calculations • Emission rate in g/h • Measurements were taken after the exhaust treatment

  10. Test Conditions

  11. Effects of B50 on Baseline Test

  12. Effect of Methane on Baseline Test

  13. Effect of Methane on Power (T3)

  14. Effect of Methane + B50 on Baseline

  15. Effect of B50 on Diesel Fuel (Methane in Intake Air)

  16. Minimum Ventilation Requirements(Gassy Coal Mines) • Diesel fuel 4.01 m3/s (8,500 cfm) • B50 fuel 4.11 m3/s (8,700 cfm)

  17. Comments • The overall effect on DPM reduction is primarily dependent on filtration efficiency and catalyst properties. The increase in DPM could be due to change in filter efficiency. • With B50 fuel reduction in CO and increase in NOx is consistent with other work. • Application of low exhaust temperature filtration would be beneficial where filter regeneration is difficult to obtain. • The minimum ventilation rate for diesel fuel and B50 is almost same.

  18. Comments • 1.25% of methane mixture in engine intake air • increased power, CO2, and CO at all modes, by an average value of 15%, 12%, and 124% respectively. • reduced NO2 by 13%. • reduced fuel consumption and DPM by an average value of 4% each.

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