The effects of water-emulsified fuel on diesel particulate matter concentrations in underground mines.
Noll-JD; Mischler-SE; Patts-LD; Schnakenberg-GH; Bugarski-AD; Timko-RJ; Love-G
Proceedings of the 11th U.S./North American Mine Ventilation Symposium, University Park, Pennsylvania, June 5-7, 2006. Mutmansky JM, Ramani RV. eds., London, U.K.: Taylor & Francis Group, 2006 Jun; :159-164
In this study, we evaluated the ambient diesel particulate matter (DPM) concentrations (at the intakes and exhausts of the mine) as the entire vehicle fleet of a stone mine switched from using 35% biodiesel to a water-emulsified fuel (PuriNOx). Elemental carbon (EC) was reduced by 45% when a PuriNOx blend containing 10% water replaced 35% biodiesel and by 57% when a PuriNOx blend containing 20% water was used. Other factors such as engine duty cycle and production changes could potentially cause some day-to-day EC fluctuations, and no direct comparison to commonly used diesel fuels (No. 1 or No. 2) was achieved. Therefore, a second study was performed in a controlled "isolated zone" environment of a metal mine comparing PuriNOx to No. 1 diesel fuel in a load-haul-dump vehicle. The EC fraction of the DPM was reduced by about 71% when the PuriNOx blend containing 10% water was used and by about 85% when the PuriNOx blend containing 20% water was used. This study did not determine how the water-emulsified fuel would affect the engine or power.
Mining-industry; Underground-mining; Diesel-emissions; Stone-mines; Nonmetal-mining; Metal-mining; Carcinogens; Occupational-health; Health-hazards; Eye-irritants; Sampling; Sampling-methods
NIOSH Pittsburgh Research Laboratory, P.O. Box 18070, Pittsburgh, PA 15236
Research Tools and Approaches: Exposure Assessment Methods
Proceedings of the 11th U.S./North American Mine Ventilation Symposium, University Park, Pennsylvania, June 5-7, 2006