Impact of High Sulfur Military JP-8 Fuel on Heavy Duty Diesel Engine EGR Cooler Condensate 2008-01-1081
Low-sulfur “clean” diesel fuel has been mandated in the US and Europe. However, quality of diesel fuel, particularly the sulfur content, varies significantly in other parts of the world. Due to logistical issues in various theaters of operation, the Army is often forced to rely on local fuel supplies, which exposes vehicles to diesel fuel or jet fuel (JP-8) with elevated levels of sulfur. Modern engines typically use cooled Exhaust Gas Recirculation (EGR) to meet emissions regulations. Using high-sulfur fuels and cooled EGR elevates problems associated with cooler fouling and corrosion of engine components. Hence, an experimental study has been carried out in a heavy-duty diesel engine running on standard JP-8 fuel and fuel doped with 2870 ppm of sulfur. Gas was sampled from the EGR cooler and analyzed using a condensate collection device developed according to a modified ASTM 3226-73T standard. Engine-out emissions were analyzed in parallel. Analysis of results indicates significantly increased levels of sulfur-dioxide and particulate mass with high-sulfur fuel, but negligible amounts of condensed sulfuric acid under normal operating temperatures.
Citation: Mosburger, M., Fuschetto, J., Assanis, D., Filipi, Z. et al., "Impact of High Sulfur Military JP-8 Fuel on Heavy Duty Diesel Engine EGR Cooler Condensate," SAE Int. J. Commer. Veh. 1(1):100-107, 2009, https://doi.org/10.4271/2008-01-1081. Download Citation
Michael Mosburger, Jerry Fuschetto, Dennis N. Assanis, Zoran Filipi, Heather McKee
Automotive Research Center, University of Michigan, US Army RDECOM TARDEC
SAE World Congress & Exhibition
Military Vehicles, 2008-SP-2195, SAE International Journal of Commercial Vehicles-V117-2EJ, SAE International Journal of Commercial Vehicles-V117-2