Diesel combustion studies with alternative fuels

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Diesel engines - a workhorse technology is fuel efficient and highly reliable - provide essential motive power to Canada's people and industries. However, diesel engines emit significant quantities of gaseous oxides of nitrogen (NOx) and particulate matter (PM) in their exhaust. Increased concerns about the health effects of diesel exhaust emissions have resulted in stringent new heavy-duty diesel engine exhaust emission standards. A combination of engine combustion system improvements, fuel changes, and the use of add-on exhaust aftertreatment devices including particulate filters, oxidation catalysts and NOx absorbers will be required to meet the upcoming standards. While there are urgent research needs for all of these technologies, reducing engine out emissions through engine combustion system research will be in the long run the key to achieving very low emission levels.