Uncertainty in Gravimetric Analysis Required for LEV III Light-Duty Vehicle PM Emission Measurements

Marketable Credits for Light-Duty Vehicle Emission Control in Califorr6a

is one of ten regional units mandated by Congress and estabIished in Fall 1988 to support research, education, and training in surface transportation. The UC Center serves federal Region IX and is supported by matching grants from the l_J. Los Angeles campuses. Faculty and students on other University of California campuses may participate in Center activities. Researchers at other universities...

Quantifying in-use PM measurements for heavy duty diesel vehicles.

Heavy duty emissions regulations have recently expanded from the laboratory to include in-use requirements. This paradigm shift to in-use testing has forced the development of portable emissions measurement systems (PEMS) for particulate matter (PM). These PM measurements are not trivial for laboratory work, and are even more complex for in-use testing. This study evaluates five PM PEMS in comp...

Heavy Duty Diesel Vehicle Exhaust PM Speciation Profiles

Design and analysis of a thermoelectric generator for a heavy-duty vehicle in ‎real road test

Heavy duty vehicles have a great share on fossil fuel consumption and greenhouse gases in the world, while they waste two third of chemical energy of fuel. On the other hand, simplicity and long life of thermoelectric generators (TEGs) are considered more and more to convert thermal energy to electrical one. In this paper a TEG designed in the exhaust system of Renault Midlum 195 Dxi Engine. Th...

Driving patterns as a contributing factor to light-duty vehicular emission in the Kumasi metropolis

Exhaust emissions contribute greatly to air pollution, the social cost of which may occur as danger to human health, attracting huge medical expenses, causing absenteeism and hence loss of productivity. These are incentives to reduce exhaust emissions to the barest minimum. Two major cities in Ghana, Accra and Kumasi, are struck by vehicular traffic jams especially during rush-hours and are gra...