The use of a volatile liquid fuel to reduce cold-start emissions from a spark ignition engine
thesisposted on 17.04.2018 by Peter Cardani
In order to distinguish essays and pre-prints from academic theses, we have a separate category. These are often much longer text based documents than a paper.
As traffic density increases, there is growing urgency to reduce its polluting effect. Catalysts fitted to new vehicles, with spark ignition engines, are highly efficient at controlling harmful emissions once they have reached operating temperature. However, during a cold-start the catalyst is initially inactive, just when engine-out emissions are at their highest, mainly due to the fuel-rich mixtures used for reliable starting and good driveability, particularly at low ambient temperatures. As the population of vehicles fitted with catalysts grows, the significance of this cold-start and warm-up period of operation will increase. [Continues.]
- Aeronautical, Automotive, Chemical and Materials Engineering
- Aeronautical and Automotive Engineering