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Author

J Williams

Bio: J Williams is an academic researcher. The author has contributed to research in topics: Gasoline & Combustion. The author has an hindex of 1, co-authored 1 publications receiving 1 citations.

Papers
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01 Feb 2003
TL;DR: In this article, a van supplied by Valley Transit of Lewiston, Idaho has been converted to catalytic ignition, in order to make the vehicle operate on either gasoline or Aquanol, modifications to the fuel handling, engine management, and ignition system were necessary.
Abstract: Aqueous fueled engines have the potential for lower emissions and higher engine efficiency than engines fueled with gasoline or diesel fuels. Past attempts to burn aqueous fuels in over-the-road vehicles have been unsuccessful due to difficulties in initiating combustion under varying environmental conditions. Ethanol-water mixtures, called Aquanol, require no special emulsifications to create and should provide significant emission reductions in CO and NOx, while producing no net CO2 emissions. Aldehydes, a part of the hydrocarbon emissions, are expected to increase with alcohol-based fuels. Understanding what parameters affect aldehyde formation will help create reduction strategies. Detailed detection of exhaust emissions is necessary for a quantitative comparison. Redundant measurements with two special purpose detectors will be used for emission comparisons. A van supplied by Valley Transit of Lewiston, Idaho has been converted to catalytic ignition. In order to make the vehicle operate on either gasoline or Aquanol, modifications to the fuel handling, engine management, and ignition system were necessary. A three-part vehicle test plan is currently underway to compare performance, fuel economy, and emissions between Aquanol and gasoline fuels.

1 citations


Cited by
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01 Jan 1996
TL;DR: In this paper, multiple steady-state data were used for the construction of a kinetic model for the oxidation of aqueous ethanol with oxygen on a carbon supported platinum catalyst, and a model, incorporating reversible creation of oxygen adatoms on the catalyst surface from surface hydroxyl as well as reversible formation of subsurface oxygen from oxygen adats, could describe quantitatively all the observations.
Abstract: Multiple steady-states data were used for the construction of a kinetic model for the oxidation of aqueous ethanol with oxygen on a carbon supported platinum catalyst. A model, incorporating reversible creation of oxygen adatoms on the catalyst surface from surface hydroxyl as well as reversible formation of subsurface oxygen from oxygen adatoms, could describe quantitatively all the observations. It was essential that the reaction rate coefficients for the formation of atomic and subsurface oxygen strongly depend on the corresponding degrees of coverage introducing positive and negative feedback features.

17 citations