Computer Simulation Studies of Adsorption of Binary and Ternary Mixtures of Gasoline Components in Engine Deposits
Journal Article
2014-01-2719
ISSN: 1946-3952, e-ISSN: 1946-3960
Sector:
Citation:
Harrison, A., Cracknell, R., Krueger-Venus, J., and Sarkisov, L., "Computer Simulation Studies of Adsorption of Binary and Ternary Mixtures of Gasoline Components in Engine Deposits," SAE Int. J. Fuels Lubr. 7(3):756-761, 2014, https://doi.org/10.4271/2014-01-2719.
Language:
English
Abstract:
Carbonaceous deposits can accumulate on various surfaces of the internal
combustion engine and affect its performance. The porous nature of these
deposits means that they act like a “sponge”, adsorbing fuel components and
changing both the composition and the amount of fuel in the combustion chamber.
Here we use a previously developed and validated model of engine deposits to
predict adsorption of normal heptane, isooctane, toluene and their mixtures in
deposits of different origin within a port fuel injected spark ignition engine
(Combustion Chamber Deposits, or CCDs, and Intake Valve Deposits, or IVDs) and
under different conditions. We explore the influence of molecular structure of
adsorbing species, composition of the bulk mixture and temperature on the uptake
and selectivity behaviour of the deposits. While deposits generally show high
capacity toward all three components, we observe that selectivity behaviour is a
more subtle and complex property.