Js. Ervin et S. Zabarnick, COMPUTATIONAL FLUID-DYNAMICS SIMULATIONS OF JET FUEL OXIDATION INCORPORATING PSEUDO-DETAILED CHEMICAL-KINETICS, Energy & fuels, 12(2), 1998, pp. 344-352
Military jet aircraft circulate fuel as a cooling medium. Upon heating
, dissolved oxygen reacts with the fuel forming insoluble deposits whi
ch can block fuel lines and disrupt operation of close tolerance valve
s. Thus, an understanding of how dissolved oxygen reacts with the fuel
is important to aircraft designers. A pseudo-detailed kinetics model
which considers antioxidant chemistry was incorporated in a computatio
nal fluid dynamics code, and dissolved oxygen and hydroperoxide concen
tration profiles along a stainless steel tube were calculated for both
nearly isothermal and nonisothermal flowing systems. Flowing experime
nts were performed with both a severely hydrotreated fuel and a straig
ht-run fuel, and the predicted dissolved oxygen and hydroperoxide prof
iles agreed reasonably well with the measured profiles over a range of
bulk fuel temperatures and flow conditions. The present model offers
an improved understanding of jet fuel oxidation and antioxidant chemis
try.