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- W4310365464 endingPage "126858" @default.
- W4310365464 startingPage "126858" @default.
- W4310365464 abstract "As a renewable bio-alcohol, n-butanol is a promising candidate fuel for the alternative fuels of internal combustion engines. In current work, ignition delay times of stoichiometric n-butanol/toluene reference fuel/air mixtures have been measured in a shock tube at different n-butanol blending ratios (0 %, 20 %, 50 %, and 75 % by volume). Experiments were carried out at wide ignition temperatures from 729 to 1518 K and pressures from 1.0 to 20.0 atm. The effects of n-butanol on toluene reference fuel/air auto-ignition were explored, and a promoting effect of n-butanol on toluene reference fuel auto-ignition was observed at high temperatures of T > 800 K. However, n-butanol exhibits an inhibiting effect to toluene reference fuel auto-ignition at low temperatures of T < 800 K at 20.0 atm. The addition of n-butanol is able to smooth out the negative temperature coefficient behavior of toluene reference fuel auto-ignition. A reduced n-butanol/toluene reference fuel mechanism with 67 species and 211 reaction steps has been developed. Good agreements between calculations and experiments validate the reliability of mechanism. The sensitivity analysis shows that NC4H9OH + HO2 = C4H8OH-1 + H2O2 and H2O2(+M) = 2OH(+M) are dominant chain propagating reactions, which accelerate auto-ignition of n-butanol/ toluene reference fuel/air at high temperatures. The inhibiting reaction C4H8OH-1O2 = CO + C2H6 + CH2O + OH plays a crucial factor at low temperatures." @default.
- W4310365464 created "2022-12-09" @default.
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- W4310365464 date "2023-04-01" @default.
- W4310365464 modified "2023-10-16" @default.
- W4310365464 title "Experimental and kinetic study of the effects of n-butanol addition on toluene reference fuel auto-ignition" @default.
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- W4310365464 doi "https://doi.org/10.1016/j.fuel.2022.126858" @default.
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