Combustion characteristics of C4 iso-alkane oligomers: Experimental characterization of iso-dodecane as a jet fuel surrogate component

Fuel molecular structure effect on autoignition of highly branched iso-alkanes at low-to-intermediate temperatures: Iso-octane versus iso-dodecane

“…As such, the reaction with a positive (negative) value of sensitivity coefficient retards (promotes) the overall reactivity. [25] and iC12 [36], as well as the ST data for iC8 [14] and iC12 [34,36]. Overall, the current RCM measurements agree/complement well with the literature RCM/ST data.…”

“…By contrast, limited autoignition data for iC12 have been reported [34][35][36]. Won et al [34] measured the reflected shock ignition delay times of iC12 from stoichiometric to fuel-rich at 20 and 40 atm, and compared the iC12 data to those of iC8, iso-cetane (2,2,4,4,6,8,8-heptamethylnonane, iC16), and a 50/50 molar blend of iC8/iC16, reporting that all the ignition delay times at high-to-intermediate temperatures are similar. Flora et al [35] further studied the ignition characteristics of a few hydrocarbons proposed as jet fuel surrogate components, including n-heptane, n-dodecane, m-xylene, ndodecane/m-xylene blend (77/23 by volume), and iC12.…”

“…In this investigation, RCM experiments of iC8/air and iC12/air mixtures at varying pressures (15, 20, and 30 bar), equivalence ratios (ϕ=0.7, 1.0, 1.2, and 2.0), and temperatures (600-900 K) are conducted. For some overlapped conditions, the current RCM data are compared with the RCM data of iC8 [25] and iC12 [36] and the ST data of iC8 [14] and iC12 [34,36], in order to demonstrate the consistency of the current RCM results and the literature RCM/ST data. A detailed chemical kinetic model, including low-to-intermediate temperature chemistry for both iC8 and iC12, is also developed.…”

A hybrid droplet vaporization-chemical surrogate approach for emulating vaporization, physical properties, and chemical combustion behavior of multicomponent fuels

“…Therefore, accuracy of the TSI for the chemical surrogate is evaluated using comparison to typical ranges of TSI in kerosene fuels. The TSI of the surrogate is calculated using linear blending rules for pure components [37], [38], [39], [40] .…”

Methods and tools for the characterisation of a generic jet fuel

“…Depending on the specific experimental set-up and the specific molecule, it is possible to measure ignition delay time data in the low temperature area, down to temperatures as low as 600 K and 700 K, for isooctane e.g. [18,19,[27][28][29][30] and cyclohexane e.g. [23,31].…”