TY - JOUR
T1 - Predicting the global combustion behaviors of petroleum-derived and alternative jet fuels by simple fuel property measurements
AU - Won, Sang Hee
AU - Veloo, Peter S.
AU - Dooley, Stephen
AU - Santner, Jeffrey
AU - Haas, Francis M.
AU - Ju, Yiguang
AU - Dryer, Frederick L.
N1 - Funding Information:
The experimental work and the analyses of data reported in this paper were supported by the following Air Force Research Laboratory (AFRL) – United States Contracts:
Publisher Copyright:
© 2015 Elsevier Ltd. All rights reserved.
PY - 2016/3/15
Y1 - 2016/3/15
N2 - Pre-vaporized global combustion behaviors of a petroleum-derived jet fuel (JP-8), five alternative jet fuels (Shell SPK, Sasol IPK, HRJ Camelina, HRJ Tallow, and Gevo ATJ), and five 50/50 (liquid volume) blends of JP-8/alternative fuels are experimentally examined and compared. Three experiments are performed to investigate the gas-phase combustion behaviors of the tested fuel samples: (1) global oxidative species profiles in a variable pressure flow reactor, (2) diffusion flame extinction in a counterflow burner, and (3) premixed flame initiation in a heated spherical combustion chamber. Multivariate linear regression methods have been applied to investigate the sensitivities of pre-vaporized global combustion behaviors to individual combustion property targets of the fuels, including Derived Cetane Number (DCN), H/C ratio, mean molecular weight, and smoke point. As a proof of concept for fuel screening tool based on the standardized fuel property measurements, a "combustion property target (CPT) index" based upon this regression analysis is found to show promise as a rapid means to evaluate the global pre-vaporized combustion behaviors of the tested fuel samples against each other as well as the spectrum of JP-8 fuels found in use. The present work suggests the applicability of such a methodology not only as an expeditious fuel screening tool for assessing the fully pre-vaporized, kinetically coupled behaviors of emerging alternative jet fuel candidates, but further supports the use of combustion property targets in developing kinetic models that are specific to each real fuel.
AB - Pre-vaporized global combustion behaviors of a petroleum-derived jet fuel (JP-8), five alternative jet fuels (Shell SPK, Sasol IPK, HRJ Camelina, HRJ Tallow, and Gevo ATJ), and five 50/50 (liquid volume) blends of JP-8/alternative fuels are experimentally examined and compared. Three experiments are performed to investigate the gas-phase combustion behaviors of the tested fuel samples: (1) global oxidative species profiles in a variable pressure flow reactor, (2) diffusion flame extinction in a counterflow burner, and (3) premixed flame initiation in a heated spherical combustion chamber. Multivariate linear regression methods have been applied to investigate the sensitivities of pre-vaporized global combustion behaviors to individual combustion property targets of the fuels, including Derived Cetane Number (DCN), H/C ratio, mean molecular weight, and smoke point. As a proof of concept for fuel screening tool based on the standardized fuel property measurements, a "combustion property target (CPT) index" based upon this regression analysis is found to show promise as a rapid means to evaluate the global pre-vaporized combustion behaviors of the tested fuel samples against each other as well as the spectrum of JP-8 fuels found in use. The present work suggests the applicability of such a methodology not only as an expeditious fuel screening tool for assessing the fully pre-vaporized, kinetically coupled behaviors of emerging alternative jet fuel candidates, but further supports the use of combustion property targets in developing kinetic models that are specific to each real fuel.
KW - Alternative jet fuels
KW - CPT index
KW - Combustion property target
KW - Derived Cetane Number (DCN)
KW - Smoke point (SP)
KW - Threshold Sooting Index (TSI)
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U2 - 10.1016/j.fuel.2015.11.026
DO - 10.1016/j.fuel.2015.11.026
M3 - Article
AN - SCOPUS:84960854392
VL - 168
SP - 34
EP - 46
JO - Fuel
JF - Fuel
SN - 0016-2361
ER -