Experimental Validation of Jet Fuel Surrogates in an Optical Engine 2017-01-0262
Three jet fuel surrogates were compared against their target fuels in a compression ignited optical engine under a range of start-of-injection temperatures and densities. The jet fuel surrogates are representative of petroleum-based Jet-A POSF-4658, natural gas-derived S-8 POSF-4734 and coal-derived Sasol IPK POSF-5642, and were prepared from a palette of n-dodecane, n-decane, decalin, toluene, iso-octane and iso-cetane. Optical chemiluminescence and liquid penetration length measurements as well as cylinder pressure-based combustion analyses were applied to examine fuel behavior during the injection and combustion process. HCHO* emissions obtained from broadband UV imaging were used as a marker for low temperature reactivity, while 309 nm narrow band filtered imaging was applied to identify the occurrence of OH*, autoignition and high temperature reactivity. Jet-A and S-8 were well represented by their surrogate fuels under the conditions examined, while the Sasol-IPK surrogate emulated the low temperature heat release but had a shorter high temperature ignition delay compared to the target fuel. The IPK surrogate was also found to have a slightly greater liquid penetration length and greater low-temperature reactivity.
Citation: Kim, T., Luo, X., Al-Sadoon, M., Lai, M. et al., "Experimental Validation of Jet Fuel Surrogates in an Optical Engine," SAE Technical Paper 2017-01-0262, 2017, https://doi.org/10.4271/2017-01-0262. Download Citation
Author(s):
Taewon Kim, Xi Luo, Mustafa Al-Sadoon, Ming-Chia Lai, Marcis Jansons, Doohyun Kim, Jason Martz, Angela Violi, Eric Gingrich
Affiliated:
Wayne State University, University of Michigan-Ann Arbor, US Army TARDEC
Pages: 13
Event:
WCX™ 17: SAE World Congress Experience
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Combustion and combustion processes
Jet fuel
Imaging and visualization
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