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dc.contributor.authorAlRamadan, Abdullah S.
dc.contributor.authorBadra, Jihad
dc.contributor.authorJaved, Tamour
dc.contributor.authorAlAbbad, Mohammed A.
dc.contributor.authorBokhumseen, Nehal
dc.contributor.authorGaillard, Patrick
dc.contributor.authorBabiker, Hassan
dc.contributor.authorFarooq, Aamir
dc.contributor.authorSarathy, Mani
dc.date.accessioned2016-01-19T14:43:45Z
dc.date.available2016-01-19T14:43:45Z
dc.date.issued2015-10
dc.identifier.citationAlRamadan AS, Badra J, Javed T, Al-Abbad M, Bokhumseen N, et al. (2015) Mixed butanols addition to gasoline surrogates: Shock tube ignition delay time measurements and chemical kinetic modeling. Combustion and Flame 162: 3971–3979. Available: http://dx.doi.org/10.1016/j.combustflame.2015.07.035.
dc.identifier.issn0010-2180
dc.identifier.doi10.1016/j.combustflame.2015.07.035
dc.identifier.urihttp://hdl.handle.net/10754/594224
dc.description.abstractThe demand for fuels with high anti-knock quality has historically been rising, and will continue to increase with the development of downsized and turbocharged spark-ignition engines. Butanol isomers, such as 2-butanol and tert-butanol, have high octane ratings (RON of 105 and 107, respectively), and thus mixed butanols (68.8% by volume of 2-butanol and 31.2% by volume of tert-butanol) can be added to the conventional petroleum-derived gasoline fuels to improve octane performance. In the present work, the effect of mixed butanols addition to gasoline surrogates has been investigated in a high-pressure shock tube facility. The ignition delay times of mixed butanols stoichiometric mixtures were measured at 20 and 40bar over a temperature range of 800-1200K. Next, 10vol% and 20vol% of mixed butanols (MB) were blended with two different toluene/n-heptane/iso-octane (TPRF) fuel blends having octane ratings of RON 90/MON 81.7 and RON 84.6/MON 79.3. These MB/TPRF mixtures were investigated in the shock tube conditions similar to those mentioned above. A chemical kinetic model was developed to simulate the low- and high-temperature oxidation of mixed butanols and MB/TPRF blends. The proposed model is in good agreement with the experimental data with some deviations at low temperatures. The effect of mixed butanols addition to TPRFs is marginal when examining the ignition delay times at high temperatures. However, when extended to lower temperatures (T < 850K), the model shows that the mixed butanols addition to TPRFs causes the ignition delay times to increase and hence behaves like an octane booster at engine-like conditions. © 2015 The Combustion Institute.
dc.publisherElsevier BV
dc.subjectButanols
dc.subjectChemical kinetics
dc.subjectIgnition delay times
dc.subjectOctane boosters
dc.subjectShock tube
dc.subjectToluene primary reference fuels
dc.titleMixed butanols addition to gasoline surrogates: Shock tube ignition delay time measurements and chemical kinetic modeling
dc.typeArticle
dc.contributor.departmentChemical Engineering Program
dc.contributor.departmentChemical Kinetics & Laser Sensors Laboratory
dc.contributor.departmentClean Combustion Research Center
dc.contributor.departmentCombustion and Pyrolysis Chemistry (CPC) Group
dc.contributor.departmentMechanical Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalCombustion and Flame
dc.contributor.institutionSaudi Aramco Research and Development Center, Fuel Technology R and D Division, Dhahran 31311, Saudi Arabia
kaust.personJaved, Tamour
kaust.personAlabbad, Mohammed
kaust.personFarooq, Aamir
kaust.personSarathy, Mani


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