2026-09-19T19:20:42Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/88293 2023-07-11 col_2142_5131 col_2142_14787 com_2142_5130 com_2142_9630 com_2142_234

Lee, Tonghun Min, Kyungwook 2015-09-29T21:08:12Z 2015-09-29T21:08:12Z 2017-09-30T09:15:24Z 2015-08 2015-07-23 Alternative fuels have been widely and actively investigated recently to alleviate an impending energy crisis. Rising environmental, economical, and political concerns requires employments of alternative sources of energy other than conventional fossil fuels. Alternative aviation fuels from diverse bio-feedstock have been introduced to reduce dependency on fossil fuels and environmental effects. However, combustion characteristics and properties of the newly developed fuels are not yet comprehensively understood. Recent studies have been examined to obtain combustion characteristics of alternative aviation fuels, as well as physical and chemical properties. The primary goal of this study is to determine the ignition delay time of jet fuels of interest; conventional, alternative, and surrogate blends. By measuring the pressure trace of autoignition in rapid compression machine, ignition delay time is captured through the pressure derivative. Category A fuels represent conventional jet fuels. Three of the category A fuels of interest are Jet A(Jet A-2), the nominal commercial aviation fuel, JP-8(Jet A-1) and JP-5(Jet A-3), both of which are conventional military jet fuels. Fuels in category C are the surrogate fuels with specific targeted physical properties, or chemical composition. They are either produced from bio feedstock, or blend of them with conventional fuels or surrogate components. Amyris Farnesame, Gevo ATJ(C-1), blend of tetradecane and trimethylbenzene (C-2), blend of JP-5 and farnesane (C-3), blend of Sasol IPK and Gevo ATJ (C-4), blend of decane and trimethylbenzene (C-5) are tested through the study. A rapid compression machine at the University of Illinois at Urbana-Champaign is used for testing, with the direct test chamber charge preparation method. DTC configuration has advantages in avoiding thermal decomposition and controllability. Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2017-08-01 The student, Kyungwook Min, accepted the attached license on 2015-07-16 at 15:04. The student, Kyungwook Min, submitted this Thesis for approval on 2015-07-16 at 15:16. This Thesis was approved for publication on 2015-07-23 at 14:32. DSpace SAF Submission Ingestion Package generated from Vireo submission #8506 on 2015-09-29 at 15:06:27 Made available in DSpace on 2015-09-29T21:08:12Z (GMT). No. of bitstreams: 2 MIN-THESIS-2015.pdf: 1828855 bytes, checksum: 3c7ce36937ddd55d995ff7d6c063417b (MD5) LICENSE.txt: 4210 bytes, checksum: 2c63850035a825cf4a20768568c17e31 (MD5) Previous issue date: 2015-07-23 Embargo set by: Seth Robbins for item 89574 Lift date: 2017-09-29T21:08:35Z Reason: Author requested closed access (OA after 2yrs) in Vireo ETD system Limited Restriction Lifted for Item 89574 on 2017-09-30T09:15:24Z. application/pdf http://hdl.handle.net/2142/88293 en Copyright 2015 Kyungwook Min Alternative fuels Ignition delay Rapid compression machine Ignition delay study of next generation alternative jet fuels in a rapid compression machine text text 2015-8 Mechanical Science & Engineering Mechanical Engineering University of Illinois at Urbana-Champaign Thesis M.S.