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dc.contributor.authorKim, Jong Hak
dc.contributor.authorYu, Gwang Hyeon
dc.contributor.authorLuong, Minh Bau
dc.contributor.authorChung, Suk Ho
dc.contributor.authorYoo, Chun Sang
dc.date.accessioned2020-10-14T13:43:02Z
dc.date.available2020-10-14T13:43:02Z
dc.date.issued2019-01-01
dc.identifier.urihttp://hdl.handle.net/10754/665583
dc.description.abstractThe impacts of dual additives including formaldehyde (CH2O) and hydrogen peroxide (H2O2) for the control of ignition of primary reference fuel (PRF)/air mixture in homogeneous charge compression ignition (HCCI) engine conditions have been investigated numerically. It is found that CH2O addition causes ignition retardation, which may result in a misfire. The chemical effect of CH2O is to eliminate OH radicals and hence increases the main ignition delay. On the other hand, the addition of H2O2 decomposes H2O2 into two OH radicals, which promotes the main ignition. It is also found that the overall combustion mode is determined by two different additives with different ignition delay characteristics. For CH2O and dual additive cases, a mixed combustion mode of both spontaneous ignition and deflagration occurs. However, the spontaneous ignition occurs dominantly in H2O2 and no additive cases with short combustion duration. These results suggest that addition of CH2O provides smooth operation of HCCI engines and besides, dual additive injection can precisely control the ignition timing for HCCI combustion.
dc.description.sponsorshipThis research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT (NRF-2018R1A2A2A05018901). This research used the resources of the KAUST Supercomputing Laboratory and UNIST Supercomputing Center.
dc.publisherCombustion Institute
dc.relation.urlhttps://www.researchgate.net/profile/Minh_Bau_Luong/publication/334193096_A_DNS_study_of_CH2O_and_H2O2_effect_on_the_ignition_of_lean_PRFair_mixtures_under_HCCI_conditions/links/5d1c4eb6a6fdcc2462bae68f/A-DNS-study-of-CH2O-and-H2O2-effect-on-the-ignition-of-lean-PRF-air-mixtures-under-HCCI-conditions.pdf
dc.rightsArchived with thanks to Combustion Institute
dc.titleA DNS study of CH2O and H2O2 effect on the ignition of lean PRF/air mixtures under HCCI conditions
dc.typeConference Paper
dc.contributor.departmentClean Combustion Research Center
dc.contributor.departmentCombustion and Laser Diagnostics Laboratory
dc.contributor.departmentMechanical Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.conference.date2019-07-01 to 2019-07-05
dc.conference.name12th Asia-Pacific Conference on Combustion, ASPACC 2019
dc.conference.locationFukuoka, JPN
dc.eprint.versionPost-print
dc.contributor.institutionDepartment of Mechanical Engineering, Ulsan National Institute of Science and Technology, Ulsan, 44919, South Korea
kaust.personLuong, Minh Bau
kaust.personChung, Suk Ho
dc.identifier.eid2-s2.0-85083950356
refterms.dateFOA2020-10-15T05:38:54Z
kaust.acknowledged.supportUnitKAUST Supercomputing Laboratory


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