Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 유지형 | - |
dc.date.accessioned | 2022-12-05T05:25:58Z | - |
dc.date.available | 2022-12-05T05:25:58Z | - |
dc.date.issued | 2021-10 | - |
dc.identifier.citation | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, v. 46, NO. 74, Page. 37098-37107 | en_US |
dc.identifier.issn | 0360-3199;1879-3487 | en_US |
dc.identifier.uri | https://www.sciencedirect.com/science/article/pii/S036031992103439X?via%3Dihub | en_US |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/177944 | - |
dc.description.abstract | Partial substitution of hydrocarbon fuel with hydrogen can effectively improve small-scale combustion system stability and performance, potentially opening the way for novel compact power generation and/or propulsion systems in the future. In this study, the effects of hydrogen enhancement between 0% and 40% hydrogen volumetric fractions in methane fuel were experimentally observed in a mesoscale burner array subjected to external acoustic perturbations. The mesoscale burner array utilizes an array of swirl-stabilized burner elements and their interactions with neighboring elements to improve the overall flame stability and simultaneously reduces the combustor length scale. OH∗ chemiluminescence and OH planar laser-induced fluorescence (OH-PLIF) were used to image various hydrogen-enriched flames at an equivalence ratio of 0.7, subjected to transverse acoustic perturbations at 320 Hz. Two acoustic modes were imposed by controlling the phase difference between two speakers perturbing the flow. OH∗ chemiluminescence images exhibited flame length scale reduction, leading to a denser flame array. Also, flame arrays with higher hydrogen enrichment were found to be more robust against transverse acoustic perturbations, demonstrated by reduced fluctuations in the global heat release rate. OH-PLIF images showed that flames with higher hydrogen enrichment initiated V- to M-shaped flame shape transition even under fuel lean conditions, thereby improving the combustion stability. OH-PLIF images were also used for flame stability analysis through spectral proper orthogonal decomposition (SPOD). The SPOD analysis showed hydrogen enrichment diminished flame fluctuation structures under fuel lean operation. © 2021 Hydrogen Energy Publications LLC | en_US |
dc.description.sponsorship | The authors of this work would like to acknowledge the support of Office of Naval Research through ONR Grant #N00014-17-1-2538 with Dr. Steven Martens as program manager. This work was supported by the National Research Foundation of Korea grant funded by the Korea government (MSIT) No. NRF-2020R1A2C1102990. This research was supported by the MOTIE in Korea, under the Fostering Global Talents for Innovative Growth Program (P0008748, Global Human Resource Development for Innova-tive Design in Robot and Engineering) supervised by the Korea Institute for Advancement of Technology. | en_US |
dc.language | en | en_US |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | en_US |
dc.subject | Mesoscale burner array | en_US |
dc.subject | Hydrogen enrichment | en_US |
dc.subject | OH planar laser-induced fluorescence | en_US |
dc.subject | Spectral proper orthogonal decomposition | en_US |
dc.title | Effects of hydrogen enhancement on mesoscale burner array flame stability under acoustic perturbations | en_US |
dc.type | Article | en_US |
dc.relation.no | 74 | - |
dc.relation.volume | 46 | - |
dc.identifier.doi | 10.1016/j.ijhydene.2021.08.192 | en_US |
dc.relation.page | 37098-37107 | - |
dc.relation.journal | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | - |
dc.contributor.googleauthor | Choi, Jeongan | - |
dc.contributor.googleauthor | Lee, Wooyoung | - |
dc.contributor.googleauthor | Rajasegar, Rajavasanth | - |
dc.contributor.googleauthor | Lee, Tonghun | - |
dc.contributor.googleauthor | Yoo, Jihyung | - |
dc.sector.campus | S | - |
dc.sector.daehak | 공과대학 | - |
dc.sector.department | 미래자동차공학과 | - |
dc.identifier.pid | jihyungyoo | - |
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