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DC Field | Value | Language |
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dc.contributor.author | Fernie, O | - |
dc.contributor.author | Megaritis, T | - |
dc.contributor.author | Ganippa, LC | - |
dc.contributor.author | Tingas, E-A | - |
dc.date.accessioned | 2022-07-24T12:14:09Z | - |
dc.date.available | 2022-07-01 | - |
dc.date.available | 2022-07-24T12:14:09Z | - |
dc.date.issued | 2022-07-01 | - |
dc.identifier | 125100 | - |
dc.identifier.citation | Fernie, O., Megaritis, T., Ganippa , L.C. and Tingas, E.-A. (2022) 'Numerical analysis of zero-carbon HCCI engine fuelled with steam diluted H<inf>2</inf>/H<inf>2</inf>O<inf>2</inf> blends', Fuel, 326, 125100, pp. 1 - 15. doi: 10.1016/j.fuel.2022.125100. | en_US |
dc.identifier.issn | 0016-2361 | - |
dc.identifier.uri | https://bura.brunel.ac.uk/handle/2438/24967 | - |
dc.description.abstract | Copyright © 2022 The Author(s). The addition of hydrogen peroxide and steam to a hydrogen-fuelled HCCI engine was investigated at various fuel lean conditions (ϕeff = 0.2–0.6) and compression ratios (15–20) using a 0-dimensional numerical model. The use of hydrogen peroxide as an ignition promoter demonstrated increased IMEP (16%–39%), thermal efficiency (up to 2%), and reduced NOx (50%–76%) when compared to the conventional method of intake charge heating. When hydrogen peroxide was used as an ignition promoter, a 15% addition of steam was sufficient to reduce NOx by 93%–97%, though this reduced IMEP and thermal efficiency slightly. When heat transfer was considered and steam addition was increased from 0%–10%, no increase in intake air heating was able to match the IMEP of 5% hydrogen peroxide addition without an increase in the equivalence ratio (up to 40%). The parametric space of hydrogen peroxide (0%–25%) and steam (0%–40%) addition was explored in view of engine performance metrics, showing the complete range of conditions possible through control of both inputs. A three-order reduction in NOx was possible through steam addition. An optimal balance of performance and emissions occurred at 5%–10% hydrogen peroxide and 10%–15% steam addition. In a study of compression ratio, very little hydrogen peroxide addition (<5%) was required to achieve 98% of the maximum efficiency at higher compression ratios (19–20), though at lower compression ratios (<17) impractical quantities of hydrogen peroxide were required. The 10% steam addition present at these conditions led to extremely low NOx levels for ϕeff of 0.3 and 0.4, though at ϕeff of 0.5 NOx levels would require some after-treatment. Maintaining constant a high or low load across steam additions was possible through reasonable adjustment of hydrogen peroxide addition. | en_US |
dc.description.sponsorship | The work of EAT was supported by the EPSRC Network-H2 through Flexible Fund grant scheme with Grant No. RF080413 (NH2-006). OF received financial support from Edinburgh Napier University through the Starter Grant scheme (N452-000). | en_US |
dc.format.extent | 1 - 15 | - |
dc.format.medium | Print-Electronic | - |
dc.language | English | - |
dc.language.iso | en_US | en_US |
dc.publisher | Elsevier | en_US |
dc.rights | Copyright © 2022 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license (https://creativecommons.org/licenses/by/4.0/). | - |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | - |
dc.subject | hydrogen | en_US |
dc.subject | HCCI | en_US |
dc.subject | ignition promoter | en_US |
dc.subject | hydrogen peroxide | en_US |
dc.subject | heavy duty engine | en_US |
dc.subject | NOx | en_US |
dc.title | Numerical analysis of zero-carbon HCCI engine fuelled with steam diluted H<inf>2</inf>/H<inf>2</inf>O<inf>2</inf> blends | en_US |
dc.type | Article | en_US |
dc.identifier.doi | https://doi.org/10.1016/j.fuel.2022.125100 | - |
dc.relation.isPartOf | Fuel | - |
pubs.publication-status | Published | - |
pubs.volume | 326 | - |
dc.identifier.eissn | 1873-7153 | - |
dc.rights.holder | The Author(s) | - |
Appears in Collections: | Dept of Mechanical and Aerospace Engineering Research Papers |
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