Injector design space exploration for an ultra-low NOx hydrogen micromix combustion system

Simple item page
dc.contributor.authorAgarwal, Parash
dc.contributor.authorSun, Xiaoxiao
dc.contributor.authorGauthier, Pierre Q.
dc.contributor.authorSethi, Vishal
dc.date.accessioned2020-05-06T12:17:51Z
dc.date.available2020-05-06T12:17:51Z
dc.date.issued2019-11-05
dc.description.abstractThe depletion of fossil fuel resources, as well as the increasing environmental concerns have become the driving forces towards the research and development necessary for the introduction of alternative fuel such as hydrogen into civil aviation. Hydrogen is a suitable energy source primarily because it is free of carbon and other forms of impurities and is also the most abundant element in the universe. The advantages of using Liquid Hydrogen (LH2) for civil aviation extends beyond carbon-free mission level emissions; LH2 combustion can potentially reduce NOx emission by up to 90%, providing long-term sustainability and unrivalled environmental benefits. The paper presents a simplified parametric analysis to investigate the influence of various injector design parameters on a hydrogen micromix combustor reactive flow field. The main characteristics investigated are the flame structure (shape and position), the aerodynamic stabilization of the flame and the resulting NOx emissions. The design parameters include variations in the air-feed dimensions and the hydrogen injection diameter. A suitable numerical model was established by comparing various turbulence modelling approaches, reaction mechanisms and turbulence-chemistry interaction modelling schemes. The predictive capabilities, and limitations, of each of these modelling approaches, are assessed. The numerical challenges and limitations associated with modelling H2/air combustion at high pressure and temperature conditions are detailed. The influence of varying the injector design parameters on the mixing and hence the NOx characteristics is assessed.en_UK
dc.identifier.citationAgarwal P, Sun X, Gauthier PQ, Sethi V. (2019) Injector design space exploration for an ultra-low NOx hydrogen micromix combustion system. In: ASME Turbo Expo 2019: Turbomachinery Technical Conference and Exposition, 17-21 June 2019, Phoenix, Arizona, Paper number GT2019-90833en_UK
dc.identifier.isbn978-0-7918-5860-8
dc.identifier.urihttps://doi.org/10.1115/GT2019-90833
dc.identifier.urihttps://https://asmedigitalcollection.asme.org/GT/proceedings/GT2019/58608/V003T03A013/1066673
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/15436
dc.language.isoenen_UK
dc.publisherASMEen_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectFossil fuelsen_UK
dc.subjectHigh pressure (Physics)en_UK
dc.subjectEnergy resourcesen_UK
dc.subjectComputer simulationen_UK
dc.subjectCombustion chambersen_UK
dc.subjectChemically reactive flowen_UK
dc.subjectTurbulenceen_UK
dc.subjectFlamesen_UK
dc.subjectCommercial air transporten_UK
dc.subjectCarbonen_UK
dc.subjectEmissionsen_UK
dc.subjectNitrogen oxidesen_UK
dc.subjectHydrogenen_UK
dc.subjectEjectorsen_UK
dc.subjectCombustion systemsen_UK
dc.titleInjector design space exploration for an ultra-low NOx hydrogen micromix combustion systemen_UK
dc.typeConference paperen_UK

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Injector_design_space_explorations_for_an_ultra-low_NOx_Hydrogen-2020.pdf
Size:
1.56 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.63 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Staff publications (SATM)