Kerosene-H2 blending effects on flame properties in a multi-fuel combustor
In this study, the macroscopic properties of kerosene-H2 blended flames are investigated in a multi-phase, multi-fuel combustor, focusing on the effects of increasing H2 blending fractions. The non-reacting flow field of the swirl-stabilized combustor is characterized using PIV, and macro-structures...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-06-01
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| Series: | Fuel Communications |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S266605202500007X |
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| author | Kaushal Dave Sarah Link Francesca De Domenico Ferry Schrijer Fulvio Scarano Arvind Gangoli Rao |
| author_facet | Kaushal Dave Sarah Link Francesca De Domenico Ferry Schrijer Fulvio Scarano Arvind Gangoli Rao |
| author_sort | Kaushal Dave |
| collection | DOAJ |
| description | In this study, the macroscopic properties of kerosene-H2 blended flames are investigated in a multi-phase, multi-fuel combustor, focusing on the effects of increasing H2 blending fractions. The non-reacting flow field of the swirl-stabilized combustor is characterized using PIV, and macro-structures in the flow and spray-swirl interactions are analyzed. Kerosene atomizers are tested to estimate variations in spray quality across different fuel blends. The changes in the optical properties of the flames are recorded using broadband chemiluminescence imaging while the changes in the acoustic emissions are recorded using a microphone. Results show that H2 addition significantly alters the flame topology, transitioning from a lobed flame for pure kerosene to a single contiguous swirling flame for blended or pure H2 cases. The flame luminosity decreases, with the emission color shifting from bright yellow (pure kerosene case) to dull yellow (multi-fuel cases) to a red-blue hue (pure H2 case). These changes are attributed to variations in fuel distribution, heat release patterns, combustion mode, flame speed, and soot formation tendencies. The acoustic analysis reveals that a strong tonal behavior is observed under pure fuel conditions (prominent peaks at higher harmonics of 150 Hz) while broadband characteristics are exhibited under blended fuel conditions. The overall acoustic emissions in multi-fuel cases are reduced by ∼80 % compared to pure H2 and ∼55 % compared to pure kerosene. This study highlights the effects of high levels of H2 blending on flame dynamics and acoustic behavior in a multi-phase, multi-fuel combustor, offering valuable insights for the development of fuel-agnostic combustion systems. |
| format | Article |
| id | doaj-art-926073b00e934f2591980f5a5261e2e8 |
| institution | Kabale University |
| issn | 2666-0520 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Fuel Communications |
| spelling | doaj-art-926073b00e934f2591980f5a5261e2e82025-08-20T03:45:59ZengElsevierFuel Communications2666-05202025-06-012310013910.1016/j.jfueco.2025.100139Kerosene-H2 blending effects on flame properties in a multi-fuel combustorKaushal Dave0Sarah Link1Francesca De Domenico2Ferry Schrijer3Fulvio Scarano4Arvind Gangoli Rao5Corresponding author.; Faculty of Aerospace Engineering, TU Delft, Kluyverweg 1, 2629 HS Delft, The NetherlandsFaculty of Aerospace Engineering, TU Delft, Kluyverweg 1, 2629 HS Delft, The NetherlandsFaculty of Aerospace Engineering, TU Delft, Kluyverweg 1, 2629 HS Delft, The NetherlandsFaculty of Aerospace Engineering, TU Delft, Kluyverweg 1, 2629 HS Delft, The NetherlandsFaculty of Aerospace Engineering, TU Delft, Kluyverweg 1, 2629 HS Delft, The NetherlandsFaculty of Aerospace Engineering, TU Delft, Kluyverweg 1, 2629 HS Delft, The NetherlandsIn this study, the macroscopic properties of kerosene-H2 blended flames are investigated in a multi-phase, multi-fuel combustor, focusing on the effects of increasing H2 blending fractions. The non-reacting flow field of the swirl-stabilized combustor is characterized using PIV, and macro-structures in the flow and spray-swirl interactions are analyzed. Kerosene atomizers are tested to estimate variations in spray quality across different fuel blends. The changes in the optical properties of the flames are recorded using broadband chemiluminescence imaging while the changes in the acoustic emissions are recorded using a microphone. Results show that H2 addition significantly alters the flame topology, transitioning from a lobed flame for pure kerosene to a single contiguous swirling flame for blended or pure H2 cases. The flame luminosity decreases, with the emission color shifting from bright yellow (pure kerosene case) to dull yellow (multi-fuel cases) to a red-blue hue (pure H2 case). These changes are attributed to variations in fuel distribution, heat release patterns, combustion mode, flame speed, and soot formation tendencies. The acoustic analysis reveals that a strong tonal behavior is observed under pure fuel conditions (prominent peaks at higher harmonics of 150 Hz) while broadband characteristics are exhibited under blended fuel conditions. The overall acoustic emissions in multi-fuel cases are reduced by ∼80 % compared to pure H2 and ∼55 % compared to pure kerosene. This study highlights the effects of high levels of H2 blending on flame dynamics and acoustic behavior in a multi-phase, multi-fuel combustor, offering valuable insights for the development of fuel-agnostic combustion systems.http://www.sciencedirect.com/science/article/pii/S266605202500007XEnergy transitionHydrogenKeroseneMulti-fuel combustionPremixed swirl combustorSpray combustor |
| spellingShingle | Kaushal Dave Sarah Link Francesca De Domenico Ferry Schrijer Fulvio Scarano Arvind Gangoli Rao Kerosene-H2 blending effects on flame properties in a multi-fuel combustor Fuel Communications Energy transition Hydrogen Kerosene Multi-fuel combustion Premixed swirl combustor Spray combustor |
| title | Kerosene-H2 blending effects on flame properties in a multi-fuel combustor |
| title_full | Kerosene-H2 blending effects on flame properties in a multi-fuel combustor |
| title_fullStr | Kerosene-H2 blending effects on flame properties in a multi-fuel combustor |
| title_full_unstemmed | Kerosene-H2 blending effects on flame properties in a multi-fuel combustor |
| title_short | Kerosene-H2 blending effects on flame properties in a multi-fuel combustor |
| title_sort | kerosene h2 blending effects on flame properties in a multi fuel combustor |
| topic | Energy transition Hydrogen Kerosene Multi-fuel combustion Premixed swirl combustor Spray combustor |
| url | http://www.sciencedirect.com/science/article/pii/S266605202500007X |
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