eprintid: 10198394
rev_number: 10
eprint_status: archive
userid: 699
dir: disk0/10/19/83/94
datestamp: 2024-10-14 14:06:29
lastmod: 2024-10-24 17:15:01
status_changed: 2024-10-14 14:06:29
type: proceedings_section
metadata_visibility: show
sword_depositor: 699
creators_name: Alshahrani, A
creators_name: Mohni, I
creators_name: Ajisafe, A
creators_name: Furi, M
creators_name: Houde, M
creators_name: Sadasivuni, S
creators_name: Engelbrecht, G
creators_name: Bulat, G
creators_name: Talibi, M
creators_name: Balachandran, R
creators_name: Ducci, A
title: Investigation of Viscor and Methanol Spray Dynamics Using Proper Orthogonal Decomposition in Siemens Energy Industrial Atomisers (GT2024-126663)
ispublished: pub
divisions: UCL
divisions: B04
divisions: F45
keywords: Atomisation, methanol, spray dynamics, POD, alternative fuels
note: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions (https://asmedigitalcollection.asme.org/).
abstract: The demand to reduce carbon emissions has prompted research into alternative fuels that can replace conventional fuels like diesel in industrial gas turbines. Among different potential biofuels and e-fuels, methanol emerges as a sustainable and high-performance alternative to diesel for gas turbine applications. It is well established that the fuel physical properties, spray dynamics and degree of atomisation are strongly correlated and affect the engine performance. In this study, Proper Orthogonal Decomposition (POD) was applied on spatio-temporally resolved images to characterise Viscor, here used as diesel surrogate, and methanol sprays of pressure-swirl atomisers employed in Siemens Energy industrial gas turbine (SGT-400) combustors. The methanol experimental results were then compared against Viscor results at analogous operating conditions, including density adjusted atomiser pressure drop and ambient pressures. Results confirmed that the methanol spray cone angle is slightly wider than Viscor at corresponding operating conditions. The POD analysis allowed to identify dominant spatial oscillation modes and characterise them in terms of oscillation amplitude, wavelength and onset distance from the atomiser edge for both fuels. Oscillation wavelengths and maximum amplitudes were found to correlate with Weber number, average SMD and axial jet velocities.
date: 2024-08-28
date_type: published
publisher: American Society of Mechanical Engineers (ASME)
official_url: http://doi.org/10.1115/GT2024-126663
full_text_type: other
language: eng
verified: verified_manual
elements_id: 2321387
doi: 10.1115/GT2024-126663
isbn_13: 978-0-7918-8793-6
lyricists_name: Bin Mohni, Izwan
lyricists_name: Balachandran, Ramanarayanan
lyricists_name: Ducci, Andrea
lyricists_name: Talibi, Midhat
lyricists_id: IBMOH43
lyricists_id: RBALA57
lyricists_id: ADUCC64
lyricists_id: MTALI24
actors_name: Ducci, Andrea
actors_id: ADUCC64
actors_role: owner
full_text_status: restricted
pres_type: paper
publication: Proceedings of the ASME Turbo Expo
volume: 2
place_of_pub: London, UK
event_title: ASME Turbo Expo 2024: Turbomachinery Technical Conference and Exposition
event_dates: 24 Jun 2024 - 28 Jun 2024
book_title: Proceedings of the ASME Turbo Expo 2024
citation:        Alshahrani, A;    Mohni, I;    Ajisafe, A;    Furi, M;    Houde, M;    Sadasivuni, S;    Engelbrecht, G;                 ... Ducci, A; + view all <#>        Alshahrani, A;  Mohni, I;  Ajisafe, A;  Furi, M;  Houde, M;  Sadasivuni, S;  Engelbrecht, G;  Bulat, G;  Talibi, M;  Balachandran, R;  Ducci, A;   - view fewer <#>    (2024)    Investigation of Viscor and Methanol Spray Dynamics Using Proper Orthogonal Decomposition in Siemens Energy Industrial Atomisers (GT2024-126663).                     In:  Proceedings of the ASME Turbo Expo 2024.    American Society of Mechanical Engineers (ASME): London, UK.      
 
document_url: https://discovery.ucl.ac.uk/id/eprint/10198394/1/Methanol_Spray_Dynamics_of_Siemens_Energy_Industrial_Atomizers.pdf