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Reference Number EP/Y017951/1
Title Investigation of the influence of extinction strain rates and heat release rate on the stability of swirl stabilised hydrogen premixed flames
Status Funded
Energy Categories Hydrogen and Fuel Cells (Hydrogen, Hydrogen end uses (incl. combustion; excl. fuel cells)) 100%;
Research Types Basic and strategic applied research 100%
Science and Technology Fields PHYSICAL SCIENCES AND MATHEMATICS (Applied Mathematics) 50%;
PHYSICAL SCIENCES AND MATHEMATICS (Computer Science and Informatics) 10%;
ENGINEERING AND TECHNOLOGY (Mechanical, Aeronautical and Manufacturing Engineering) 40%;
UKERC Cross Cutting Characterisation Not Cross-cutting 100%
Principal Investigator Dr U Ahmed

Sch of Engineering
Newcastle University
Award Type Standard
Funding Source EPSRC
Start Date 01 September 2024
End Date 31 August 2027
Duration 36 months
Total Grant Value £385,259
Industrial Sectors No relevance to Underpinning Sectors
Region North East
Programme NC : Engineering
Investigators Principal Investigator Dr U Ahmed , Sch of Engineering, Newcastle University (100.000%)
Web Site
Abstract With the need for the development of novel hydrogen-compatible combustion devices, physical understanding of the flame behaviour and the identification of thermoacoustic instabilities at relevant combustor operating conditions for hydrogen-air swirl flames will help speed up the development of hydrogen combustors, in line with the UK government's net-zero vision. The proposed research will offer potential benefits to industry and contribute to the progress of science in the areas of fluid dynamics, turbulence and net-zero combustion. These include (i) An advanced Direct Numerical Simulation (DNS) database for hydrogen-air premixed swirl flames under representative combustor operating conditions. (ii) A comprehensive understanding and a detailed analysis of the behaviour of the Precessing Vortex Core (PVC) under non-reacting and reacting flow conditions. (iii) Identification of the combustor operating conditions for which hydrodynamic/thermoacoustic instabilities exist. (iv) An in-depth analysis on extinction strain rates and heat release rate for lean hydrogen premixed flames. The outcomes of this project will offer knowledge on the flame stability limits and will contribute to the development of hydrogen based power generation and propulsion devices (e.g. gas turbines used for power generation and aircraft engines).

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Added to Database 03/07/24