Pulsed laser imaging in practical combustion systems from 2D to 4D

James B. Kelman; Glen Sherwood; Frank O'Young; Martin Berckmueller; Mark C. Jermy; Assaad R. Masri; Douglas A. Greenhalgh

doi:10.1117/12.397963

31 August 2000 Pulsed laser imaging in practical combustion systems from 2D to 4D

James B. Kelman, Glen Sherwood, Frank O'Young, Martin Berckmueller, Mark C. Jermy, Assaad R. Masri, Douglas A. Greenhalgh

Author Affiliations +

Proceedings Volume 4076, Optical Diagnostics for Industrial Applications; (2000) https://doi.org/10.1117/12.397963
Event: Symposium on Applied Photonics, 2000, Glasgow, United Kingdom

Abstract

Laser imaging technologies are now being used in practical combustors, from fuel vapour concentration measurements to liquid drop sizing. Simple 2D imagine has demonstrated its capabilities but has limitations in proving all the required data. Multi-dimension and multi-scalar imaging are demonstrating their power in providing additional information. This paper presents the progression of imaging from 2D to 4D and the advantages gained from the labour intensive multi-imaging processes. Temperature and fuel distribution are of critical interest in most practical combustors. Techniques ranging from simple Planar Laser Induced Fluorescence (PLIF) to more complex multi-scalar techniques such as Laser Sheet Drop-sizing (LSD) and mixture fraction imaging are presented with their potential diagnostic power. Although 2D imaging can provide a great deal of data for axi-symmetric flows, most combustors require characterisation with multiple 2D layers to assemble a fu ll 3D picture of the processes involved. Data is presented for a turbine combustor, showing the development of fuel mixing in the premix duct. The advantages of the complex 4D imaging are shown by the success of fuel imaging in an internal combustion engine where crank-angle resolved images enable the fuel distribution in the combustion cycle and cycle to cycle fluctuations to be quantified.

Citation Download Citation

James B. Kelman, Glen Sherwood, Frank O'Young, Martin Berckmueller, Mark C. Jermy, Assaad R. Masri, and Douglas A. Greenhalgh "Pulsed laser imaging in practical combustion systems from 2D to 4D", Proc. SPIE 4076, Optical Diagnostics for Industrial Applications, (31 August 2000); https://doi.org/10.1117/12.397963

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