Temperature measurement by holographic interferometry for non-premixed ethylene-air flame with a series of state relationships

This investigation developed a systematic method to measure the temperatures and the mass concentrations of local species in a non-premixed ethylene–air flame using the holographic interferometry (HI) technique. A nearly linear state relationship between the Gladstone–Dale constant and the mixture f...

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Bibliographic Details
Published in:Fuel (Guildford) 2007-07, Vol.86 (10), p.1552-1559
Main Authors: Zhang, Da-Yong, Zhou, Huai-Chun
Format: Article
Language:English
Subjects:
Applied sciences
Combustion of gaseous fuels
Combustion. Flame
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Holographic interferometry
Non-premixed flame
Temperature measurement
Theoretical studies. Data and constants. Metering
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Summary:This investigation developed a systematic method to measure the temperatures and the mass concentrations of local species in a non-premixed ethylene–air flame using the holographic interferometry (HI) technique. A nearly linear state relationship between the Gladstone–Dale constant and the mixture fraction was deduced. Normalized state relationships between the refractive index and the mixture fraction were established from detailed combustion simulations for the NPFs. The maximum error of temperature caused by the assumption of composition of air was reduced from 48.84% to under 1.6% for the NPFs using the systematic method. The method can overcome the difficulty that the concentrations of local species must be known when measuring the temperature by HI for NPFs.
ISSN:0016-2361
1873-7153
DOI:10.1016/j.fuel.2006.11.012