Measurement of Temperature and Temperature Fluctuation of a Gaseous Flame Using Double and Single Exposure Speckle Photography
Measurement of accurate spatial distribution of temperature and temperature fluctuation in a flame is important to study the combustion process in detail. In this paper first we have presented measurement of temperature profile of a gaseous flame of a two-dimensional slot burner. The errors due to halo effect in the measurements of temperature are minimized by correcting the width of the fringes. Further single exposure speckle photography is used to study temperature fluctuation inside the flame. The 3-D plot of temperature fluctuation for different fuel flow rates of air and acetylene at different vertical heights above the mouth of the burner with distance from the one end of the burner is also presented.
KeywordsTemperature Fluctuation Speckle Pattern Gaseous Flame Fuel Flow Rate Speckle Photography
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