Journal of Optics

, Volume 30, Issue 1, pp 19–28 | Cite as

Measurement of Temperature and Temperature Fluctuation of a Gaseous Flame Using Double and Single Exposure Speckle Photography

  • Madhuri Thakur
  • Ruchi Vats
  • Vikas Rathi
  • S. K. Angra


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.


Temperature Fluctuation Speckle Pattern Gaseous Flame Fuel Flow Rate Speckle Photography 
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Copyright information

© Optical Society of India 2001

Authors and Affiliations

  • Madhuri Thakur
    • 1
  • Ruchi Vats
    • 1
  • Vikas Rathi
    • 1
  • S. K. Angra
    • 2
  1. 1.Laser Application and Holography Laboratory Instrument Design Development CentreIndian Institute of TechnologyNew DelhiIndia
  2. 2.Central Scientific Instruments OrganizationChandigarhIndia

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