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Non-premixed flame; premixed flame; co-flow laminar burner; Reynolds number; chemiluminescence.

In order to improve flame stabilization in small scale combustors, there have been many research works going on non-premixed as well as on premixed flame. The present experimental study characterizes colour and shape of the premixed and non-premixed flames through a laminar co-flow burner. Various flamebehaviors are observed and their stabilization limits are investigated at different fuel–air ratios. The spectroscopic approach becomes suitable method for the measurement of chemiluminescensce for both premixed and diffusion flames. Thus, we can predict the behavior of a combustion process. We observe also the intensity variation of chemiluminescence species, OH*, CH*, and C2* for different fuel-air flow combinations. Apart from that, we have an analysis of colour variance of the premixed flame for different flame locations

MANASA RAM KOTAL SOMNATH DE¹ SOUMYADEEP DAS SWARNENDU SEN

1. Department of Mechanical Engineering, Jadavpur University, Kolkata 700032, India

Published

7 September 2020

Manuscript received

15 April 2018

Manuscript revised

11 January 2019

Accepted

18 March 2019