Effect of Air Co-flow on Flickering Motion of LPG Laminar Diffusion Jet Flame

Satyanarayana Raju, P. and Nayak, Guguloth Mahesh and Balusamy, S. (2021) Effect of Air Co-flow on Flickering Motion of LPG Laminar Diffusion Jet Flame. Lecture Notes in Mechanical Engineering. pp. 717-725. ISSN 2195-4356

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Abstract

The present paper reports on an experimental study to determine the effects of air co-flow on the flickering behaviour of liquefied petroleum gas (LPG) laminar diffusion flames. This study is accomplished by using the fast Fourier transform (FFT) analysis on photomultiplier tube (PMT) time signals, image-processing technique and proper orthogonal decomposition (POD) analysis. In this experimental study, the flickering of a flame is described by its flame structure (mean flame height), oscillation amplitude, and percentage dominant mode energy. It is observed that the velocity of co-flow air strongly affects the flame dynamics and structure of the co-flow laminar diffusion flame. The PMT signals confirmed that increasing the velocity of co-flow air leads to an increase in the oscillation frequency and a decrease in oscillation amplitude. The effect of co-flow velocity disappears at critical values and the flame height becomes constant.

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IITH Creators:	IITH Creators ORCiD Balusamy, Saravanan UNSPECIFIED
Item Type:	Article
Uncontrolled Keywords:	Co-flow air; Flame flickering; Laminar diffusion flame; Proper orthogonal decomposition
Subjects:	Physics > Mechanical and aerospace Physics > Mechanical and aerospace > Transportation Science & Technology
Divisions:	Department of Mechanical & Aerospace Engineering
Depositing User:	. LibTrainee 2021
Date Deposited:	30 Aug 2021 07:35
Last Modified:	09 Mar 2022 10:13
URI:	http://raiithold.iith.ac.in/id/eprint/8803
Publisher URL:	http://doi.org/10.1007/978-981-16-0698-4_79
Related URLs:	Author

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