ROLE OF THERMOACCOUSTIC COUPLING WITH EXTERNAL HEAT SOURCE ON POTENTIAL PROPULSIVE FIRES
- Paper number
IAC-18,D6,3,1,x42448
- Author
Mr. Vinayak Malhotra, India, SRM University Chennai
- Coauthor
Mr. Pratik Sarkar, India, SRM University, kattankulathur,chennai
- Coauthor
Ms. Aanchal Gupta, India, SRM University, Chennai
- Coauthor
Mr. Jayraj Chaudhary, India, SRM University, Chennai
- Year
2018
- Abstract
Space propulsion mandates the necessary understanding of fires. The subject is entitled to research emphasis owing to resources, mission safety and adjoined huge financial losses. IIn combustion, a diffusion flame is a flame in which the oxidizer combines with the fuel by diffusion.In several Aerospace and Automobile industries combustion by diffusion flames are used. Almost all of the combustion processes are accompanied by sound which significantly affects its progression . In a combustion chamber of a jet engine combustion of fuel takes place in several cans which are at a particular distance and orientation to the other,so to understand the effects it is necessary to understand the effect of Thermoacoustic coupling on diffusion flame .Acoustic effect coupled with external heat source is an aspect yet to be explored .The present work represents practical case where combustion phenomenon is accompanied with external heating and acoustics .The work attempts to gain physical insight into acoustic and thermal energy interaction .To study the effects, an experimental setup consisting of a wax candle with external heat source coupled with sound source was upraised. The effect of systematic variation of external heat source distance and orientation ,with respect to the fuel without the presence of acoustic and then with acoustics at different frequencies and orientations, were studied.From this experiment an alteration in the regression rate of the candle was noted.The results of the experiment can be utilised to increase fire safety and a better combustion process.Potential fires represent combustion primarily studied as a diffusion flame in which the oxidizer combines with the fuel by diffusion with applications in Aerospace and Automobile industries combustion. Almost all of the combustion processes are accompanied by sound which significantly affects its progression. In space Propulsion, combustion is in vicinity of external sources and always assisted by acoustics.Acoustic effect coupled with external heat source is an aspect yet to be explored .The present work represents practical case where combustion phenomenon is accompanied with external heating and acoustics.The work attempts to gain physical insight into acoustic and thermal energy interaction.To study the effects, an experimental setup consisting of a wax candle with external heat source coupled with sound source was upraised. The effect of systematic variation of external heat source distance and orientation with respect to the fuel with acoustics at different frequencies and orientations, were studied.The results can be utilised to increase fire safety and a better combustion process.
- Abstract document
- Manuscript document
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