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a question about conical flame.
Posted: Wed Aug 07, 2013 1:19 pm
by rezvane
Hey everyone,
A stoichiometric fuel-air mixture flowing in a Bunsen burner forms a well-defined conical flame. The mixture is then made leaner. For the same flow velocity in the tube, how does the cone angle change?
Thanks in advance
Re: a question about conical flame.
Posted: Mon Aug 12, 2013 3:49 pm
by GrahamKemp
A leaner mixture means a narower base to the cone - thus a smaller cross sectional area; a circle measured by radius.
.
Flow rate is measured as volume per time unit.
For a cone, volume is measured as
.
Hence if the same volume is flowing through a narrower base, the height of the cone will be pushed up; it will be inversely proportionate to the square of the radius.
If the height is pushed up so as the radius decreases, then the appeture will become accuter.
how does the cone angle change?
Posted: Thu Oct 03, 2013 4:26 pm
by Palphysiotherapy
Because volume flow in tube is in same ratio so height of the tube increase.
Re: a question about conical flame.
Posted: Thu Sep 30, 2021 3:02 am
by osteorehab
What is Laminar Premixed Flames and Burning Velocity
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