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Expt 7: Flame Spread over a Solid Fuel Surface
Aim
Intro
Theory
About Exp
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About Experiment
It is important to understand the flame spread over the solid fuels used in our day-to-day life.
Paper can be considered as a solid fuel.
The combustible properties of paper will differ significantly depending upon whether it is soaked with a liquid fuel or not.
Besides this, the paper thickness will also have influence on the flame spread rate.
In this experiment, we will try to understand the phenomena occurring during the downward propagation of flame in a solid fuel (paper).
Exprimental Setup
Exprimental Procedure
The paper is clamped between the two vertical metal strips.
The paper holder can be rotated to a desired angle.
Once the fuel is set at a desired angle, the ignition coil is brought into contact at the top edge of the fuel surface.
Ensure that the ignition takes place uniformly at the contact edge.
Experiment is conducted in an enclosed chamber with an escape passage for the exhaust gases.
A high resolution video camera is used to acquire the images.
NOTE: Flame front is identified by the blue zone behind the luminous yellow zone.
Results: images of combustion process
© Virtual Combustion and Atomization Lab, IIT Kanpur