Help with Thesis: Measuring Flue Air Flow

[diar1000]

I all, new to this forum and just looking for a bit of help in my final year thesis.
I have built a model chimney and using a gas torch to represent a fire. I would like to know is there any way i would be able to get the flow rate of the air going through the model flue (alimumin duct). It is one meter in length . Thanks

 

[Bobbywhy]

diar1000, Welcome to Physics Forums!

When I was young my family lived in a home with a fireplace in the living room. Before lighting the fire, my father crumpled up a few newspaper sheets and jammed them up in the chimney flue. We first lighted that paper to start the updraft, then the main fire materials. As a result, our living room never filled with smoke.

Bobbywhy

 

[D.Hayward]

This isn't really an answer to your question I am just interested. What is your thesis on?

 

[diar1000]

Its on a chimney heat recovery unit. i have produced a modle one with a coil exchanger wrapped about the flue of a chimney and using gravity flow I've manged to raise temperture in a 10 litre tank by 15 by only using a bunson burner.