Recent content by Wings2806

Progress... and stuck again So the experiment was modified somewhat. The 6 inch by 6 inch material panel forms a small part (approximately 1 in 224) of a 5 sided box (the left hand box). The excel file shows the dimensions of the panels, along with 4 temperature readings. It was my hope...

Thank you Chestermiller. Do you agree with mfb that Q/t will be the output of my heating element? When I have used the equation before, Q/t in Watts has been the heat flow through the material itself, where k has been known.

Ah thank you, I see where my confusion was I think. I should be using: k = (Q/t) * (d / A deltaT). I didn't realize I had Q/t. Thank you very much mfb. I'll see how I get on from here.

I follow you, but I don't have any value for thermal conductivity (k). Any way around this? And I take it if I had a thermostat to regulate the temperature inside the box, and took outside the box to be room temperature and constant, that would work? But then where does time fit in? Does it...

Apologies for the break from format, but I'm not sure how to make this fit! I'm designing an experiment to compare the insulation properties of several materials. I would like to find the Thermal Conductivity (K) or the U (or R) values of these materials. However essentially all I am after...