Tagged Questions
0
votes
2answers
66 views
Is it possible to “add cold” or to “add heat” to systems?
Amanda just poured herself a cup of hot coffee to get her day started.
She took her first sip and nearly burned her tongue. Since she didn't
have much time to sit and wait for it to cool down, ...
0
votes
1answer
240 views
Calculating (Glass) thermal conductivity
I read that glass has a thermal coefficient of 0.8-1 W/mK. Given that my window window thickness is around $5\ mm$, then I would calculate my heat loss per area being $160-200\ Wm^{-2}K^{-1}$.
Yet ...
0
votes
0answers
33 views
Thermal Physic ($\lambda$) and ($C_p$) calculation for multilayer wall [closed]
I would like to know, how could I calculate the Thermal conductivity ($\lambda$) and heat specific ($C_p$) of Multilayer wall? (I have a wall with 9 layers which are included wood and air)
3
votes
4answers
365 views
why does a larger thermal conductivity provide a smaller temperature gradient?
I was thinking about Fourier's Law in heat transfer today and for some reason I am just not understanding the relationships it gives us. Fourier's tells us that if the heat transfer rate is kept ...
2
votes
1answer
629 views
Confused with stress, strain and linear thermal expansion
Four rods A, B, C, D of same length and material but of different
radii r, 2r , 3r and 4r respectively are held between two rigid
walls. The temperature of all rods is increased by same ...
