Cooling rate of isolated heat source
Cooling rate of isolated heat source
(OP)
This is probably an easy question but i need to estimate the time required for a localized hot spot on the surface of mica to dissipate the excess energy and return to room temperature. There is no forced cooling, i.e. cooling only by ambient air and phonons.
Let
T1 =100C (Hot Spot max temp)
T2 = 23C (Final temp)
Hot spot area ~0.5 micron^2
Thanks in advance
jh
Let
T1 =100C (Hot Spot max temp)
T2 = 23C (Final temp)
Hot spot area ~0.5 micron^2
Thanks in advance
jh





RE: Cooling rate of isolated heat source
RE: Cooling rate of isolated heat source
The Fourier number and the Biot number need to be calculated to determine the approximate time. The product superposition principle (I think) can be used for your problem if you assume the initial temperature of the surrounding mica is 23C.