- #1
geo101
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I want to calculate the time it takes for a spherical sample (radius, r) to reach thermal equilibrium in an oven where the temperature is held constant.
I don’t need a super accurate answer, within 5-10 seconds is sufficient. Is it reasonable to simply say that when the Fourier Number (Fo) is 1 that the system is almost in a steady state and almost in equilibrium? Or does Fo have to be higher to make this assumption? I read somewhere that Fo = 1 equates to an energy transfer of ~97%, is this true? (There was no reference given).
Cheers
I don’t need a super accurate answer, within 5-10 seconds is sufficient. Is it reasonable to simply say that when the Fourier Number (Fo) is 1 that the system is almost in a steady state and almost in equilibrium? Or does Fo have to be higher to make this assumption? I read somewhere that Fo = 1 equates to an energy transfer of ~97%, is this true? (There was no reference given).
Cheers