For example, we out a heat sink on a microprocessor to keep it cooler.
I understand that if we run 100 watts of electricity through the microprocessor, it will generate 100 watts of heat, or 100 Joules per second.
If the temperature of the CPU stabilizes at 50 degrees Celsius, how do we calculate the heat flow of the heat sink when the ambient air temperature (contacting the heat sink) is 30 degrees Celsius?
I initially thought that the heat flow would simply be 100 Joules per second when the CPU reached 50 degrees, thus causing no more energy to remain to heat the CPU anymore, but then I get confused. Does the heat sink have different heat flow for different amounts of energy at the base?
I believe I just answered my own question. The heat sink has a heat flow that is proportionally related to the temperature difference of the CPU temp and the ambient air temp.
One more thing. Can somebody point me to a good resource on heat flow and thermodynamics relating to this type of subject? Thank you.