Heat Transfer Flashcards
1
Q
What is advected energy?
A
The Energy transfer (transported) as a result of mass flow.
2
Q
What are the mechanisms of heat transfer? How many are there in total?
A
Conduction, convection, and radiation. Only 3.
3
Q
What law governs each mechanism of heat transfer?
A
Fourier’s Law of Conduction
Newton’s Law of Cooling
Stefan-Boltzman Law of Radiation
4
Q
Thermal Conductivity (k) is a function of what two quantities?
A
Temperature and position (direction) for a material
5
Q
What happens to the magnitude of the temperature gradient with increasing x for Case A (convection of the fin tip)
A
The temperature gradient decreases along x. This happens because Qcond decreases along the fin.
