Heat Transfer Flashcards
1
Q
Which forms of radiation can travel through a vacuum?
A
All forms of radiation can travel through a vacuum.
2
Q
What is the sum of absorptivity and reflectivity for an opaque body?
A
1
3
Q
What is the relationship between radiation and absolute temperature?
A
The radiation emitted by a body is proportional to the fourth power of its absolute temperature.
4
Q
When can one use the lumped capacitance model to evaluate transient heat transfer?
A
When the Biot number is less than 0.1
