Second Law analysis for Radiative Heat Transfer

AI Thread Summary
The discussion focuses on the challenges of conducting a Second Law analysis for radiative heat transfer, particularly in the context of entropy generation from heat sinks. The importance of understanding energy exchange without mass transfer is emphasized, suggesting that entropy can be analyzed similarly to other canonical ensembles. For foundational concepts, resources on introductory statistical mechanics are recommended, especially chapters discussing canonical ensembles. However, a deeper understanding of the specific mechanisms of radiative heat transfer, such as the T^4 relation, necessitates a quantum mechanical perspective, which complicates the analysis. Overall, further research into both statistical mechanics and quantum mechanics is advised for a comprehensive understanding.
kulkajinkya
Messages
12
Reaction score
1
Hi people, I'm currently working on a project regarding entropy generation by (emissive only) radiative heat transfer from heat sinks. But I'm unable to find a proper treatment regarding Second Law analysis for Radiative Heat Transfer. Can someone give me the link to any book or any article regarding this?
 
Science news on Phys.org
Abstractly, this is just a situation involving a system and its surroundings, which exchange energy but not mass. It doesn't matter what the energy transfer mechanism is, whether radiative or conductive, so the entropy can be analyzed just like any other canonical ensemble. This should be covered in any book on introductory statistical mechanics (look up the chapter on canonical ensembles).

If you are asking about the specific mechanisms behind radiative heat transfer from a statistical mechanical viewpoint (such as the T^4 relation), this is more complicated and requires a quantum mechanical treatment. I don't understand it myself, so I can't point you to any good sources.
 

Thread 'Entropy and configurations of microstates'

I was watching a Khan Academy video on entropy called: Reconciling thermodynamic and state definitions of entropy. So in the video it says: Let's say I have a container. And in that container, I have gas particles and they're bouncing around like gas particles tend to do, creating some pressure on the container of a certain volume. And let's say I have n particles. Now, each of these particles could be in x different states. Now, if each of them can be in x different states, how many total...
View full post »
Thread 'Why work is PdV and not (P+dP)dV in an isothermal process?'

Thread 'Why work is PdV and not (P+dP)dV in an isothermal process?'

Let's say we have a cylinder of volume V1 with a frictionless movable piston and some gas trapped inside with pressure P1 and temperature T1. On top of the piston lay some small pebbles that add weight and essentially create the pressure P1. Also the system is inside a reservoir of water that keeps its temperature constant at T1. The system is in equilibrium at V1, P1, T1. Now let's say i put another very small pebble on top of the piston (0,00001kg) and after some seconds the system...
View full post »

Similar threads

I Entropy change due to heat transfer between sources
Replies
15
Views
3K
Does Copper Conduct Heat Better than cPVC?
Replies
2
Views
1K
Heat Transfer Q&A: Sun, Metal Heat Sinks, & Conductivity
Replies
2
Views
2K
A Average temperature in a greenhouse
Replies
2
Views
2K
Difference between IR and heat
Replies
43
Views
8K
Machine in Clausius' 2nd law of thermodynamics?
Replies
7
Views
16K
Heat transfer by infrared radiation (the very basics)
Replies
31
Views
5K
Radiation - mode of heat transfer
Replies
6
Views
2K
Heat Transfer -- Newton's law of cooling
Replies
8
Views
2K
Stability of radiative heat transfer
Replies
9
Views
2K

Hot Threads

Recent Insights

Back
Top