Problem on Second Law of Thermodynamics

AI Thread Summary
A reversible engine operates between three thermal reservoirs, A, B, and C, absorbing equal heat from A and B at temperatures Ta and Tb, and rejecting heat to C at temperature Tc. The engine's efficiency is α times that of a reversible engine operating between A and C. The discussion centers on proving the relationship Ta/Tb = (2α - 1) + 2(1 - α)Ta/Tc. This equation highlights the interplay between the efficiencies and temperatures of the reservoirs involved. The problem emphasizes the complexities of thermodynamic efficiency in multi-reservoir systems.
adipta_datta
Messages
4
Reaction score
0
A reversible engine works between three thermal reservoirs-A,B and C.The engine absorbs an equal amount of heat from the thermal reservoirs A & B kept at temperatures Ta and Tb respectively,and rejects heat to the thermal reservoir C kept at temperature Tc.The efficiency of the engine is \alpha times the efficiency of the reversible engine,which works between the two reservoirs A & C.Prove that:Ta/Tb=(2\alpha-1)+2(1-\alpha)Ta/Tc
 
Engineering news on Phys.org
You might want to post in homework section to get better results
 
ok.thanks for the advice and your help.
 

Thread 'A practical way to vaporize fuel for high MPG?'

Here's a video by “driving 4 answers” who seems to me to be well versed on the details of Internal Combustion engines. The video does cover something that's a bit shrouded in 'conspiracy theory', and he touches on that, but of course for phys.org, I'm only interested in the actual science involved. He analyzes the claim of achieving 100 mpg with a 427 cubic inch V8 1970 Ford Galaxy in 1977. Only the fuel supply system was modified. I was surprised that he feels the claim could have been...
View full post »

Thread 'Technical Analysis on Titan Sub (Titanic Sub)'

TL;DR Summary: Heard in the news about using sonar to locate the sub Hello : After the sinking of the ship near the Greek shores , carrying of alot of people , there was another accident that include 5 tourists and a submarine visiting the titanic , which went missing Some technical notes captured my attention, that there us few sonar devices are hearing sounds repeated every 30 seconds , but they are not able to locate the source Is it possible that the sound waves are reflecting from...
View full post »

Similar threads

Problem on Second Law of Thermodynamics
Replies
2
Views
4K
Chemistry How to reverse the process of rubbing two stones in water?
Replies
5
Views
2K
Work greater than heat given to colder reservoir -- impossible?
Replies
18
Views
1K
B HFC-134a Refrigerant & 2nd Law of Thermodynamics
Replies
20
Views
2K
B Question regarding Heat Transfer in Carnot Engine
Replies
1
Views
2K
I An experiment against the second law of thermodynamics
Replies
37
Views
5K
B How are thermodynamic laws related to one another?
Replies
4
Views
2K
Chemistry Work done by heat engine that uses exhaust from heat pump
Replies
9
Views
3K
Do Carnot and Stirling Engines Have the Same Efficiency?
Replies
8
Views
14K
I Entropy change due to heat transfer between sources
Replies
15
Views
3K

Hot Threads

Recent Insights

Back
Top