Mechanical Engineering - Thermodynamics - Discussion
Discussion Forum : Thermodynamics - Section 2 (Q.No. 16)
16.
Which is the incorrect statement about Carnot cycle?
Discussion:
19 comments Page 1 of 2.
Vinay said:
1 year ago
1. Carnot cycle is an ideal cycle so it is used as an alternate standard of comparison of all heat engines.
2. Carnot cycle has the highest efficiency theoretically. It means that Carnot engine gives maximum output work between two temperature limits.
3. As Carnot cycle is only an ideal cycle not a practical cycle so it is used only for comparison. All heat engines are not based on Carnot cycle.
2. Carnot cycle has the highest efficiency theoretically. It means that Carnot engine gives maximum output work between two temperature limits.
3. As Carnot cycle is only an ideal cycle not a practical cycle so it is used only for comparison. All heat engines are not based on Carnot cycle.
(1)
Biren said:
8 years ago
Yes, B is the correct answer because all heat engine does not base on that if it's possible then all engines we said as an idle means egg and we know that that's not possible.
In carnot there is two processes isothermal which is extremely slow process and isentropis which is extremelly fast process and in practical we not able to making engine based on that so answer B.
In carnot there is two processes isothermal which is extremely slow process and isentropis which is extremelly fast process and in practical we not able to making engine based on that so answer B.
Muhammad said:
9 years ago
The correct one for me is D.
Carnot is the highest Theoretical Efficiency in all cycles, which mean for the same temp limits, Carnot gives the highest work output (Which makes C as a correct one).
To compare all engine cycles you should have a standard one to compare with and you can't find a better one than Carnot to compare with (which makes A as a correct one).
Carnot is the highest Theoretical Efficiency in all cycles, which mean for the same temp limits, Carnot gives the highest work output (Which makes C as a correct one).
To compare all engine cycles you should have a standard one to compare with and you can't find a better one than Carnot to compare with (which makes A as a correct one).
Sudhanshu Pathak said:
7 years ago
Option (A) tells Carnot cycle is used as the alternate standard of comparison of all heat engines means Carnot cycles is used only for comparison, but in option (b) tells all the heat engines are based on Carnot cycle is incorrect. Because Carnot cycle is an ideal cycle, not a practical cycle it is used only for comparison.
Suparna said:
4 years ago
A should be incorrect because of the word alternate, actually, the Carnot cycle is the universal standard for all other heat engines,
Hence B is correct and also the concept of maximizing work output or efficiency is the main thing about the Carnot cycle that makes option C is correct too.
Hence B is correct and also the concept of maximizing work output or efficiency is the main thing about the Carnot cycle that makes option C is correct too.
Poonam said:
5 years ago
The answer should be a as per the theoratical concepts of thermodynamics, Carnot cycle is chosen to be as the standard to compare all another cycle or engine and the reason for choosing it is, that it provides maximum work output. So statement b and c are correct about the Carnot cycle.
Dipesh said:
9 years ago
It is used as the alternate standard of comparison of all heat engines.
All the heat engines are based on Carnot cycle.
Both statements are related to each other I don't know how b is answered.
All the heat engines are based on Carnot cycle.
Both statements are related to each other I don't know how b is answered.
Jagadesh said:
8 years ago
I think "all of above" is the wrong option. Because a, b, c options are true. They saying option B is wrong. But Carnot engine standard one all heat engines created based on this concept.
Shekar said:
10 years ago
We know that Carnot cycle is reversible and having high efficiency among all cycles i.e. unity so, to maximize the efficiency of all cycles we need to follow the ideal cycle properties.
Shruti singh said:
8 years ago
How answer B is possible? Because Carnot cycle based on heat engine. Please explain it.
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