Mechanical Engineering - Thermodynamics - Discussion
Discussion Forum : Thermodynamics - Section 1 (Q.No. 41)
41.
The constant pressure, constant volume and constant pvn processes are regarded as irreversible process.
Discussion:
54 comments Page 1 of 6.
Prashanth said:
3 years ago
1. All are the process such as constant volume, constant pressure, isothermal Or constant temperature (pv=C), adiabatic & polytropic are all reversible processes.
2. Throttling is an irreversible process.
2. Throttling is an irreversible process.
(9)
Waseem said:
8 years ago
Practically they are irreversible but are considered Internally reversible like in reciprocaing engine. And that's why equation is defined for them and also these processes are shown by solid lines in diagrams.
(1)
RAHUL GUPTA said:
8 years ago
All the above-mentioned processes is regarded irreversible process.
Because all process is reversible when processes are completed with the help of regenerator.
Because all process is reversible when processes are completed with the help of regenerator.
(1)
Rakim said:
7 years ago
No, the process is reversible by default but can be made reversible using elements like regenerator.
(1)
Prashanth said:
7 years ago
I think the irreversible one is only the polytropic process because there is no usage of polytropic processes at ideal cycles like carnot, otto, diesel, but we used pressure and volume process at these cycles so here my question is the otto and diesel cycles are reversible or not if they are irrversible then the cont pressure and cont volume also irrevesible.
(1)
MBB said:
5 years ago
Answer is correct only adiabatic process is reversible, at constant pressure, constant volume there is loss of heat and if their is heat transfer how can it be reversible. Reversible process means at end of the process it come back to its original state so when it will come? when their is no loss of heat.
(1)
Jay said:
5 years ago
The answer is wrong. All the process like constant pressure, constant volume are a reversible process.
(1)
Ashu lone said:
5 years ago
Irreversible process is the correct answer.
If these processes are non-flow processes then we can call them reversible process.
If these processes are non-flow processes then we can call them reversible process.
(1)
Pavan said:
8 years ago
Yeah, as per Khurmi, false is the answer.
S Bera said:
8 years ago
Const pressure Const volume. Polytropic process are non-flow reversible process. So false is the correct answer.
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