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)
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)
Jay said:
5 years ago
The answer is wrong. All the process like constant pressure, constant volume are a reversible process.
(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)
Mzyur said:
5 years ago
Answer should be reversible process.
Vinu said:
6 years ago
They didn't mention the process undergoing whether with or without regeneration. So how it will be? Please anyone explain the answer clearly.
Sai said:
6 years ago
No, the Constant pressure process practically not possible. Only throttling process is irreversible process.
Dhananjay Bhile said:
7 years ago
Agree with you @Prashanth.
Prashanth said:
7 years ago
@All.
The otto and diesel cycles are irreversible so the constant pressure and constant volumes are irreversible processes.
The otto and diesel cycles are irreversible so the constant pressure and constant volumes are irreversible processes.
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)
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