Mechanical Engineering - IC Engines and Nuclear Power Plants - Discussion
Discussion Forum : IC Engines and Nuclear Power Plants - Section 1 (Q.No. 3)
3.
In a four stroke cycle, the minimum temperature inside the engine cylinder occurs at the
Discussion:
58 comments Page 2 of 6.
Rishab Sud said:
5 years ago
Answer B is 100% correct. It's because when suction stroke begin, the temp of incoming air is high due to the high temp of intake manifold. But as the suction is completed, the P decrease inside the cylinder which lead to reduction in temperature.
(1)
Dalwai said:
9 years ago
Option B is correct because at the beginning of the suction stroke high-temperature exhaust gas had just omitted hence the chamber will be still hot.
By the end of suction stroke chamber is filled with fresh air which is atm temperature.
By the end of suction stroke chamber is filled with fresh air which is atm temperature.
Vishal Sharma said:
6 years ago
Volume increase at the end of sunction stroke. But at the same time mass increase. So the net effect will be decrease in temp. At the end of the sunction stroke. Also, it is no where mention in the T-S diagram.
Please explain it clearly.
Please explain it clearly.
JOY DEEP said:
6 years ago
RS kurmi p-222.
Look at the pictures of OTTO CYCLE, everyone.
Otto cycle in short: P-T is lowest at the beginning of compression stroke
P-T is highest at the beginning of expansion stroke.
End of discussion. You can thank me later.
Look at the pictures of OTTO CYCLE, everyone.
Otto cycle in short: P-T is lowest at the beginning of compression stroke
P-T is highest at the beginning of expansion stroke.
End of discussion. You can thank me later.
Amit said:
1 decade ago
Answer A is correct because at beginning of suction the temperature is less. As well as the piston move downward the cylinder surface be contact with air and so that cylinder heat absorbed by air and its temperature increases.
Nihit said:
1 decade ago
I think B because at the starting of suction stroke temp. Of gas is atmosphere and gas expand in the cylinder during movement of piston from TDC to BDC (at the end of suction stroke). So temperature of gas decrease.
Vsmdi krishna said:
1 decade ago
No the answer which were given is absolutely why because the engine sucked air from the atmosphere so the temperature inside cylinder not varied with atm pressure at suction only the minimum temperature available.
Satish.eppili said:
1 decade ago
I think A is the right. Exhaust gases are exhausted from cylinder so that consist some temp then input enter in to the cylinder at that state cylinder temp will be down and minimum temp is able. Thank you.
Raghavendra naik said:
6 years ago
As pv=nrt since at the beginning of suction stroke pressure will be less and volume will be less hence definitely temp will less compare to end of suction stroke because p and v value will be high.
Rudra said:
9 years ago
A is the correct answer. Because, the question is given for minimum temp. If it is maximum temp then it option B is correct. Due to piston moves to TDC the pressure increase and temp also increase.
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