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 4 of 6.
Pandian said:
1 decade ago
Yes at the end of suction stroke cylinder temp less.
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.
Aditya s nimje said:
1 decade ago
I think B is the correct answer because, end of the suction stroke fresh air will be come in to the cylinder and which decrease the temp.of cylinder.
Manish yadav said:
1 decade ago
I think A is correct because at the beginning of suction stroke volume is less than at end of suction stroke but pressure is same so as per PV=nRT temp. is min. at beginning of suction stroke.
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.
Ram said:
1 decade ago
In this question its not completely clarified.
In the starting of engine the option A is right.
Otherwise option B is right.
In the starting of engine the option A is right.
Otherwise option B is right.
Nitish said:
1 decade ago
We'll the correct answer may seem B, but a closer look gives A.
This is because due to Ram Effect the end of suction stroke is at higher than atmospheric pressure, while beginning of suction stroke is at atmospheric pressure (Pressure drops with further movement of piston). Further volume at end of suction stroke is higher, so a simple application of PV=nRT can reveal the answer.
This is because due to Ram Effect the end of suction stroke is at higher than atmospheric pressure, while beginning of suction stroke is at atmospheric pressure (Pressure drops with further movement of piston). Further volume at end of suction stroke is higher, so a simple application of PV=nRT can reveal the answer.
Pupun said:
1 decade ago
At end of the suction process because at that point volume is maximum.
XYZ said:
1 decade ago
Just check the T-S diagram for 4 stroke engine.
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.
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