Mechanical Engineering - IC Engines and Nuclear Power Plants - Discussion

Discussion Forum : IC Engines and Nuclear Power Plants - Section 3 (Q.No. 44)
44.
The increase in intake temperature of internal combustion engines will __________ efficiency.
have no effect on
increase
decrease
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
13 comments Page 1 of 2.

Keno Teshome said:   6 years ago
It depends on the types of engine!.

For Petrol engine increment of intake, temperature causes knocking and decreases the efficiency of the engine.

For Diesel or Dual engine, it is very important to increase the intake temperature of air for better efficiency of the engine!

Vinay said:   5 years ago
It depends on the types of engine!.

For Petrol engine increment of intake, temperature causes knocking and decreases the efficiency of the engine.

For Diesel or Dual engine, it is very important to increase the intake temperature of air for better efficiency of the engine!

Pradeep gk said:   8 years ago
1) If increases intake temperature density of air decrease so less air is available for combustion of fuel.

2) if increases intake temperature then the more work is required to compress the air Resulting efficiency is decreases.

Hriday rudra said:   6 years ago
For that purpose, we are using charged air cooler and aftercooler to gain more oxygen density. It will decrease efficiency.

So, the correct Answer is C.

Vaishnavi said:   6 years ago
The efficiency of otto cycle=1-(T4-T1)/(T3-T2).

IF T1 decreases then efficiency decreases.

Virat said:   5 years ago
Higher intake temperature causes knocking, reducing the efficiency.

AJAY said:   1 decade ago
But increase in temp should increase efficiency.

S Bera said:   8 years ago
It is different for diesel and Petrol engine.

KUKKU said:   1 decade ago
Depends upon engines whether si or ci.

Rohit said:   6 years ago
That's why we use intercooler on it.


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