Mechanical Engineering - IC Engines and Nuclear Power Plants - Discussion

Discussion Forum : IC Engines and Nuclear Power Plants - Section 1 (Q.No. 30)
30.
The thermal efficiency of diesel engines is about
15%
30%
50%
70%
Answer: Option
Explanation:

The thermal efficiency of diesel engines is about 30-50%. This means that for every 100 units of fuel energy input, the engine is able to convert 30-50 units of that energy into useful work. The remaining energy is lost as heat or exhaust.

The maximum theoretical efficiency of a diesel engine is about 70%. However, this is rarely achieved in practice due to factors such as friction, heat loss, and incomplete combustion.

Discussion:
36 comments Page 3 of 4.

Darshan said:   4 years ago
For petrol 25%.

And for diesel 30 to 35%.

Nisar said:   7 years ago
It is nearly 35% - 40% for diesel engine.

Nisar said:   7 years ago
It is nearly 35% - 40% for diesel engine.

ABDELRAHMAN said:   10 years ago
Maybe in diesel engine is 35%.

Abhinesh said:   1 decade ago
25% for S.I and 40% for C.I.

Jeet said:   10 years ago
Eff. is around 45% to 50%.

Heisenberg said:   9 years ago
40% for diesel is right!

Afrasiyab said:   1 decade ago
35% in si and 30% in ci.

DSM said:   1 decade ago
Not exceeds 45 percent.

Rajat said:   5 years ago
It is Not exceed 50%.


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