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
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.
DSM said:
1 decade ago
Not exceeds 45 percent.
Ketan said:
1 decade ago
30% is maximum thermal effect in C.I. engine but 25% in case of S.I. engine.
Afrasiyab said:
1 decade ago
35% in si and 30% in ci.
Abhinesh said:
1 decade ago
25% for S.I and 40% for C.I.
ABDELRAHMAN said:
10 years ago
Maybe in diesel engine is 35%.
Jeet said:
10 years ago
Eff. is around 45% to 50%.
Ravi Raj said:
9 years ago
The actual range of otto and diesel engines efficiency is 30 - 40%.
Vipin kumar pal said:
1 decade ago
Diesel engine has the highest thermal efficiency of any standard internal or external combustion engine due to its very high compression ratio. Low-speed diesel engines can have a thermal efficiency that exceeds 50%.
Heisenberg said:
9 years ago
40% for diesel is right!
Asif said:
9 years ago
Thermal efficiency of diesel engine is upto 35% only.
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