Mechanical Engineering - Automobile Engineering - Discussion
Discussion Forum : Automobile Engineering - Section 4 (Q.No. 21)
21.
For the same maximum pressure and temperature
Discussion:
10 comments Page 1 of 1.
Monsi Kurian said:
1 decade ago
For the same compression ratio Petrol engine is more efficient than diesel engine.
Subhasish said:
1 decade ago
I think B is correct. Otto cycle is more efficient than diesel.
Shivaraj chawariya said:
10 years ago
No, option A is correct because for the same maximum temperature heat supply is more in diesel engine. So diesel engine is more efficient than petrol engine.
Tejas said:
10 years ago
Option A is correct because same compression ratio than otto cycle is more efficient than diesel cycle.
Mantej Singh said:
9 years ago
It is Otto Cycle is thermally more efficient than the diesel cycle.
KHAN said:
8 years ago
Efficiency of otto cycle is more then diesel cycle.
MATHESH K said:
7 years ago
Diesel cycle is more efficient than Otto cycle for the condition of same maximum pressure and heat input. One can make a note that with these conditions, the Diesel cycle has higher compression ratio than that of Otto cycle. One should also note that the cycle which is having higher efficiency allows maximum expansion. The Dual cycle efficiency will be between these two.
Prasenjit said:
7 years ago
For the same compression ratio and heat addition, otto cycle is more efficient than dual combustion cycle than diesel cycle.
Prasenjit said:
7 years ago
Diesel cycle > Otto cycle 100%.
Sai said:
6 years ago
Since the higher the compression ratio of an engine the higher the thermal efficiency, so diesel engines generally have a better fuel efficiency than petrol engines. To power a similar-sized vehicle, a diesel engine will be about 15% - 25 % better on fuel efficiency than a petrol engine.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers