Mechanical Engineering - IC Engines and Nuclear Power Plants - Discussion
Discussion Forum : IC Engines and Nuclear Power Plants - Section 2 (Q.No. 35)
35.
The increase of efficiency of a compression ignition engine, as the load decreases, is due to
Discussion:
6 comments Page 1 of 1.
Ashok kumar chauhan said:
8 years ago
Petrol -- Quantity.
Diesel -- Quality.
Diesel -- Quality.
(2)
Gopal Raut said:
8 years ago
Answer is perfect.
In petrol engine, quality of fuel is kept constant and quantity of fuel is varied according to load.
And in diesel engine quantity is kept constant and quality of fuel varied according to load.
In petrol engine, quality of fuel is kept constant and quantity of fuel is varied according to load.
And in diesel engine quantity is kept constant and quality of fuel varied according to load.
(1)
AVP said:
1 decade ago
Anybody explain this?
Sagar said:
10 years ago
Please explain it!
Prateek Sarkar said:
9 years ago
As the load decreases the mixture of air and fuel by qualitative or A/f ratio tends to go for the leaner region.
And leaner mixture burns for a longer time and quicker as temp required is low and due to high compression ratio the temp is reached readily so has less ignition delay.
And thus, the lower cut-off ratio for same compression ratio. So efficiency increases.
And leaner mixture burns for a longer time and quicker as temp required is low and due to high compression ratio the temp is reached readily so has less ignition delay.
And thus, the lower cut-off ratio for same compression ratio. So efficiency increases.
M.v.p said:
9 years ago
In short.
PETROL - QUALITY.
DIESEL - QUANTITY.
PETROL - QUALITY.
DIESEL - QUANTITY.
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