Science, asked by sashishar, 1 year ago

why we use diesel & petrol for different engines

Answers

Answered by BrainlyWarrior

So only petrol engines equip spark plugs. Higher compression ratio increases the tendency of knocking inpetrol. Now when petrol is injected indiesel engine, it may not burn because it requires very high compression ratios to reach the self ignition temperature of it.

sashishar: higher compresion ratio means

BrainlyWarrior: Increasing the compression ratio considerably improves thermal efficiency. The compression ratio of recent gas engines is generally around 10:1 to 12:1. Theoretically, if the compression ratio is raised from 10:1 to 15:1, the thermal efficiency will improve by roughly 9%.

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