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Diesel is a more combustible fuel than petrol, therefore less fuel is required to generate the same power as petrol. This also means that spark plugs aren't required, like in a petrol engine, since the diesel will ignite off engine compression alone. This also makes the engine arguably more reliable since there are less parts, and less things to go wrong.
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Is the volumemetric efficiency of diesel engine more than a petrol engine?
Yes
Which is more efficient a petrol engine or a diesel engine?
It will depend upon the conditions. Under normal operating conditions a diesel engine is more efficient than a petrol engine.
Why is petrol engine RPM is greater than diesel engine?
for same power diesel engine produces more torque @ less rpm whereas petrol engine produces less torque @more rpm this difference is due to different combustion processes of diesel and petrol
Why diesel gives more milage than petrol and petrol car costly than diesel?
Diesel engines are more efficient and do use less fuel, but they do not cost less than a petrol engine, they cost more. Diesel fuel also costs more. A diesel engine will however last longer.
Why diesel engine is more better than petrol engine?
because diesel engine has the maximum efficiency than petrol engine. also diesel engine can handle more load than petrol,as we can see in case in case of heavy vehicles. --- Fuel Savings result because the Air to Fuel ratio is MUCH more "lean" (more air) in a Diesel than in a gasoline/petrol engine. At idle, the optimal mixture for gasoline is 14.7 parts of AIR to one part FUEL. Compare that to a Diesel engine, where the ratio is 50:1, and you'll note a significant savings. --- Other Advantages: Diesel designed his engine to run on virtually any available fuel (e.g.; vegetable oil) for times of short supply of petrol/gasoline. The diesel engine has higher TORQUE, meaning that it can haul larger loads than a gas/petrol engine. There is no Ignition Circuit to fail on a diesel engine. The ignition is achieved by compression and a "glow plug" which remains heated between piston cycles. ---
Is the petrol engine is costly thab diesel engine?
No, diesel engines cost more to build than petrol engines. They are built much heavier.
Why does a petrol engine have more power than a diesel engine?
A petrol engine revs higher, which allows it to burn more fuel and output more power.
Is petrol engine or diesel engine better?
AnswerIt's more a question of being different than one being outright better than the other. Diesels have the possibility to give better fuel efficiency, but tend to run rougher for instance. And for the same engine size/weight, a diesel will have a lower peak power output.So, what's the "better" engine will depend on the engineering requirements and you preference.AnswerA petrol engine runs on petrol and a diesel engine runs on diesel- this is the basic difference between the two. But yes, jokes apart there are many more differences too. In a vehicle having a similar mass a diesel engine is more efficient most of the times than a spark-ignited petrol engine which results in the diesel having a lower fuel consumption and a cost effective solution for the consumer.
Does temperature make petrol evaporate?
In a petrol engine, the petrol is evaporated before it is burnt, this means it burns better, increasing engine efficiency.
Can you jump start a flat battery on a diesel car from a petrol car?
The diesel battery is bigger as it take a lot more to get a diesel engine going. Best bet is to charge the diesel battery using the petrol, connect the 2 and leave the petrol engine running.
How much more efficient is a diesel engine over a petrol engine?
Overall it is about 20%
What is the difference between petrol and diesel engines?
diesel engines doesn't use spark plug but uses heater plug.petrol engines produces more torque than petrol engines but petrol engines produces more acceleration than diesel engines.petrol engine is faster to be heated than diesel engine.
