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CNG engines create less polution than petrol and diesel engines.As it is using compress natural gas power develops more than the others and also develops more torque in the engine.which leads to give a lower fuel consumption.
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∙ 12y ago
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How much more efficient is a diesel engine over a petrol engine?
Overall it is about 20%
Is there an energy advantage if diesel contains 17 percent more chemical potential energy than petrol?
Yes, the energy output of an engine is governed by the chemical potential energy of the fuels. Assuming that the extra potential energy could be turned into useful work, there would be an energy advantage of diesel over petrol.
Why cant you use petrol and diesel together?
A Petrol engine use petrol that it ignites to cause an explosion in the cylinders, where the diesel engine works by compressing the mix of diesel and air, expose this to heat to make it explode but over a longer time. So a diesel engine has no spark plugs. The diesel needs pressure and heat, while petrol is explosive, will explode. So the two cannot be used together.
What is the adventages and disadvantages of petrol engion?
first of all its engine. ADVANTAGES - petrol is cheaper than diesel so cheaper to run. petrol cars generally cost less than diesel (a few 1000). petrol engines are usually faster than diesel off the line and have a higher top speed than a diesel car with the same sized engine. DISADVANTAGES - petrol is less economical than diesel and also diesel cars are much better for over taking than petrol as it has more torque (pulling power)
What are the advantages of a diesel van over a petrol van?
The main advantage of a diesel van over a similar petrol one is that the fuel ecomony is better with a diesel van, and in some cases the suggested length of time between servicing is greater. However the increased fuel ecomony needs to be set off against the higher cost of purchasing diesel and in many cases the higher purchase price.
2010 Audi A3 2.0 TDI quarter mile time?
Who cares it's a cheapskate diesel. Grow a pair and get a turbo charged petrol engine, just compare like for like so take your 2.0 ltr diesel and look at the equivalent 2.0ltr petrol it will make the diesel look poor. Its a diesel get over it.
Which is faster diesel engine car petrol engine car if same power same cc engine is used which will move faster?
It really comes down to power-to-weight, gear ratios, etc. The notion that diesel vehicles are significantly heavier or that diesels top out at lower RPMs isn't necessarily true...while there are gasoline engines which can run 15,000+ RPMs, they're not representative of a "typical" gas engine. Diesel vehicles have substantially higher torque, wider powerbands, and higher thermal efficiency, which can very easily give a diesel engined variant of a car a significant advantage over a gasoline powered version.
Why petrol engine is not used for large vehicles?
gasoline/petrol engines are considered to be much less reliable than a diesel engine. large rigs we see on the road today often have over a million miles on them. diesel is efficient and clean, and produces more potential energy. diesel engines also produce much more torque making it easier to tow or move things.
Why diesel engines are preferred over petrol engines in agricultural fields?
More torque, less maintenance, longer engine life, and uses less fuel.
Why used low sulfur diesel in military vehicle?
In NATO and most US aligned forces, they actually use JP-8, which is a kerosene derivative. As for why diesel would be preferable over unleaded gasoline/petrol, the reduced flammability of diesel, and advantage in low end torque produced by a diesel motor.
What is petrol and diesel?
Diesel and petrol (gasoline) are flammable fossil fuels containing hydrocarbons that we get when plants and animals get buried in the soil and decay over many years. It eventually forms crude oil which is refined into petrol or diesel.
Why can't petrol be compressed and ignited as in the case of diesel engines?
petrol self ignition temperature is high and requires a spark plug instead to ignite.where as diesel ignites automatically under pressure because of low self ignition temperature without any spark plug....hence petrol cannot be used inplace of dieselWarning: The above answer is absolutely incorrect. Petrol's flash point is significantly below, not above, diesel. The heat needed for ignition in a diesel engine comes from a compression ratio of over 20:1. Petrol engines have compression ratios of less than 10:1. Even at this lower compression ratio, petrol will still sometimes flash over or "detonate," causing the engine to "knock." This kind of nonsense is why I stopped posting here.
