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Differences between petrol and diesel engines?
sic difference between Petrol and Diesel engines that the difference of fuel and their mixture..in diesel we only compresses the Air and sprays Diesel but in Petrol Engines we compresses both the air and Petrol together and gets burnt with the the help of spark given by the Spark plug. I must add this, also the thermodynamic cycle is so different in diesel engines rather than petroleum engines. You can fined more in Reed's series volume 12
What are gasoline engines and diesel engines?
The Diesel cycle engine was named after the German engineer who invented it, Rudolf Diesel. A Diesel engine uses two principles: air gets hot when you compress it, and fuel will ignite if it gets hot enough. The engine compresses air introduced into the cylinder to a very high pressure. When fuel is injected it immediately ignites.
Which one is better to buy a petrol car or a diesel car?
There is no better. Each has plus and minus. Diesel has more torque (pulling power), will last longer, gets better mileage, but cost more to buy and maintain. Diesel fuel is also more costly. Petrol is cheaper to build, costs less to maintain, normally has more horsepower, and gasoline is cheaper than diesel. The decision on which to buy is much easier to make today due to how clean diesel engines are now.patrol cars are better than diesel ones if the use is very less.
What happened to the temperature of a liquid as it evaporates?
It gets hotter
What is the real name for diesel?
The name diesel is as real as it gets. It's named after Rudolph Diesel, a German engineer who designed the diesel engine, to which the term diesel refers. The fuel used to power these engines is a form of petroleum, called diesel after the engine.
Can you replace a gasoline engine with a diesel engine?
In theory, any vehicle or static plant that uses a gasoline (petrol) engine could use a diesel (i.e. compression-ignition) engine instead.Compared to petrol engines, diesels have a much higher compression ratio of around 20:1, rather than around 10:1. Diesels are heavier, lower revving, more efficient, and cooler running. Diesel engines are never throttled; so they always benefit from turbocharging. A diesel engine will typically consume only two-thirds (or less) fuel than does a petrol engine.These differing qualities affect the the choice of engine type.Motorcycles: these need light, powerful, high revving motors; so petrol engines are the natural choice. (There have been some petrol Wankel engines in bikes). At least one diesel bike has been built for military use; but it is inevitably heavy and slow, which defeats the object for most users.Cars can use either type. In Europe, where fuel is expensive, diesel cars are very popular; whereas in Iran and the USA, where fuel is very cheap, petrol cars are still the norm.Lorries (truck) need large engines of four litres or more capacity; and to use a petrol engine would be prohibitive in fuel consumption.Military; Many British Army vehicles (including tanks) used to use petrol engines; but now almost all military vehicles, except motorbikes (but see above) use diesel engine. Petrol is more inflammable and thus more dangerous is a army vehicle is hit by enemy fire; and, generally, diesel fuel is more readily available in war zones. Diesel gets viscous and waxy at very low temperatures; so fuel heaters will be needed before the engine can start. Once running, the fuel can be warmed using a heat-exchanger.Aircraft: Military and civilian jet and turboprop aircraft use aviation kerosene (paraffin) fuel; but most light aircraft use petrol engines. However, in Europe there are three firms (2 in the UK) making small turbocharged diesel aviation engines. The weight disadvantage is offset by a lighter fuel load; and aviation diesel (AVTUR) is less than a third of the price of AVGAS (aviation low-lead petrol). However, AVTUR does not have the lubricating qualities that road diesel fuel (DERV); and this issue must be factored into the design of an aviation diesel.Ships: Ships use huge very-long-stroke diesel engines that turn very slowly and which are very very efficient. They burn a very low-grade fuel that is very viscous and is rather like tar. They must be started using DERV, and then the marine fuel is heated until it is runny enough to be used.(Not that the QE2 used to have turbine engines. These were reliable and smooth, but very thirsty. The ship was re-engined with diesel generators that drove electric motors to power the vessel).
Benefits of Hybrid Diesel?
If you thought a hybrid car was a good deal, think again. A hybrid diesel will get you better mileage than a traditional gasoline engine. Diesel engines and diesel gasoline gets better fuel economy and diesel engines last longer too. What can be better than that? Choosing a hybrid diesel vehicle will get you the ultimate fuel economy while saving you the most money.
Why diesel engines not suitable for 2 wheelers?
As you know, the piston in the Diesel engine compresses the air in the cylinder so that it gets extremely hot. Fuel is then injected directly into the cylinder where it ignites and causes the power stroke. Because the Diesel engine operates at very high compression ratios it has to be very strong, and therefore heavy. The injector that squirts fuel into the cylinder has to be both strong and very precise in order to force a precise amount of fuel into the cylinder. For these reasons, Diesel engines tend to be heavier than petrol engines, and more expensive because of the very precise engineering required in manufacturing the injectors. So they are not practical for fairly inexpensive 2 wheel vehicles.
Do petrol have more calorific value than diesel?
Diesel has a calorific value about 5% higher than regular gas, but about the same as higher octane products. Therefore it should give slightly better mileage. and should cost about 12 cents a gallon more. As diesel was regarded for decades as a sort of by-product of the distillation process, it was able to be sold cheaper until recently when the price is nearer its true value. Diesel gets more m.p.g because of its higher calorific value, but, in order to get it to burn, it has to have a higher compression engines which are more sturdily built and permanently more expensive. If one built petrol engines with compression ratios of 11:1, they too would be more efficient in producing power (as are racing and airplane engines) but they pollute more and would also be more expensive. If you try to convert a gas engine to use diesel you will get an engine that breaks prematurely.
Which is better car petrol or diesel?
It depends on what your needs are: if you want to get better mileage get a diesel or hybrid petrol car - but they cost more to buy than regular cars that run on unleaded. Diesel usually has more power at low revs but much slower acceleration. Diesel smoke is not pleasant smelling and when diesel gets cold it becomes harder to burn. With new technologies - like variable geometry turbos - now even diesel cars have become more responsive to the throttle with reduced lag. Moreover diesel is cheaper than petrol in many countries. (In the UK diesel actually costs more per gallon than regular unleaded petrol.) If we consider heavy vehicles such as trucks and buses, to move the heavy load diesel is used because they need their energy produced as highest possible torque at low engine revs, not maximum road speed.
Why cant you use jp-8 in piston aircraft?
JP-8 is kerosene based. It is designed as a jet fuel; it can also be used in gas-turbines or in diesel engines, although it has caused some problems in diesel engines. It can't be used in gasoline engines because it is not sufficiently volatile. Diesel engines work by using very high compression ratios. To withstand these high compression ratios diesel engines need to be much more strongly built than gas engines; this makes them too heavy to be used in aircraft. There are a few piston aircraft engines that are available that will use this fuel. My avionics company has a diesel cessna. It has a service ceiling of 15K feet and gets there real fast.
What is the type of oil in Honda reflex?
I use 15w-40 oil that's designed for (diesel engines) and it works fine! Im just using the diesel oil because its left over from my 50cc which gets REALLY hot and this oil helps keep engines nice and cool!
