Diyvehiclerepair
- Why SI engine is not used in heavy vehicles?
- Why petrol is used in lightweight vehicles but diesel is used in heavy trucks?
- Why diesel is used in heavy vehicles instead of petrol?
- Why petrol engines and diesel engines are called as SI and CI engines respectively?
- Why petrol is not used in buses?
- Which engines are widely used for heavy duty trucks?
- Why is petrol used in light weight vehicles?
- Why petrol is used in lightweight vehicles?
- Why diesel engines are not used in bikes?
- Why petrol engines have less torque?
- Why diesel is used in engines?
- Why are diesel engines so heavy?
- Why are CI engines more efficient?
- Which is better Si or CI engine?
- What is difference between CI engine and SI engine?
Why SI engine is not used in heavy vehicles?
Petrol is highly combustible than Diesel. Petrol gives quick energy compared to Diesel. It is not suitable for heavy vehicles because by burning of petrol it gives lot of energy in a short time. At this circumstances, the vehicles has to move quick but due to heavy load it cannot as a result the cylinder may burst.
Why petrol is used in lightweight vehicles but diesel is used in heavy trucks?
why petrol is used in lightweight vehicles but diesel is used in heavy trucks? Because of their larger piston travel, hence they have higher load carrying capacity making them useful for trucks.
Why diesel is used in heavy vehicles instead of petrol?
High torque: Heavy vehicles are used to carry a high load like goods and passengers, hence these vehicles require high torque at low speed. Diesel engines can provide high torque than petrol engines hence diesel engines are preferred for heavy vehicles.
Why petrol engines and diesel engines are called as SI and CI engines respectively?
And in Compression Ignition (CI) engine, the air is compressed within the cylinder and the heat of this compression air is used to ignite the fuel. Since spark and compressed air is used to ignite the fuel in these engines, so they are called as spark ignition (SI) engine and compression ignition (CI) engine.
Why petrol is not used in buses?
We should remember that petrol is highly combustible than diesel. In comparison to diesel, petrol burns fast and provides quick energy. This makes petrol unsuitable for heavy vehicles.
Which engines are widely used for heavy duty trucks?
Most of the heavier trucks use four-stroke diesel engines with a turbocharger and intercooler. Huge off-highway trucks use locomotive-type engines such as a V12 Detroit Diesel two stroke engine.
Why is petrol used in light weight vehicles?
As heavy engine like diesel engine have higher end charge temperature for effective combustion because it is a self ignition engine. So generally petrol engines are used for light load engines.
Why petrol is used in lightweight vehicles?
Compression ratio for petrol is less than that of diesel.
Why diesel engines are not used in bikes?
Due to the high compression ratio, the diesel engine produces more vibration and noise as compared to the petrol engine. It is not possible for a light vehicle to handle this high vibration and noise. That's why diesel engines are not used in a motorcycle.
Why petrol engines have less torque?
A petrol engine has a shorter stroke which allows it to be revved more and put out more power. ... This makes it rev less but put out a lot of torque for the same engine size.
Why diesel is used in engines?
It converts the chemical energy stored in the fuel into mechanical energy, which can be used to power freight trucks, large tractors, locomotives, and marine vessels. A limited number of automobiles also are diesel-powered, as are some electric-power generator sets.
Why are diesel engines so heavy?
Diesel engines, because they have much higher compression ratios (20:1 for a typical diesel vs. 8:1 for a typical gasoline engine), tend to be heavier than an equivalent gasoline engine. ... Diesel engines must be fuel injected, and in the past fuel injection was expensive and less reliable.
Why are CI engines more efficient?
CI engines operate with a relatively low proportion of fuel to air ratio (what we call “lean”). The ratio of specific heats is higher, thereby resulting in a higher fuel conversion efficiency. Ultimately, we observe lower fuel consumption and lower emissions of carbon dioxide.
Which is better Si or CI engine?
6... Thermal efficiency: Due to lower compression ratio, maximum value of thermal efficiency is lower in an S.I engine compared to that of C.I. 7... Weight : S.I engines are generally lighter in weight due to their lower peak pressures as compare to C.I engines that are generally heavier, due to higher peak pressure.
What is difference between CI engine and SI engine?
Difference Between Si engine and Ci engine
Si engine is internal combustion engine that operates on the principle of spark ignition. It uses petrol and utilizes the Otto cycle. The diesel (Ci) engine is also an internal combustion engine, which uses diesel fuel and operates on diesel cycle.
