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What is this Octane number or RON (Research Octane Number)? Octane is the hydrocarbon constituent contained in gasoline fuels . as...

What is an Octane Number

What is this Octane number or RON (Research Octane Number)?


Octane is the hydrocarbon constituent contained in gasoline fuels . as well as It is a colorless liquid that boils at about 125 ° C (260 ° F). Isooctane, a component of this octane component, is used as a reference number for determining gasoline or LPG fuel standards to resist self-combustion. 

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Accordingly, the octane number of the gasoline was created by the chemical compound N-heptane (H3C (CH2) 5CH3 / C7H16 and the inorganic compound iso-octane (CH3) 3CCH2CH (CH3) 2 / (C8H18) By mixing 
For example, a mixture of 90% iso-octane and 10% N-heptane is classified as 90 octane.

The 90 octane classification does not contain the equivalent of iso-octane and n-heptane, but it does show the same explosion resistance characteristics. 

Generally, gasoline for sale in general does not only contain iso-octane and n-heptane. And with that Many other hydrocarbons and other additives have been added. Because some fuel ignition resistance is higher than pure iso-octane, Defined to accommodate over 100 number of octane. 

Accordingly, N-heptane rated as 0 and oz-octane as 100 octane.

So the shortest answer for octane number

is the value of fuel-bearing compression before combustion. 

On the other hand, 
the high octane rating is also known as resistance to fuel self-combustion before high pressure.

This is why high-performance engines with high compression engines (gasoline direct ignition / GDI) require higher octane fuel (premium). Accordingly, high octane fuel use mostly to improve efficiency and efficiency with high-compression engines and to reduce emissions by burning the full entire fuel.

In general, the internal combustion engine (ICE)

step 1 (inlet/intake stroke)

The inlet valve opens and air and fuel mixture or air mixture into the cylinder.

step 2(Compression Stroke)

The piston moves up, compressing the air and fuel together, increasing the temperature and pressure of the cylinder.

Step 3 (Power Stroke)

The combustion of fuel gases in the car produces the power that the car does, and the power pushes the piston (s) down.

Step 4 (Exhaust Stroke)

The piston (s) move upwards and the exhaust valves open, pushing the combustion gas out of the combustion chamber, creating the force that is generated by the mixture of fuel, eventually moving the car. 

This is called a 4 stroke, or four-stroke cycle, because these steps are repeated in a four-cycle.

So what's going on here with Octane?

As mentioned above, high-octane series fuel is self-igniting / pre-ignited at high pressure and Alternative capabilities can also increase the energy and efficiency of the  reducing emissions 

These options include increasing the compression rate, changing the ignition timing, inserting less fuel into the cylinder, and more. 

Also, high-octane engines designed to burn fuel and reduce emissions.

Generally, Even if it does the octane 91 or 92,95 and 98. 91 and 92 are standard octaves designed for most car engines. On the other hand, compression rates used in most cars which match the octane ratio is 91 or 92 or higher. 

Due to the use of any fuel less than the octane ratio 91, Pre-ignition and knocking cause a risk of damage to the engine. This means that high-octane gasoline can withstand more heat and pressure before self-combustion.

Accordingly, the most commonly used for petrol cars today the standard 91 or 92 octane series,95 or 98 octane series are different from fuels. This means that performance engines designed to use high compression ratios of Octane 95 and 98 fuels can work, and that engines designed to run on Octane 91 or 92 fuels are not harmful but have no a benefit 

On the other hand, it is a waste of money and there is no possibility to run extra kilometers.

Therefore, the octane number is the ability to withstand the pressure and heat of the fuel before the fuel is burst. This means that only a properly engineered engine can High octane has the potential to reduce emissions by increasing fuel efficiency.

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