CNG Overview

Compressed Natural Gas – CNG is natural gas compressed to a pressure of 200-250 Kg/cm² (g) to enhance the vehicle on-board storage capacity. Thus, the compressed form of NG is used as a fuel for transportation purposes.

As we know all types of vehicles can run on CNG by installing CNG kit. Kit is assembling of many components required to run existing vehicle on CNG. There are few basic components which are common in all type of kits, irrespective of the vehicles such as CNG storage cylinder, high pressure tube, pressure regulator, pressure gauge, change over switch, high pressure tube fittings, refuelling receptacle and air fuel mixer.

CNG Benefits :

Clean & Green fuel: Commonly referred to as the green fuel because of its lead and sulphur free character, CNG reduces harmful emissions. Due to the absence of any lead or benzene content in CNG, the lead fouling of spark plugs and lead or benzene pollution are eliminated.

Increased life of oils : Another practical advantage observed is the increased life of lubricating oils, as CNG does not contaminate and dilute the crankcase oil.

Mixes evenly in air : Being a gaseous fuel CNG mixes in the air easily and evenly.

Safety : CNG is less likely to auto-ignite on hot surfaces, since it has a high auto-ignition temperature (540 degrees centigrade) and a narrow range (5%-15%) of inflammability. It means that if CNG concentration in the air is below 5% or above 15%, it will not burn. This high ignition temperature and limited flammability range makes accidental ignition or combustion very unlikely.

Low operational cost : The operational cost of vehicles running on CNG, as compared to those running on other fuels, is significantly low. At the prevailing price of fuel in Gurgaon, operational cost of CNG vehicles is 68% lower than petrol and 36% lower than diesel.

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