CNG, also known as compressed natural gas, is an eco-friendly alternative to gasoline. Made by compressing natural gas (methane) down to less than 1% of its volume, CNG fuel is safer than gasoline and diesel because it is non-toxic and does not contaminate ground water. This natural gas is the same gas that you use daily to heat your home and water, cook on the stove and even to dry your clothes in a dryer. The use of CNG fuel is becoming more popular with both commercial and non-commercial vehicles.
CNG Full Form
Uses of CNG:
Two forms of natural gas are currently used in vehicles: compressed natural gas (CNG) and liquefied natural gas (LNG). Both are domestically produced, relatively low priced, and commercially available. Considered alternative fuels under the Energy Policy Act.
Compressed Natural Gas
CNG is produced by compressing natural gas to less than 1% of its volume at standard atmospheric pressure. To provide adequate driving range, CNG is stored onboard a vehicle in a compressed gaseous state at a pressure of up to 3,600 pounds per square inch.
CNG is used in light-, medium-, and heavy-duty applications. A CNG-powered vehicle gets about the same fuel economy as a conventional gasoline vehicle on a GGE basis. One GGE equals about 5.66 pounds of CNG.
Liquefied Natural Gas
LNG is natural gas in its liquid form. LNG is produced by purifying natural gas and super-cooling it to -260°F to turn it into a liquid. During the process known as liquefaction, natural gas is cooled below its boiling point, removing most of the extraneous compounds found in the fuel. The remaining natural gas is primarily methane with small amounts of other hydrocarbons.
Basic Properties of CNG:
There are a few fundamental properties of this gas that helps it to be identified from diesel or petrol. It helps to understand CNG meaning. Let’s check out a few:
- It is lighter than air
- Doesn’t have any taste
- It is devoid of color and is non-toxic
- Ignites at a higher temperature
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