Glance @ Five Differences Between CNG And LPG Gas
LAGOS OCTOBER 24TH (NEWSRANGERS)-The recent sad incident in Edo state has raised concerns about the safety of the switch from petrol-powered cars to CNG.
The accident indicated the need to critically differentiate between CNG (Compressed Natural Gas) and LPG (Liquefied Petroleum Gas) commonly used across Nigeria. Understanding these differences is important for safety and effective use.
Engineer Samuel Ushe, Chief of Operations at the National Metrology Institute, explained the differences between CNG and LPG on Channels TV’s Morning Brief on Monday.
The National Metrology Institute is a department under the Standards Organization of Nigeria SON and is involved in calibration and scientific metrology. It is the reference point and standard for metrology in Nigeria.
Here are 5 differences between CNG and LPG
Composition
CNG is designed to store and transport compressed natural gas and consists mainly of methane, which is a natural gas as highlighted by Engineer Samuel Ushe
Methane is a cleaner-burning fuel, releasing fewer emissions compared to other fossil fuels, making it a preferred alternative in vehicles aiming to reduce carbon.
However, the primary components of LPG are propane and butane, which are leftovers from the processing of natural gas and the refining of oil. LPG uses lighter, less thick cylinders than CNG because of its lower pressure and less complicated storage needs; CNG’s high-pressure demands far more durable materials. These factors were addressed during the discussion of conversion safety concerns.
Storage State
CNG cylinders are designed to withstand the extremely high pressure needed to store methane, which can reach up to 300 bars. CNG cylinders come in various sizes, ranging from 5 liters to 90 liters, depending on the vehicle’s requirements.
LPG cylinders are more suitable for home uses like cooking because it is stored as a liquid at a considerably lower pressure (around 5–10 bars), in contrast to CNG. LPG cylinders are also available in various quantities like 5 kg and 50 kg.
In contrast to CNG cylinders, which are smooth and do not have welded joints, LPG cylinders may have welded joints
Energy Content
Compared to LPG, CNG has a lower energy density. This indicates that to produce the same amount of energy as LPG, more CNG is needed, and cars will need bigger storage tanks or more frequent refueling.
LPG is more energy-efficient per unit volume than CNG because it has a higher energy density. Because of its ability to produce greater energy from a lesser quantity of fuel, LPG is commonly used as an alternative fuel in some types of cars as well as for cooking and heating.
Cylinder Material
CNG cylinders are made from thicker, heavier materials like steel or composite materials to withstand high pressure. Using the wrong container will not be able to hold the high pressure that comes with CNG. The thickness of the material minimum is 12.7 millimeters.
LPG cylinders are lighter, usually made from steel or aluminum due to the lower pressure they are stored under, and the thickness of the material is just about 4.0 millimeters thickness.
Usage and Applications
Vehicles generally use compressed natural gas (CNG) as a cleaner option to gasoline and diesel and to address the rising cost of fuel, the Nigerian government is promoting the move from petrol-powered automobiles to CNG-powered cars. Since CNG is an economical and sustainable fuel, it is utilized in cars that have been converted to run-on natural gas.
LPG is more widely used in homes for cooking, like in gas stoves powered by LPG cylinders. LPG is also utilized as a heating fuel and occasionally as an automobile fuel. For these uses, its high energy level makes it effective, and its cylinders are a common sight in many Nigerian households.
Vanguard
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Posted by News Rangers
on Oct 24 2024. Filed under National.
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