FACT-CHECK: Can CNG Cars, Trucks, Vehicles Explode?
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| Presidential CNG Initiative (PCNGI) |
CLAIM: Social media space is rife with misinformation and unverified information about the possibility of CNG cars, trucks, vehicles exploding thereby raising safety concerns among vehicle owners who are considering CNG conversion, ALAO ABIODUN writes.
VERDICT: CNG vehicles run on natural gas, which is odourless. It should not be confused with liquefied petroleum gas (LPG), which is popularly called “cooking gas”.
CNG cylinder is thick enough to withstand the pressure of what it contains. Although a cylinder can explode, such occurrences are rare with CNG and typically result from specific conditions.
Experts have allayed the fear of possible explosion, stressing that the CNG cylinder is thick enough to withstand the pressure of what it contains.
Introduction
Compressed natural gas (CNG) is an environmentally beneficial alternative to petrol. CNG has non-toxic components that do not pollute nature and groundwater.
This special feature makes it better and more environmentally friendly than petrol and diesel. It is made by compressing natural gas, methane, to less than 1% of its original volume.
Once converted, a vehicle can switch between CNG and petrol or diesel. The switch occurs after the engine starts, with two key modalities in the Electronic Control Unit (ECU).
A few months ago, President Bola Tinubu announced that all government ministries, departments, and agencies should only acquire vehicles powered by compressed natural gas (CNG).
This directive is part of the administration’s plan to make the country more energy-efficient and less reliant on petrol.
To achieve this gas transition objective, the Federal Government, through the Minister of Finance and Coordinating Minister of the Economy, Wale Edun, directed Nigeria Customs Service to immediately apply a zero percent duty on CNG, LPG, CNG equipment components, conversion and installation services, LPG equipment components, conversion and installation services, and all equipment and infrastructure related to the expansion of LPG and the Presidential CNG Initiative, including conversion kits.
Natural gas, rather than diesel or petrol, helps to minimise small soot particles that can aggravate asthma and other respiratory problems. CNG emits far fewer hydrocarbon emissions than LPG, petrol, or diesel.
Because CNG cars use clean fuel, they have a healthier engine. When using CNG, the spark plugs and converters remain in good condition. As a result, CNG provides a more efficient engine by reducing carbon deposits during combustion.
Findings
Findings by our correspondent revealed that, unlike petrol vehicles, CNG vehicles run on natural gas, which is odourless.
However, CNG should not be confused with liquefied petroleum gas (LPG), which is popularly called “cooking gas” and is stored in cylinders that are normally used for domestics.
Although CNG is a byproduct of crude oil production just like petroleum and diesel, it is considered safer for the environment.
According to Central U.P. Gas Limited, an Indian-based company, their usage considerably lowers the release of harmful gasses such as carbon dioxide and carbon monoxide which contribute to carbon emissions. Compared to petrol vehicles, the carbon emissions released by CNG vehicles are 5 to 10% lower.
The Chief Executive Officer of Operation at Zeta Power Limited, Kyriakos Schizas allayed the fear of possible explosion, stressing that the CNG cylinder is thick enough to withstand the pressure of what it contains.
Although a cylinder can explode, but such occurrences are rare and typically result from specific conditions.
Here are some key points to consider:
Pressure and Design: CNG cylinders are designed to withstand high pressures (typically around 3,000 to 3,600 psi). They are constructed from strong materials and undergo rigorous testing to ensure safety.
Overpressure: An explosion can occur if the cylinder is subjected to extreme heat, causing the gas inside to expand and increase pressure beyond the cylinder’s capacity. This is why CNG cylinders should never be exposed to direct flames or extreme temperatures.
Physical Damage: If a cylinder is damaged (e.g., through impact or corrosion), it can compromise the structural integrity, which may lead to failure and potentially an explosion.
Improper Handling: CNG cylinders must be handled and stored according to safety regulations. Improper handling or maintenance can increase the risk of leaks or ruptures.
Safety Features: Modern CNG cylinders are equipped with safety features, such as pressure relief valves, to prevent catastrophic failures. While a CNG cylinder can explode under certain conditions, it should be noted that proper design, handling, and maintenance significantly reduce this risk.
Tips to maintain your CNG Car:
Replace your spark plugs with CNG-compatible ones
Because they are responsible for fuel combustion, spark plugs are one of the most crucial components of an engine. Make sure you replace your spark plugs with CNG-compatible ones when installing a CNG kit. If you can’t find CNG-compatible spark plugs, you’ll have to narrow the distance between the spark source and the spark plug’s metal tip.
Unauthorized CNG kits must be avoided
Modern CNG automobiles come with factory-installed CNG kits, and it’s always preferable to buy a CNG car with a CNG kit already installed. However, the majority of individuals attempt to convert their petrol cars to CNG cars, and in the process, they wind up having a local mechanic install a CNG kit. Avoid using local dealers or mechanics to install CNG kits because this could result in leaks or damage to the car’s mechanicals.
Regular checks
Check the cylinder and fuel lines for leaks or damage regularly if you own a CNG vehicle. Overfilling the cylinder should also be avoided, as this can result in gas leaks.
CNG leakage can be deadly because it can result in an explosion. As a result, you should inspect the cylinder for symptoms of damage or leaks regularly, and if necessary, have the CNG kit serviced by a qualified technician.
Conclusion
There is a need for intensified public sensitisation on the benefits of CNG as compared to petrol.
The popular misconception that the gas used to power vehicles is the same as the one used in kitchens should be dismissed.
Switching to compressed natural gas will not only help car owners save money but also contribute to a more sustainable environment.
CNG cylinders are made of reinforced materials designed to withstand extreme conditions, far more robust than traditional fuel tanks.
The safety features of CNG systems, including pressure release valves and automatic shut-off sensors, ensure safety in case of leaks or irregularities.
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