The gas typically added to a semi-trailer is compressed natural gas (cng) or liquefied natural gas (lng), both of which are clean energy sources that can significantly reduce exhaust emissions and operating costs.
Compressed natural gas (cng)
Cng is a natural gas stored under high pressure, with high combustion efficiency and minimal emissions, making it an environmentally friendly energy source.
Its volume is smaller than liquefied natural gas, making it easier to transport and use, but its energy density is lower, and its range May not be as good as vehicles that use gasoline.
Liquefied natural gas (lng)
Lng is liquefied natural gas with a smaller volume and higher energy density, resulting in a longer range.
However, the construction and maintenance costs of lng are relatively high, and the number of refueling stations is relatively small.
In addition, some semi trailers May also use liquefied petroleum gas (lpg) as fuel, which is a mixture of propane and butane with high energy density but high storage and transportation requirements.
Overall, the choice of gas for semi-trailer depends on factors such as local infrastructure, fuel costs, and environmental policies.
