So you want to go green this year? These days there are many options if you want go for fuel efficiency and less emissions. One of the most obvious choices would have to be natural gas, because they are cheap and they extend your money for miles. However, before you buy a NG-powered vehicle, it’s better if you know some facts first about how it works and what kind of fuel it uses.
What is natural gas?
Natural gas is basically a combination of hydrocarbons with a little methane. It is also considered as one of the cleanest, safest, and efficient sources of energy right now. This is possible because natural gas has the highest hydrogen-to-carbon ratio of any type of hydrocarbon. That means it produces lesser greenhouse gases, thus less hazard to the environment and human health. Basically, there are no fundamental differences between gasoline-powered vehicles and natural gas vehicles. That’s because both types need the air to mix with the fuel before being fed to the cylinders. After which, the fuel is ignited by the spark, which lets the piston to move the pistons up and down. This repetitive action is the one that powers a vehicle that uses natural gas.
How is it stored?
Most natural gas vehicles use compressed natural gas or CNG. As its name implies, the fuel is stored inside vehicles under pressures that reach 3000-6000 lbs./square inch. If not compressed, natural gas can also be used in liquefied form or liquefied natural gas or LNG. In order for this work out, it first must be cooled down to several hundred degrees and must be contained inside thermal tanks. Basically, LNG is better than CNG because it requires less room for storage. The lesser the space it occupies, the better the space will be maximized for the vehicle.
How does it work?
Compared to diesel and gasoline vehicles, natural gas vehicles use closed systems in order to prevent fuel from escaping. Aside from that, it uses pressure-fit nozzles that lock fuel receptacles, thereby preventing the gas to escape. Because no gas escapes the engine, every bit of the fuel is used, unlike that of gasoline or other fuels.
What About Natural Gas Stations?
Every prospective natural gas vehicle buyer needs to ask about how natural gas stations function. Basically, natural gas is taken from the gas plant at very low pressures, before it will be compressed and placed inside storage tanks at very high pressures. Two kinds of things are needed for fueling natural gas and these are fast fill and time fill. The former uses a large compressor and a high-pressure container tank, while the latter uses a smaller compressor that takes an hour to be filled.
How does the engine work?
When you start a vehicle that uses natural gas, the gas flows from the storage cylinders to the fuel line. When the gas is nearing the engine, it needs to pass through the regulator in order for the pressure to be reduced. After which, it will be fed to the fuel injector and the cylinders.
Overall, these are the basic things that you need to know if you really want to try driving a CNG-powered vehicle. These vehicles have special needs and you need to know the details about them so you can enjoy their full benefits.
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