Natural Gas Fuel

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NATURAL GAS FUEL (NGV)

Introduction

Utilizing natural gas as vehicle fuel offers many benefits compared with traditional petroleum-

based fuels like diesel and gasoline. One benefit is the tendency for Natural Gas to better maintain

price stability. This tendency can be attributed to the fact that the United States has substantial

domestic Natural Gas reserves. This allows Natural Gas price to attain historically less volatility

than petroleum based fuels. In addition to price stability, when natural gas is purified, its energy

content is more cost effective than traditional fuels. This means that vehicles run more efficiently

and with less maintenance due to the cleaner burn of the fuel.

Therefore, the combination of lower costs and improved price stability makes natural gas

an attractive business option for fleets with the high fuel consumption trends. SAFETY CNG, unlike

gasoline, dissipates into the atmosphere in the event of an accident. Gasoline pools on the ground

creating a fire hazard. The fuel storage cylinders used in NGVs are much stronger that Gasoline fuel

tanks. The design of NGV cylinders are subjected to a number of federally required severe abuse

test, such as heat and pressure extremes, gunfire, collisions and fires. NGV Fuel systems are

sealed which prevents any spills or evaporative losses. Even if a leak were to occur in an NGV fuel

system, the natural gas would dissipate up into the air because it is lighter than air. Natural gas has

a high ignition temperature, about 1,200 degrees Fahrenheit, compared with about 600 degrees

Fahrenheit for gasoline. It also has a narrow range of flammability, that is, in concentrations in airbelow about 5 percent and above about 15 percent, natural gas will not burn. The high ignition

temperature and limited flammability range make accidental ignition or combustion of natural gas

unlikely. Natural gas is not toxic or corrosive and will not contaminate ground water.


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Installation

The installation of the gas equipment comprises the following parts:

1) Pressure Regulator (Reducer)2) Gas/Air Mixture (or Electronic Fuel Injector)3) NGV Filling Valve4) High-pressure Lines5) NGV Tank and Valve6) Gasoline/NGV Selector Switch7) Manometer8) Gasoline Electro valve (if needed)9) Heating system10)Emulator


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Disadvantages & Advantages of Natural Gas

Advantages

Clean Fuel

The most positive aspect of natural gas is its cleanliness. It is the cleanest fossil fuel available.Carbon dioxide and water vapor are the only vapors emitted by natural gas burning. Especiallycompared to oil and carbon, which emits high levels of nitrogen oxide and sulfur oxide, natural

gas is more of a help to the environment (in this sense) than it is a harm. But it still doesn't clean

the air. The vapors it emits are not as bad as most other emissions, but they're not as clean as the

air itself.

Economical

In the United States, it is estimated that we have our own natural gas sources for the next 100years. Since this doesn't require any overseas trading with other countries' energy supplies, thewealth of the natural gas resource is here for the harvesting. This is a new advantage however,

because natural gas was not always considered such an economic choice in energy policy.

Disadvantages

Greenhouse Effect

o The major disadvantage of natural gas is its contribution to the greenhouse effect. While it is notthe most dangerous emission (e.g., oil or man-made gases), it still has a damaging effect on our

air. When it is burned, it produces carbon dioxide. And even when it is not burned, the processes

of producing, storing and transporting natural gas require the use of energy.

Explosive

o A disadvantage that can easily be avoided is the possibility of natural gas exploding. When nearnatural gas, fires should never be started. If a flame touches natural gas, it could result in huge

explosions. For the most part, taking precautions when working with or around natural gasshould prevent the possibilities of explosions (e.g., no smoking), but accidents do happen.


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Misconceptions

o Natural gas is often associated with cars, but the fuel that gas stations have at the pump (eventhough we call it "gas") is not natural gas. Natural gas is also entirely different from oil.

Natural gas is not a liquid, it is what its name indicates, a gas. It becomes 'wet' when

hydrocarbons are removed from the molecules. What many people don't realize is that naturalgas is what many power plants use to create electricity.

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Natural Gas Fuel