CNG - Compressed Natural Gas
CNG, standing for compressed natural gas, is a relic fuel alternative for diesel, propane fuel or petrol. Even though CNG combustion fabricates greenhouse gases, it is rated an environmentally unsoiled substitute to the fuels. CNG is safer as compared to other kinds of fuels when it spills. It disperses quickly when released and is lighter than air. CNG is manufactured by condensing natural gas that largely composed of methane, to 1% less of the capacity in the normal environmental pressure. CNG is issued and packaged in durable containers with a standard pressure of 2900-3200 psi, typically in circular or cylindrical shapes. It is employed in established internal gasoline combustion engine vehicles that converted to bi-fuel cars.
Natural gas cars are gradually used in South America and Europe owing to gasoline prices that keep increasing. Because of environmental concerns and elevated fuel prices, it is additionally being used in pickup trucks, medium-weight trucks for delivery, light-weight passenger cars and school trains and buses. CNG is mostly composed of methane, almost 95% of the CNG manufactured in California. The remaining 5% is composed of different gases that include minute amounts of water vapor. The rest of the gases are propane, butane, ethane plus other types of trace gases.
Methane falls under the hydrocarbon group, meaning the molecules have carbon and hydrogen atoms. Its plain molecular structure allows its ‘almost complete' combustion. For someone to pile up good fuel amount, the CNG has to be condensed to approximately 200 times the pressure of the atmosphere. This is always the pressure to be covered a mile and a quarter beneath the ocean. It necessitates that extraordinary compressors are "tapped into" the pipelines.
Brazil and Argentina are the countries with biggest fleets of cars that are powered by CNG with a united sum fleet of appropriately three million cars by 2008. Fuel conversion in Brazil has been made easy by a considerable price discrepancy with the liquid class of fuels. A 'Blue-network' of stations for the CNG is under development on the most important highways in Southern Cone to permit long-haul moving of fuel. In America, credits for federal tax are obtainable for purchasing new CNG cars.
Utilization of the CNG differs in from city to city. In California, it is utilized broadly in county fleets and local city. Public transportation too, uses the CNG, there being ninety communal fueling stations in the Southern part of California only. Even as the prices of the other fuel types go up, CNG has managed to remain constantly at 30% to 60% off in most of the places in California. In Utah, the subsidized CNG network at re-filling fuel stations is 0.85/gge. In the other parts of the country, prices for the CNG are on a standard rate of 2.50 dollars per gge. Apart from the auctions that use government cars and the conversions of the market, the only car supported by the CNG in America is the Honda Civic GX sedan, which is not easily available.
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Article Source: ArticlesBase.com
