Chemistry, asked by vansh7733, 1 year ago

what is CNG?What is its advantage of uses as fuel

Answers

Answered by rahul6485
2
CNG is compressed natural gas
advantages
it burns almost completely leaving less carbon residue.

it can't be siphoned
Answered by durgesh2730
0
Worldwide, there were 14.8 million natural gas vehicles by 2011, led by Iran with 2.86 million, Pakistan (2.85 million), Argentina (2.07 million), Brazil (1.7 million) and India (1.1 million).[6] with the Asia-Pacific region leading with 5.7 million NGVs, followed by Latin America with almost four million vehicles.[2]

Several manufacturers (Fiat, Opel/General Motors, Peugeot, Volkswagen, Toyota, Hondaand others) sell bi-fuel cars. In 2006, Fiat introduced the Siena Tetrafuel in the Brazilian market, equipped with a 1.4L FIRE engine that runs on E100, E25 (Standard Brazilian Gasoline), Ethanol and CNG.

Any existing gasoline vehicle can be converted to a dual-fuel (gasoline/CNG) vehicle. Authorized shops can do the retrofitting and involves installing a CNG cylinder, plumbing, a CNG injection system and the electronics. The cost of installing a CNG conversion kit[7] can often reach $8,000 on passenger cars and light trucks and is usually reserved for vehicles that travel many miles each year. CNG costs about 50% less than gasoline and emits up to 90% fewer emissions than gasoline.[8]

Compressed natural gas (CNG) (methane stored at high pressure) is a fuel which can be used in place of gasoline (petrol), diesel fueland propane/LPG. CNG combustion produces fewer undesirable gases than the fuels mentioned above. It is safer than other fuels in the event of a spill, because natural gas is lighter than air and disperses quickly when released. Biomethane - cleaned up biogasfrom anaerobic digestion or landfills - can be used.

CNG is made by compressing natural gas, (which is mainly composed of methane, CH4), to less than 1 percent of the volume it occupies at standard atmospheric pressure. It is stored and distributed in hard containers at a pressure of 20–25 MPa (2,900–3,600 psi), usually in cylindrical or spherical shapes.

CNG is used in traditional gasoline/internal combustion engine automobiles that have been modified or in vehicles which were manufactured for CNG use, either alone ('dedicated'), with a segregated gasoline system to extend range (dual fuel) or in conjunction with another fuel such as diesel (bi-fuel). Natural gas vehicles are increasingly used in Iran, especially Pakistan,[1] the Asia-Pacific region, Indian capital of Delhi, and other large cities like Ahmedabad, Mumbai, Pune, Kolkata—as well as cities such as Lucknow, Kanpur, etc. Its use is also increasing in South America, Europe and North America because of rising gasoline prices.[2] In response to high fuel prices and environmental concerns, CNG is starting to be used also in tuk-tuks and pickup trucks, transit and school buses, and trains.

The cost and placement of fuel storage tanks is the major barrier to wider/quicker adoption of CNG as a fuel. It is also why municipal government, public transportation vehicles were the most visible early adopters of it, as they can more quickly amortize the money invested in the new (and usually cheaper) fuel. In spite of these circumstances, the number of vehicles in the world using CNG has grown steadily (30 percent per year).[3] Now, as a result of the industry's steady growth, the cost of such fuel storage tanks has been brought down to a much more acceptable level. Especially for the CNG Type 1 and Type 2 tanks, many countries are able to make reliable and cost effective tanks for conversion need.[4]

CNG's volumetric energy density is estimated to be 42 percent that of liquefied natural gas(because it is not liquefied), and 25 percent that of diesel fuel.[5]

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