World's Longest Queue for CNG
Govt. of Pakistan failed to handle CNG crisis
near about 1500 vehicles in a queue on a single CNG filling station !!!
People dont calculate the value of time they are wasting in these long queues.
click here to watch the Video of the Longest queue for CNG
click here to watch the Video of the Longest queue for CNG
CNG Line in Islamabad, see this almost everyday on way to work... I think non availability of crisis on one side, but people also need to realise keh jitni deer intizaar kar kay 100 to 150 bacha rahe hain utne deer main double se zayada kama bhee sakte gain...
Compressed natural gas (CNG)
Compressed natural gas (CNG) is a fossil fuel substitute for gasoline (petrol), diesel, or propane/LPG. Although its combustion does produce greenhouse gases, it is a more environmentally clean alternative to those fuels, and it is much safer than other fuels in the event of a spill (natural gas is lighter than air, and disperses quickly when released). CNG may also be mixed with biogas, produced from landfills or wastewater, which doesn't increase the concentration of carbon in the atmosphere.
CNG is made by compressing natural gas (which is mainly composed of methane [CH4]), to less than 1% of the volume it occupies at standard atmospheric pressure. It is stored and distributed in hard containers at a pressure of 200–248 bar (2900–3600 psi), usually in cylindrical or spherical shapes.
CNG is used in traditional gasoline internal combustion engine cars that have been converted into bi-fuel vehicles (gasoline/CNG). Natural gas vehicles are increasingly used in the Asia-Pacific region (especially Pakistan), Latin America, Europe, and America due to rising gasoline prices. 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 of this conversion is a barrier for CNG use as fuel and explains why public transportation vehicles are early adopters, as they can amortize quicker the money invested in the new (and usually cheaper) fuel. In spite of these circumstances the number of vehicles in the world that use CNG has grown steadily at a 30 percent annual rate.
CNG's volumetric energy density is estimated to be 42% of liquefied natural gas's (because it is not liquefied), and 25% of diesel's.
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