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Methane, the main component of natural gas, has an autoignition temperature of 580 °C, [48] whereas gasoline and diesel autoignite at approximately 250 °C and 210 °C respectively. With a compressed natural gas (CNG) engine, the mixing of the fuel and the air is more effective since gases typically mix well in a short period of time.
Compressed natural gas (CNG) is a fuel gas mainly composed of methane (CH 4), compressed 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 20–25 megapascals (2,900–3,600 psi; 200–250 bar), usually in cylindrical or spherical shapes.
One GGE of natural gas is 126.67 cubic feet (3.587 m 3) at standard conditions. This volume of natural gas has the same energy content as one US gallon of gasoline (based on lower heating values: 900 BTU/cu ft (9.3 kWh/m 3) of natural gas and 114,000 BTU/US gal (8.8 kWh/L) for gasoline). [22]
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2012 Honda Civic GX with the blue diamond CNG sticker and the new natural gas badging. The GX was originally introduced with a 1.6 liter inline-four engine (I4). The 2001 model makeover carried a 1.7 liter engine. Beginning in model-year 2006, the 1.8 liter inline four-cylinder engine was introduced to the civic lineup.
The Cummins L10 also has a sister engine which runs on compressed natural gas (CNG). [2] The engine was introduced in 1992 as the L10G before being replaced by the L Gas Plus in 2001 until it became the ISL G in collaboration with Westport Innovations in 2008, now based on the C-series engine architecture. The ISL engines were manufactured at ...
Natural gas burning on a gas stove Burning of natural gas coming out of the ground. Natural gas (also fossil gas, methane gas, and gas) is a naturally occurring compound of gaseous hydrocarbons, primarily methane (95%), [1] small amounts of higher alkanes, and traces of carbon dioxide and nitrogen, hydrogen sulfide and helium. [2]
Gas engines that run on natural gas typically have a thermal efficiency between 35-45% (LHV basis)., [12] As of year 2018, the best engines can achieve a thermal efficiency up to 50% (LHV basis). [13] These gas engines are usually medium-speed engines Bergen Engines Fuel energy arises at the output shaft, the remainder appears as waste heat. [8]