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  2. Jet fuel - Wikipedia

    en.wikipedia.org/wiki/Jet_fuel

    A visual check may detect high concentrations of suspended water, as this will cause the fuel to become hazy in appearance. An industry standard chemical test for the detection of free water in jet fuel uses a water-sensitive filter pad that turns green if the fuel exceeds the specification limit of 30 ppm (parts per million) free water. [28]

  3. Aviation fuel - Wikipedia

    en.wikipedia.org/wiki/Aviation_fuel

    The low specific energy of natural gas even in liquid form compared ... density at 15 °C is 690 kg/m 3 (30.81 MJ/litre). Kerosene type BP Jet ... This extra weight ...

  4. Aviation biofuel - Wikipedia

    en.wikipedia.org/wiki/Aviation_biofuel

    Biofuels are biomass-derived fuels from plants, animals, or waste; depending on which type of biomass is used, they could lower CO 2 emissions by 20–98% compared to conventional jet fuel. [4] The first test flight using blended biofuel was in 2008, and in 2011, blended fuels with 50% biofuels were allowed on commercial flights.

  5. Is Virgin Atlantic ‘Flight100’ the key to sustainable aviation?

    www.aol.com/virgin-atlantic-flight100-key...

    The amount of fuel burnt (about 45 tons) and carbon dioxide generated by the seven-hour Virgin Atlantic Flight 100 is exactly the same as if normal Jet A1 kerosene had been used.

  6. Avgas - Wikipedia

    en.wikipedia.org/wiki/Avgas

    [2] [3] Avgas has an emission coefficient (or factor) of 18.355 pounds per US gallon (2.1994 kg/L) of CO 2 [4] [5] or about 3.07 units of weight CO 2 produced per unit weight of fuel used. Avgas is less volatile, with a Reid vapor pressure range of 5.5 to 7 psi, than automotive gasoline, with a range of 8 to 14 psi.

  7. Liquid fuel - Wikipedia

    en.wikipedia.org/wiki/Liquid_fuel

    On June 20, 2006, DuPont and BP announced that they were converting an existing ethanol plant to produce 9 million gallons (34 000 cubic meters) of butanol per year from sugar beets. DuPont stated a goal of being competitive with oil at $30–$40 per barrel ($0.19-$0.25 per liter) without subsidies, so the price gap with ethanol is narrowing.

  8. Relative density - Wikipedia

    en.wikipedia.org/wiki/Relative_density

    For example, in the brewing industry, the Plato table lists sucrose concentration by weight against true SG, and was originally (20 °C/4 °C) [7] i.e. based on measurements of the density of sucrose solutions made at laboratory temperature (20 °C) but referenced to the density of water at 4 °C which is very close to the temperature at which ...

  9. Is gnocchi healthier than pasta? It depends on 2 things ... - AOL

    www.aol.com/gnocchi-healthier-pasta-depends-2...

    "A 2-ounce serving of gnocchi is going to look like a very small portion compared to 2 ounces of pasta," she tells TODAY.com, meaning you're likely to eat more gnocchi at a meal than pasta.