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Pipeline-quality gas has an energy value slightly higher than that of pure methane, which has 10.47 kilowatt-hours per cubic metre (1,012 British thermal units per cubic foot). Natural gas as it comes out of the ground is most often predominantly methane, but may have a wide range of energy values, from much lower (due to dilution by non ...
The integration of a flux over an area gives the volumetric flow rate. The SI unit is cubic metres per second (m 3 /s). Another unit used is standard cubic centimetres per minute (SCCM). In US customary units and imperial units, volumetric flow rate is often expressed as cubic feet per second (ft 3 /s) or gallons per minute (either US or ...
The United States federal excise tax on gasoline is 18.4 cents per gallon and 24.4 cents per gallon for diesel fuel. [ 1 ][ 2 ] Proceeds from the tax partly support the Highway Trust Fund. The federal tax was last raised on October 1, 1993, and is not indexed to inflation, which increased 111% from Oct. 1993 until Dec. 2023.
The profit margin on gas was about 6.7% in 2019, so at current levels, it’s close to 12%. At the current average price of $3.64 per gallon, about 43 cents per gallon goes to the retailer as ...
Fuel economy in aircraft. Between 1950 and 2018, efficiency per passenger grew from 0.4 to 8.2 RPK per kg of CO₂. [1] The fuel economy in aircraft is the measure of the transport energy efficiency of aircraft. Fuel efficiency is increased with better aerodynamics and by reducing weight, and with improved engine brake-specific fuel consumption ...
It is the rate of fuel consumption divided by the power produced. In traditional units, it measures fuel consumption in pounds per hour divided by the brake horsepower , lb/(hp⋅h); in SI units , this corresponds to the inverse of the units of specific energy , kg/J = s 2 /m 2 .
Marcellus natural gas trend. The Marcellus natural gas trend is a large geographic area of prolific shale gas extraction from the Marcellus Shale or Marcellus Formation, of Devonian age, in the eastern United States. [ 2 ] The shale play encompasses 104,000 square miles and stretches across Pennsylvania and West Virginia, and into eastern Ohio ...
Washington state’s average cost of gas per gallon is now $5.12 — a 3-cent increase from September’s average of $5.09. Last September, gas averaged $5.32 a gallon in Washington state, 20 ...