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The following table lists a number of terms that are used in the United States for residential energy audits. AFUE—annual fuel utilization efficiency; BTL—building tightness limit (building tightness) CDH—cooling degree hours (climate) CFL—compact fluorescent light; COP—coefficient of performance; CRI—color rendering index
BRT – below rotary table (used as a datum for depths in a well) BS – bend stiffener; BS – bumper sub; BS – booster station; BSEE – US: Bureau of Safety and Environmental Enforcement [6] (formerly the MMS) BSG – black start generator; BSR – blind shear rams (blowout preventer) BSML – below sea mean level; BS&W – basic sediments ...
Energy & Fuels is a peer-reviewed scientific journal published by the American Chemical Society. It was established in 1987. It was established in 1987. Its publication frequency switched from bimonthly to monthly in 2009.
The incentive factor chosen by DoE for EVs is the same 1 / 0.15 factor already applied in the regulatory treatment of other types of alternative fuel vehicles. [14] When all factors are considered in DoE's formula, the energy efficiency or equivalent fuel economy of electric vehicles increases, being calculated in miles per the ...
The energy content of ethanol is 76,100 BTU/US gal (5.89 kilowatt-hours per litre), compared to 114,100 BTU/US gal (8.83 kWh/L) for gasoline. (see chart above) A flex-fuel vehicle will experience about 76% of the fuel mileage MPG when using E85 (85% ethanol) products as compared to 100% gasoline. Simple calculations of the BTU values of the ...
List of orders of magnitude for energy; Factor (joules) SI prefix Value Item 10 24: yotta-(YJ) 2.31×10 24 J Total energy of the Sudbury impact event [232] 2.69×10 24 J Rotational energy of Venus, which has a sidereal period of (-)243 Earth days. [233] [234] [235] 3.8×10 24 J Radiative heat energy released from the Earth’s surface each year ...
For example, an ideal fuel cell operating at a temperature of 25 °C having gaseous hydrogen and gaseous oxygen as inputs and liquid water as the output could produce a theoretical maximum amount of electrical energy of 237.129 kJ (0.06587 kWh) per gram mol (18.0154 gram) of water produced and would require 48.701 kJ (0.01353 kWh) per gram mol ...
calorie (International Table) cal IT: ≡ 4.1868 J = 4.1868 J: calorie (mean) cal mean: 1 ⁄ 100 of the energy required to warm one gram of air-free water from 0 °C to 100 °C at a pressure of 1 atm ≈ 4.190 02 J: calorie (thermochemical) cal th: ≡ 4.184 J = 4.184 J: Calorie (US; FDA) Cal ≡ 1 kcal = 1000 cal = 4184 J: calorie (3.98 °C ...