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To calculate the actual efficiency of an engine requires the energy density of the fuel being used. Different fuels have different energy densities defined by the fuel's heating value. The lower heating value (LHV) is used for internal-combustion-engine-efficiency calculations because the heat at temperatures below 150 °C (300 °F) cannot be ...
A consumption map or efficiency map [1] is a chart that displays the brake-specific fuel consumption of an internal combustion engine at a given rotational speed and mean effective pressure, in grams per kilowatt-hour (g/kWh). The map contains each possible condition combining rotational speed and mean effective pressure.
The main issue with safety and hypermiling is the lack of temperature in the brake system. This is extremely relevant in older vehicles in the winter. Disc brake systems gain efficiency with higher temps. Emergency braking with freezing brakes at highway speeds results in a number of issues from increased stopping distance to pulling to one side.
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 petroleum-equivalency factor of 82,049 Wh/gal rather than miles per the usual gasoline gallon equivalent of 33,705 Wh/gallon, for the purposes of CAFE credits to manufacturers.
When deciding how to deduct mileage from your taxes, you have two options: the standard mileage rate and the actual expense method. Note that you can only choose one of these. Standard Mileage Rate
On Dec. 29, the agency announced a bump in the optional standard mileage rate starting Jan. 1, 2023 — which will now be 65.5 cents per mile driven. Taxpayers can use the new rate to calculate ...
The law authorizes the Oregon Department of Transportation (ODOT) to set up a mileage collection system for 5,000 volunteer motorists beginning July 1, 2015. [18] ODOT may assess a charge of 1.5 cents per mile for up to 5,000 volunteer cars and light commercial vehicles and issue a gas tax refund to those participants. [3]
The Internal Revenue Service announced an increase in the standard mileage rates when people use their vehicles for business use. The standard mileage deduction rose to 67 cents per mile, up 1.5 ...