Whois & Analysis for fuelly.com

The fuel economy of an automobile is the fuel efficiency relationship between the distance traveled and the amount of fuel consumed by the vehicle.

Consumption can be expressed in terms of volume of fuel to travel a distance, or the distance travelled per unit volume of fuel consumed.

Since fuel consumption of vehicles is a significant factor in air pollution, and since importation of motor fuel can be a large part of a nation's foreign trade, many countries impose requirements for fuel economy.

Different measurement cycles are used to approximate the actual performance of the vehicle.

The energy in fuel is required to overcome various losses (wind resistance, tire drag, and others) in propelling the vehicle, and in providing power to vehicle systems such as ignition or air conditioning.

Various measures can be taken to reduce losses at each of the conversions between chemical energy in fuel and kinetic energy of the vehicle.

Driver behavior can affect fuel economy; maneuvers such as sudden acceleration and heavy braking waste energy.

Fuel efficiency is a form of thermal efficiency, meaning the efficiency of a process that converts chemical potential energy contained in a carrier fuel into kinetic energy or work.

Overall fuel efficiency may vary per device, which in turn may vary per application fuel efficiency, especially fossil fuel power plants or industries dealing with combustion, such as ammonia production during the Haber process.

A fuel is any material that can be made to react with other substances so that it releases chemical or nuclear energy as heat or to be used for work.

The concept was originally applied solely to those materials capable of releasing chemical energy but has since also been applied to other sources of heat energy such as nuclear energy (via nuclear fission and nuclear fusion).

The track on a railway or railroad, also known as the permanent way, is the structure consisting of the rails, fasteners, railroad ties (sleepers, British English) and ballast (or slab track), plus the underlying subgrade.

It enables trains to move by providing a dependable surface for their wheels to roll upon.

For clarity it is often referred to as railway track (British English and UIC terminology) or railroad track (predominantly in the United States).

Tracks where electric trains or electric trams run are equipped with an electrification system such as an overhead electrical power line or an additional electrified rail.