A-+fuel+efficient+cars

=What are some technologies & features that are making new cars more fuel efficient? =

Let’s first start off by defining what being “ // fuel efficient //  ” exactly means. à Fuel efficiency is a form of thermal efficiency, which means the efficiency of a process that converts energy potential contained in a carrier fuel into kinetic energy or work.

What is // gasoline //  ? à It consists mostly of aliphatic hydrocarbons obtained by the fractional distillation of petroleum enhanced with iso-octane or the aromatic hydrocarbons toluene and to increase its octane rating.

//Features making cars more fuel efficient// o By using low-rolling resistance tires. à Low-rolling resistance tires are tires which are designed to minimize the energy wasted as heat as the tire rolls down the road.

o By using the idle-stop system. à Idle-stop system, also commonly known as a start-stop system is a technology that can shut down the engine each time the vehicle comes to a stop.

o By using Ford’s EcoBoost engine. à Ford’s EcoBoost engine is a new technology that will improve fuel efficiency by combining advanced injection technology and turbo charging with a gasoline engine. This results in an engine that can deliver up to 20 percent better fuel economy and 15 percent lower CO2 emissions.

o By using fuel additives (Shell Nitrogen Enriched Gasoline) à Shell uses nitrogen as a fuel additive (-> adding something to something else to improve it) which makes the valves much cleaner by cleaning up gunk that lower quality gasoline leaves behind. This cleaning system is so advanced that it works under most circumstances, especially since today’s latest fuel-efficient engines have tough conditions with higher pressures and temperatures, which usually result in reducing the effectiveness of fuel additives.

o By using hybrids. à A hybrid vehicle uses two or more distinct power sources to move the vehicle. A hybrid car can also recover energy and store it in the battery, because whenever the brake pedal is stepped on, energy is being removed from the car, but a hybrid can capture some of the energy and store it in the in the battery to use it later. The shape of hybrids are much more aerodynamic which results in a decrease of an aerodynamic drag, which is the force a car uses when moving quickly, pushing through the air. Hybrid cars also use lightweight materials which reduce the overall amount of energy used, for example when a car is going uphill and it also reduces the overall weight of the car which results in increased mileage.

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There is also a video on hybrid vehicles if you scroll down the link below: []

Sources:

Nice, K. (2010) //How Hybrid Cars Work.// How Stuff Works. Retrieved October 18, 2010, from < [] >

(2010) //Low-rolling Resistance Tires.// Wikimedia Foundation Inc. Retrieved October 18, 2010 from < [] >

(2010) //Fuel Efficiency: Fuel Efficient Cars & Vehicles, Gas Mileage Info.// Alberta Motor Association. Retrieved October 18, 2010 from <[]>

(2010) //Shell Nitrogen Enriched Gasolines.// Shell Canada Limited. Retrieved October 18, 2010, from < [] >

Fuller, J. (2010) //How Idle Systems Works.// How Stuff Works. Retrieved October 18, 2010, from < [] >