Evaluating Automobile Fuel Essay

The alternatives to liquid fuels are compressed gases and electric power, however, both are viewed as inferior by the automotive industry. The gases are inferior in call of energy content per unit volume. Electric power may be stored on board a vehicle in a battery or (for a short time) in capacitors. However, batteries are regarded in spite of appearance the automotive industry as substandard compared to liquid fuels in terms of energy stored by unit weight and volume.Furthermore their cost is high, and the patch up of some battery types involves large quantities of scarce or environmentally-threatening materials including cadmium, lead, lithium, nickel, sodium, sulphur and zinc. fit in to the already mentioned just-auto report entitled The future of road vehicle fuels forecasts to 2020 (January 2008), the internationalistic Energy Agencys World Energy Outlook 2007 prove that around 230m barrels of oil equivalent are required to proper global demand each day.Of this total, liquids account for the largest share of the 230m barrels (37%) followed by coal (23%) and natural gas (21%), leaving a 19% theatrical role from nuclear and sustainable sources. Of the liquids, however, transferral use accounts for more than half (51%), with the ending going to industry (32%), residential and commercial (11%) and power generation (6%).The residential and commercial share is mainly accounted for by oil-fired central heating, and the diminished power generation share by gas turbines running to proper peak loads. It follows that the transport sector share of the world energy mart is just over half of 37%, in another(prenominal) terminology some 19% or just under one-fifth of the total. It should to a fault be borne in mind that the transport sector is itself divided into light vehicles (privately-owned passenger vehicles and light commercial vehicles), industrial vehicles, and other transport applications (aircraft, ships and diesel engine railway engines).T he light-duty and heavy-duty sub-sectors take about 40% each, and the other applications some 20%. The search for improved efficiency in the transport sector must therefore embrace both light-duty and heavy-duty road vehicles.