ⓘ Energy in transport ..


Energy efficiency in transport

The energy efficiency in transport is the useful travelled distance, of passengers, goods or any type of load; divided by the total energy put into the transport propulsion means. The energy input might be rendered in several different types depending on the type of propulsion, and normally such energy is presented in liquid fuels, electrical energy or food energy. The energy efficiency is also occasionally known as energy intensity. The inverse of the energy efficiency in transport, is the energy consumption in transport. Energy efficiency in transport is often described in terms of fuel ...



Aerodynamics, from Greek ἀήρ aero + δυναμική, is the study of motion of air, particularly as interaction with a solid object, such as an airplane wing. It is a sub-field of fluid dynamics and gas dynamics, and many aspects of aerodynamics theory are common to these fields. The term aerodynamics is often used synonymously with gas dynamics, the difference being that "gas dynamics" applies to the study of the motion of all gases, and is not limited to air. The formal study of aerodynamics began in the modern sense in the eighteenth century, although observations of fundamental concepts such ...


Bunkers (energy in transport)

In energy statistics, marine bunkers and aviation bunkers as defined by the International Energy Agency are the energy consumption of ships and aircraft. Marine and aviation bunkers are reported separately from international bunkers, which represent consumption of ships and aircraft on international routes. International bunkers are subtracted from the energy supplies of a country to calculate its domestic consumption. It is as if international aviation and international shipping did not belong to any country. They are managed by the International Civil Aviation Organization ICAO and the I ...


Carbon diet

A carbon diet refers to reducing the impact on climate change by reducing greenhouse gas production specifically, CO2 production. In today’s society, humans produce CO2 in every day activities such as driving, heating, deforestation and the burning of fossil fuels such as coal, oil and gas. It has been found that carbon dioxide from the burning of coal, natural gas, and oil for electricity and heat is the largest single source of global greenhouse gas emissions. For years, governments and corporations have been attempting to balance out their emissions by participating in carbon-offsetting ...


Von Karman–Gabrielli diagram

The von Karman–Gabrielli diagram is a diagram which compares the efficiency of transportation methods by plotting specific tractive force, or specific resistance against velocity. It was first used by Theodore von Karman and Giuseppe Gabrielli in their 1950 paper on this subject. The basic idea is that formally, 1 kWh/ 100 km has the dimensional units of a force, a resistance force amounting to 36 N.


ⓘ Energy in transport

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