Discussing what form of transport is the most fuel efficient and economical.
Part of a series on
Transport
Modes
Armored fighting vehicle
Air
Cable
Human-powered
Land
Water
Animal-powered
Personal rapid transit
pipeline transport
Powered exoskeleton
Rapid transit
Road
Space
Supersonic
Uncrewed vehicle
Vactrain
Topics
Accessibility
Bicycle transportation planning and engineering
Cyclability
Cycling infrastructure
Engineering
Free public transport
Green transport hierarchy
History
Outline
Public / Private
Personal
Public
Sustainable transport
Timeline
Transport divide
Transportation planning
Transport portal
v
t
e
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.[1][2] The energy efficiency is also occasionally known as energy intensity.[3] 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 consumption, fuel consumption being the reciprocal of fuel economy.[2] Nonetheless, fuel consumption is linked with a means of propulsion which uses liquid fuels, whilst energy efficiency is applicable to any sort of propulsion. To avoid said confusion, and to be able to compare the energy efficiency in any type of vehicle, experts tend to measure the energy in the International System of Units, i.e., joules.
Therefore, in the International System of Units, the energy efficiency in transport is measured in terms of metre per joule, or m/J, while the energy consumption in transport is measured in terms of joules per metre, or J/m. The more efficient the vehicle, the more metres it covers with one joule (more efficiency), or the fewer joules it uses to travel over one metre (less consumption). The energy efficiency in transport largely varies by means of transport. Different types of transport range from some hundred kilojoules per kilometre (kJ/km) for a bicycle to tens of megajoules per kilometre (MJ/km) for a helicopter.
Via type of fuel used and rate of fuel consumption, energy efficiency is also often related to operating cost ($/km) and environmental emissions (e.g. CO2/km).
^"Efficiency". Retrieved 18 September 2016.
^ abAssessment of Fuel Economy Technologies for Light-duty Vehicles. The National Academies Press. 2011. doi:10.17226/12924. ISBN 978-0-309-15607-3. Retrieved 18 September 2016.
^"Glossary of energy-related terms". U.S. Department of Energy. Retrieved 20 September 2016.
and 28 Related for: Energy efficiency in transport information
The energyefficiencyintransport is the useful travelled distance, of passengers, goods or any type of load; divided by the total energy put into the...
ammonia production during the Haber process. In the context of transport, fuel economy is the energyefficiency of a particular vehicle, given as a ratio...
Efficient energy use, or energyefficiency, is the process of reducing the amount of energy required to provide products and services. There are many...
energy use Energy efficiencyEnergyefficiencyintransport Electricity generation Energy mix Energy policy Energy transformation "Energy consumption definition...
more important than a focus on a single factor such as energyefficiency. Sustainable transport has many social and economic benefits that can accelerate...
Fastest animals Orders of magnitude (speed) Transport Transportation engineering Energyefficiencyintransport "First person to twice hold three simultaneous...
rebound effects from improved energyefficiency. In addition to reducing the amount needed for a given use, improved efficiency also lowers the relative cost...
and adherents. Transport portal Environmental impact of aviation Energyefficiencyintransport Free public transport Green transport hierarchy IEEE Intelligent...
HEV "Pilot Project MOVELE: An initiative of the IDAE in favour of energyefficiencyintransport" (PDF). Archived from the original (PDF) on 2009-05-30...
The energyefficiency implementation industry pertains to the firms which retrofit or replace inefficient equipment with the goal of reducing energy consumption...
convert energy from one form into another. Energy can be conserved by reducing waste and losses, improving efficiency through technological upgrades, improving...
The fuel economy in aircraft is the measure of the transportenergyefficiency of aircraft. Fuel efficiency is increased with better aerodynamics and by...
The energy cost of transport quantifies the energyefficiency of transporting an animal or vehicle from one place to another. As a dimensionless quantity...
Energyefficiencyin agriculture refers to reducing the amount of energy required to provide agricultural products and services. The European Commission...
stations have raised energy conservation awareness. In 1992 the U.S. Congress, as part of the Energy Policy Act (EPAct) set minimum efficiency levels (see Table...
levels. Energyefficiencyintransport can be measured in L/100 km or miles per gallon (mpg). This can be normalized per vehicle, as in fuel economy in automobiles...
characterize a device's efficiency at each photon energy level. For typical semiconductor photodetectors, QE drops to zero for photons whose energy is below the...
set the reference point for improvements inenergyefficiency. Energyefficiency can improve the existing energy usage and benchmarking of every individual...
car were built. Edison2's The Very Light Car Commuter Cars Energyefficiencyintransport Twentieth Century Motor Car Corporation "Aptera Annual Report"...
energy supply. The new system intends to rely heavily on renewable energy (particularly wind, photovoltaics, and hydroelectricity), energyefficiency...
requirements for energyefficiency since the 1970s (see the history section below), it might be expected that a significant cut in domestic energy use would...
non-motorised transport such as walking and cycling, particularly in cities, can make transport cleaner and healthier. The energyefficiency of cars has...
Electric energy consumption is energy consumption in the form of electrical energy. About a fifth of global energy is consumed as electricity: for residential...
jet Energyefficiencyintransport European Green Deal Environmental effects of aviation in the United Kingdom Environmental effects of transport Flying...
increasing the share of renewable energyin its final energy use to 20%, reduce greenhouse gases by 20% and increase energyefficiency by 20%. After this target...
is to rely heavily on the energy industry and consumers to exercise efficiencyinenergy production, transportation, energy conversion, utilisation and...
transport is capital-intensive and less flexible than road transport, it can carry heavy loads of passengers and cargo with greater energyefficiency...
Global Information
Transport portal