Woozle: SMW; reference: Wikipedia

2013-06-13T22:55:10Z

SMW; reference: Wikipedia

← Older revision		Revision as of 22:55, 13 June 2013
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	[[category:concepts/physics]][[category:concepts/energy]][[energy density\|Energy density]] refers to the amount of [[energy]] per [[weight]] or [[volume (physics)\|volume]] of a given [[fuel]] (e.g. [[gasoline]]) or energy-storage device (e.g. [[electric battery\|batteries]]).		<hide>
			[[page type::article]]
			[[thing type::concept]]
			[[category:concepts/physics]]
			[[category:concepts/energy]]
			</hide>
			==About==
			[[energy density\|Energy density]] refers to the amount of [[energy]] per [[weight]] or [[volume (physics)\|volume]] of a given [[fuel]] (e.g. [[gasoline]]) or energy-storage device (e.g. [[electric battery\|batteries]]).

	Weight is a significant factor in [[transportation]] energy storage because the more something weighs, the more difficult it is to [[acceleration\|accelerate]] (after a stop), and hence the more of the fuel gets used initially for transportation of the remaining fuel (used later in the trip). This is less important in some applications (e.g. [[freight train]]s, where the weight of the cargo hugely overwhelms the weight of the fuel), but for most transportation it is highly significant in determining a vehicle's maximum possible fuel efficiency. It is especially significant in aviation, where any increase in mass leads to a significant increase in air drag.		Weight is a significant factor in [[transportation]] energy storage because the more something weighs, the more difficult it is to [[acceleration\|accelerate]] (after a stop), and hence the more of the fuel gets used initially for transportation of the remaining fuel (used later in the trip). This is less important in some applications (e.g. [[freight train]]s, where the weight of the cargo hugely overwhelms the weight of the fuel), but for most transportation it is highly significant in determining a vehicle's maximum possible fuel efficiency. It is especially significant in aviation, where any increase in mass leads to a significant increase in air drag.

	Volume is also important, however, in that the storage space for the [[fuel]] should not take up more than a small fraction of the vehicle's available cargo space; a fuel with high energy-per-mass but low mass-per-volume will require a large tank for storage, which is inconvenient and can also weigh a lot and counteract the benefits of the fuel's energy-per-mass.		Volume is also important, however, in that the storage space for the [[fuel]] should not take up more than a small fraction of the vehicle's available cargo space; a fuel with high energy-per-mass but low mass-per-volume will require a large tank for storage, which is inconvenient and can also weigh a lot and counteract the benefits of the fuel's energy-per-mass.
			==Links==
			===Reference===
			* {{wikipedia}}

Woozle: moved from issuepedia

2008-08-22T01:11:48Z

moved from issuepedia

New page

[[category:concepts/physics]][[category:concepts/energy]][[energy density|Energy density]] refers to the amount of [[energy]] per [[weight]] or [[volume (physics)|volume]] of a given [[fuel]] (e.g. [[gasoline]]) or energy-storage device (e.g. [[electric battery|batteries]]).

Weight is a significant factor in [[transportation]] energy storage because the more something weighs, the more difficult it is to [[acceleration|accelerate]] (after a stop), and hence the more of the fuel gets used initially for transportation of the remaining fuel (used later in the trip). This is less important in some applications (e.g. [[freight train]]s, where the weight of the cargo hugely overwhelms the weight of the fuel), but for most transportation it is highly significant in determining a vehicle's maximum possible fuel efficiency. It is especially significant in aviation, where any increase in mass leads to a significant increase in air drag.

Volume is also important, however, in that the storage space for the [[fuel]] should not take up more than a small fraction of the vehicle's available cargo space; a fuel with high energy-per-mass but low mass-per-volume will require a large tank for storage, which is inconvenient and can also weigh a lot and counteract the benefits of the fuel's energy-per-mass.

energy density - Revision history

Woozle: SMW; reference: Wikipedia

Woozle: moved from issuepedia