Energy density - Revision history

Jmdonev: 1 revision imported

2021-12-20T20:21:50Z

1 revision imported

← Older revision	Revision as of 20:21, 20 December 2021
(No difference)

energy>Jmdonev at 19:50, 20 December 2021

2021-12-20T19:50:29Z

← Older revision		Revision as of 19:50, 20 December 2021
Line 6:		Line 6:
	[[Category:Translated to Spanish]]		[[Category:Translated to Spanish]]
	[[es:Densidad energética]]		[[es:Densidad energética]]
	<center>''~~Fuel~~ energy density ~~is discussed on this page~~, for energy density of storage devices like [[battery\|batteries]], click [[energy density of storage devices\|here]].''</center>		<center>''This page discusses fuel energy density, for energy density of storage devices like [[battery\|batteries]], click [[energy density of storage devices\|here]].''</center>

Jmdonev: 1 revision imported

2021-10-18T16:14:41Z

1 revision imported

← Older revision	Revision as of 16:14, 18 October 2021
(No difference)

energy>Luisa at 15:31, 16 October 2021

2021-10-16T15:31:40Z

← Older revision		Revision as of 15:31, 16 October 2021
Line 1:		Line 1:
	[[category:energy storage]]		[[category:energy storage]]
	[[category:fuels]]		[[category:fuels]]
	[[Category:Done 2021-01-31]]		[[Category:Done 2021-10-29]]
	[[Category:Translated to French]]		[[Category:Translated to French]]
	[[fr:Densité énergétique]]		[[fr:Densité énergétique]]
			[[Category:Translated to Spanish]]
			[[es:Densidad energética]]
	<center>''Fuel energy density is discussed on this page, for energy density of storage devices like [[battery\|batteries]], click [[energy density of storage devices\|here]].''</center>		<center>''Fuel energy density is discussed on this page, for energy density of storage devices like [[battery\|batteries]], click [[energy density of storage devices\|here]].''</center>


	[[File:Log scale.png\|framed\|Figure 1. An XKCD comic showing the comparative energy density of [[Uranium]].<ref>XKCD. ''Log Scale'' [Online], Available: http://xkcd.com/1162/</ref>]]		[[File:Log scale.png\|framed\|Figure 1. An XKCD comic showing the comparative energy density of [[Uranium]].<ref>XKCD. ''Log Scale'' [Online], Available: http://xkcd.com/1162/</ref>]]

Jmdonev at 19:19, 15 October 2021

2021-10-15T19:19:55Z

← Older revision		Revision as of 19:19, 15 October 2021
Line 4:		Line 4:
	[[Category:Translated to French]]		[[Category:Translated to French]]
	[[fr:Densité énergétique]]		[[fr:Densité énergétique]]
	~~[[Category:Jason skim]]~~
	~~'''Jason, the image and data in the text showed the Uranium distance Vancouver to Saskatoon, but we stated it was Kelowna to Winnipeg. It's good now. - Luisa~~
	<center>''Fuel energy density is discussed on this page, for energy density of storage devices like [[battery\|batteries]], click [[energy density of storage devices\|here]].''</center>		<center>''Fuel energy density is discussed on this page, for energy density of storage devices like [[battery\|batteries]], click [[energy density of storage devices\|here]].''</center>

Jmdonev: 1 revision imported

2021-10-15T19:13:40Z

1 revision imported

← Older revision	Revision as of 19:13, 15 October 2021
(No difference)

energy>Luisa at 04:02, 9 October 2021

2021-10-09T04:02:02Z

← Older revision		Revision as of 04:02, 9 October 2021
Line 4:		Line 4:
	[[Category:Translated to French]]		[[Category:Translated to French]]
	[[fr:Densité énergétique]]		[[fr:Densité énergétique]]
			[[Category:Jason skim]]
			'''Jason, the image and data in the text showed the Uranium distance Vancouver to Saskatoon, but we stated it was Kelowna to Winnipeg. It's good now. - Luisa
	<center>''Fuel energy density is discussed on this page, for energy density of storage devices like [[battery\|batteries]], click [[energy density of storage devices\|here]].''</center>		<center>''Fuel energy density is discussed on this page, for energy density of storage devices like [[battery\|batteries]], click [[energy density of storage devices\|here]].''</center>

Line 53:		Line 55:
	==How far can you go?==		==How far can you go?==

	Energy sources do not give up their energy in the same ways, but assuming they could, how far would each move a vehicle? To find out, coal can be used as a base-line, if the amount of energy in a particular mass of coal equal to 10 [[meter]]s - the length of a school bus. This makes the energy available in that same mass of uranium equal to the distance between ~~Kelowna~~, British Columbia to ~~Winnipeg~~, ~~Manitoba~~ (Figure 2). Below is a list of other [[fuel]]s compared to coal to figure out the energy per distance to compare other [[fuel]]s to coal.		Energy sources do not give up their energy in the same ways, but assuming they could, how far would each move a vehicle? To find out, coal can be used as a base-line, if the amount of energy in a particular mass of coal equal to 10 [[meter]]s - the length of a school bus. This makes the energy available in that same mass of uranium equal to the distance between Vancouver, British Columbia to Saskatoon, Saskatchewan(Figure 2). Below is a list of other [[fuel]]s compared to coal to figure out the energy per distance to compare other [[fuel]]s to coal.
	*'''Wood''' - 7 meters, about the width of a two car garage		*'''Wood''' - 7 meters, about the width of a two car garage
	*'''Coal''' - 10 meters, about the length of a school bus		*'''Coal''' - 10 meters, about the length of a school bus

Jmdonev: 1 revision imported

2021-09-27T00:03:12Z

1 revision imported

← Older revision	Revision as of 00:03, 27 September 2021
(No difference)

energy>Ethan.boechler at 21:03, 10 September 2021

2021-09-10T21:03:56Z

← Older revision		Revision as of 21:03, 10 September 2021
Line 1:		Line 1:
	[[category:energy storage]]		[[category:energy storage]]
	[[category:fuels]]		[[category:fuels]]
	[[Category:Done ~~2018~~-06-15]]		[[Category:Done 2021-01-31]]
			[[Category:Translated to French]]
			[[fr:Densité énergétique]]
	<center>''Fuel energy density is discussed on this page, for energy density of storage devices like [[battery\|batteries]], click [[energy density of storage devices\|here]].''</center>		<center>''Fuel energy density is discussed on this page, for energy density of storage devices like [[battery\|batteries]], click [[energy density of storage devices\|here]].''</center>

	[[File:Log scale.png\|framed\|Figure 1. An XKCD comic showing the comparative energy density of [[Uranium]].<ref>XKCD. ''Log Scale'' [Online], Available: http://xkcd.com/1162/</ref>]]		[[File:Log scale.png\|framed\|Figure 1. An XKCD comic showing the comparative energy density of [[Uranium]].<ref>XKCD. ''Log Scale'' [Online], Available: http://xkcd.com/1162/</ref>]]

	<onlyinclude>'''Energy density''' is the amount of [[energy]] that can be stored in a given ~~[[mass]] of a~~ substance or ~~system~~.<ref name = r1>C. Dillon. (2009, October). ''How Far Will Energy Go? - An Energy Density Comparison'' [Online]. Available: http://www.cleanenergyinsight.org/interesting/how-far-will-your-energy-go-an-energy-density-comparison/</ref><ref name = r2>A. Golnik and G. Elert. (2003). ''Energy Density of Gasoline'' [Online]. Available: http://hypertextbook.com/facts/2003/ArthurGolnik.shtml.</ref> The higher the energy density of a system or material, the greater the amount of energy stored ~~in its mass~~.</onlyinclude><ref name = r3>Uni. South Carolina. (2003, October). ''Description of Energy and Power'' [Online]. Available: http://www.che.sc.edu/centers/RCS/desc_e_and_p.htm </ref> ~~Energy can be stored in many different types of substances and systems.~~		<onlyinclude>'''Energy density''' is the amount of [[energy]] that can be stored in a given system, substance, or region of space.<ref name = r1>C. Dillon. (2009, October). ''How Far Will Energy Go? - An Energy Density Comparison'' [Online]. Available: http://www.cleanenergyinsight.org/interesting/how-far-will-your-energy-go-an-energy-density-comparison/</ref><ref name = r2>A. Golnik and G. Elert. (2003). ''Energy Density of Gasoline'' [Online]. Available: http://hypertextbook.com/facts/2003/ArthurGolnik.shtml.</ref> Energy density can be measured in [[energy]] per [[volume]] or per [[mass]]. The higher the energy density of a system or material, the greater the amount of energy it has stored.</onlyinclude><ref name = r3>Uni. South Carolina. (2003, October). ''Description of Energy and Power'' [Online]. Available: http://www.che.sc.edu/centers/RCS/desc_e_and_p.htm </ref>

	A material can release energy in four types of reactions. These reactions are [[nuclear energy\|nuclear]], [[chemical reaction\|chemical]], [[battery\|electrochemical]] and [[electromagnetic force\|electrical]].<ref name = r4>B. E. Layton, "A comparison of Energy Densities of Prevalent Energy Sources in Units of Joules Per Cubic Meter," ''Int. J. Green Energy'', vol. 5, no. 6, pp. 438-455, Dec. 2008.</ref> When calculating the amount of energy in a system most often only ''useful'' or ''extractable'' energy is measured. In scientific equations, energy density is often denoted by ''U''.<ref>E. W. Weisstein. (2007). ''Energy Density -- from Eric Weisstein’s World of Physics'' <nowiki>[Online]</nowiki>. Available: http://scienceworld.wolfram.com/physics/EnergyDensity.html</ref>		A material can release energy in four types of reactions. These reactions are [[nuclear energy\|nuclear]], [[chemical reaction\|chemical]], [[battery\|electrochemical]] and [[electromagnetic force\|electrical]].<ref name = r4>B. E. Layton, "A comparison of Energy Densities of Prevalent Energy Sources in Units of Joules Per Cubic Meter," ''Int. J. Green Energy'', vol. 5, no. 6, pp. 438-455, Dec. 2008.</ref> When calculating the amount of energy in a system most often only ''useful'' or ''extractable'' energy is measured. In scientific equations, energy density is often denoted by ''U''.<ref>E. W. Weisstein. (2007). ''Energy Density -- from Eric Weisstein’s World of Physics'' <nowiki>[Online]</nowiki>. Available: http://scienceworld.wolfram.com/physics/EnergyDensity.html</ref>
Line 13:		Line 15:
	*'''Volumetric energy density''' - how much energy a system contains in comparison to its [[volume]]; typically expressed in [[watt-hour]]s per [[liter]] (Wh/L) or [[Megajoule]]s per liter (MJ/L).<ref name = r6/>		*'''Volumetric energy density''' - how much energy a system contains in comparison to its [[volume]]; typically expressed in [[watt-hour]]s per [[liter]] (Wh/L) or [[Megajoule]]s per liter (MJ/L).<ref name = r6/>

	*'''Gravimetric energy density''' ~~('''Specific energy''')~~ - how much energy a system contains in comparison to its mass; typically expressed in watt-hours per [[kilogram]] (Wh/kg), or Megajoules per kilogram (MJ/kg).<ref name = r6>C. Simpson, "Characteristics of Rechargeable Batteries," ''National Semiconductor''. Texas Instruments Inc., Dallas, 2011.</ref>		*'''[[Gravimetric energy density]]''' - how much energy a system contains in comparison to its mass; typically expressed in watt-hours per [[kilogram]] (Wh/kg), or Megajoules per kilogram (MJ/kg).<ref name = r6>C. Simpson, "Characteristics of Rechargeable Batteries," ''National Semiconductor''. Texas Instruments Inc., Dallas, 2011.</ref> Gravimetric energy density can also be referred to as [[specific energy]].

	Having a high energy density does not give information on how quickly this energy can be used. This knowledge is contained in a substance's '''[[power density]]''', which describes the ''rate'' at which its energy can be put out. Typically having a high energy density goes along with a low power density. Visit [[energy density vs power density]] for more information and examples.		Having a high energy density does not give information on how quickly this energy can be used. This knowledge is contained in a substance's '''[[power density]]''', which describes the ''rate'' at which its energy can be put out. Typically having a high energy density goes along with a low power density. Visit [[energy density vs power density]] for more information and examples.
Line 60:		Line 62:

	To start with a different set of numbers, one kilogram of [[crude oil]] allows a car to drive ~20 km. [[Petroleum product]]s, like [[gasoline]] are used because they are energy dense. A kilogram of nuclear fuel, like <sup>235</sup>Uranium, would take a car 1.77 ''million'' km. How far is that? That's a trip from the Earth, to the moon, and back. Twice.<ref>Wolfram Alpha, entry: 1772727273 m</ref> Nuclear fuels are incredibly energy-dense.		To start with a different set of numbers, one kilogram of [[crude oil]] allows a car to drive ~20 km. [[Petroleum product]]s, like [[gasoline]] are used because they are energy dense. A kilogram of nuclear fuel, like <sup>235</sup>Uranium, would take a car 1.77 ''million'' km. How far is that? That's a trip from the Earth, to the moon, and back. Twice.<ref>Wolfram Alpha, entry: 1772727273 m</ref> Nuclear fuels are incredibly energy-dense.

			==Further Reading==
			*[[Specific energy]]
			*[[Gravimetric energy density]]
			*[[Power density]]
			*[[Energy density vs power density]]

	==References==		==References==

Jmdonev: 1 revision imported

2018-06-25T14:30:33Z

1 revision imported

← Older revision	Revision as of 14:30, 25 June 2018
(No difference)