Heat transfer: Difference between revisions
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:''click [[heat transfer mechanisms|here]] to learn about heat transfer mechanisms.'' | :''click [[heat transfer mechanisms|here]] to learn about heat transfer mechanisms.'' | ||
<onlyinclude>'''Heat transfer''' is the movement or flow of heat energy, often used to describe the dissipation of heat energy from one location to the surrounding environment. Heat transfer is governed with two main properties – temperature, which is the amount of thermal energy available, and the flow of this [[thermal energy]].</onlyinclude> | <onlyinclude>'''Heat transfer''' is the movement or flow of [[heat]] [[energy]], often used to describe the dissipation of heat energy from one location to the surrounding environment. Heat transfer is governed with two main properties – temperature, which is the amount of thermal energy available, and the flow of this [[thermal energy]].</onlyinclude><ref>Hyperphysics, ''Heat Transfer'' [Online], Available: http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/heatra.html</ref> | ||
In terms of [[molecule]]s, objects with higher [[temperature]]s have greater molecular agitation. Therefore heat transfer can also be viewed as the transfer of [[kinetic energy]] from one molecule to another.<ref>“Introduction to the Principles of Heat Transfer.” [Online]. Available: http://www.efunda.com/formulae/heat_transfer/home/overview.cfm.</ref> | In terms of [[molecule]]s, objects with higher [[temperature]]s have greater molecular agitation. Therefore heat transfer can also be viewed as the transfer of [[kinetic energy]] from one molecule to another.<ref>“Introduction to the Principles of Heat Transfer.” [Online]. Available: http://www.efunda.com/formulae/heat_transfer/home/overview.cfm.</ref> | ||
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There are three ways in which heat transfer occurs: [[conduction]], [[convection]] and [[radiation]]. All three will often occur simultaneously. | There are three ways in which heat transfer occurs: [[conduction]], [[convection]] and [[radiation]]. All three will often occur simultaneously. | ||
Below is an amusing video that explains heat transfer in terms of [[ | Below is an amusing video that explains heat transfer in terms of home [[energy efficiency]]: | ||
<html><iframe width="800" height="465" src="//www.youtube.com/embed/lQ0P4aQdj1U" frameborder="0" allowfullscreen></iframe></html> | <html><iframe width="800" height="465" src="//www.youtube.com/embed/lQ0P4aQdj1U" frameborder="0" allowfullscreen></iframe></html> | ||
Revision as of 23:09, 28 August 2015
- click here to learn about heat transfer mechanisms.
Heat transfer is the movement or flow of heat energy, often used to describe the dissipation of heat energy from one location to the surrounding environment. Heat transfer is governed with two main properties – temperature, which is the amount of thermal energy available, and the flow of this thermal energy.[1]
In terms of molecules, objects with higher temperatures have greater molecular agitation. Therefore heat transfer can also be viewed as the transfer of kinetic energy from one molecule to another.[2]
There are three ways in which heat transfer occurs: conduction, convection and radiation. All three will often occur simultaneously.
Below is an amusing video that explains heat transfer in terms of home energy efficiency:
References
- ↑ Hyperphysics, Heat Transfer [Online], Available: http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/heatra.html
- ↑ “Introduction to the Principles of Heat Transfer.” [Online]. Available: http://www.efunda.com/formulae/heat_transfer/home/overview.cfm.