Heat exchanger - Revision history

Jmdonev: 1 revision imported

2018-07-21T01:13:11Z

1 revision imported

← Older revision	Revision as of 01:13, 21 July 2018
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Jmdonev at 01:08, 21 July 2018

2018-07-21T01:08:24Z

← Older revision		Revision as of 01:08, 21 July 2018
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	[[Category:Done ~~2015~~-06-11]]		[[Category:Done 2018-07-20]]
	[[File:heatexchngar.png\|350px\|thumb\|Figure 1. A hot fluid (red) flows through a tube inside a chamber containing a cooler fluid. It exchanges heat to the cooler fluid and in turn exits cooler than it entered.<ref>''Made internally by a member of the Energy Education team''. Adapted from Explain that stuff. Available: http://www.explainthatstuff.com/how-heat-exchangers-work.html</ref>]]		[[File:heatexchngar.png\|350px\|thumb\|Figure 1. A hot fluid (red) flows through a tube inside a chamber containing a cooler fluid. It exchanges heat to the cooler fluid and in turn exits cooler than it entered.<ref>''Made internally by a member of the Energy Education team''. Adapted from Explain that stuff. Available: http://www.explainthatstuff.com/how-heat-exchangers-work.html</ref>]]
			<onlyinclude>'''Heat exchangers''' are systems that use a [[fluid]] to absorb [[heat]] from a hotter outside source without the fluid and hot source mixing together. Therefore, the fluid that entered hot, leaves cold and the initially cold fluid leaves hot. For example, [[water]] can be heated while inside a metal pipe within a [[furnace]] or [[boiler]].</onlyinclude> There could ways to heat water (and cool a heat source)—like throwing water onto a fire. Although the water is now hot and fire is now cooler, they are not useful anymore since the fire is put out and the water is lost as vapour. Avoiding this mess is the essence of a heat exchanger; the fluid never has to come in direct contact with the heat source.<ref name=ets>Woodford, Chris. (May 29, 2015). ''Heat exchangers'' [Online]. Available: http://www.explainthatstuff.com/how-heat-exchangers-work.html. [Accessed May 29, 2015]</ref> Heat exchangers with larger surface areas are more desirable, as they allow for more thermal contact and can therefore exchange heat faster.
	<onlyinclude>'''Heat exchangers''' are systems that use a [[fluid]] to absorb [[heat]] from a hotter outside source without the fluid and hot source mixing together. For example, [[water]] can be heated while inside a metal pipe within a [[furnace]] or [[boiler]].</onlyinclude> ~~While~~ water ~~could be heated by~~ throwing ~~it on~~ the [[fire]], the fire ~~could go~~ out, and the water ~~wouldn't be of very much use~~. Avoiding this is the essence of a heat exchanger; the fluid never has to come in direct contact with the heat source.<ref name=ets>Woodford, Chris. (May 29, 2015). ''Heat exchangers'' [Online]. Available: http://www.explainthatstuff.com/how-heat-exchangers-work.html. [Accessed May 29, 2015]</ref> Heat exchangers with larger surface areas are more desirable, as they allow for more thermal contact and can therefore exchange heat faster.

	[[Power plant]]s use heat exchangers to collect heat from hot waste [[gas]]es to get power. [[Refrigerator]]s use heat exchangers to dump the heat from inside the fridge to the room that it's sitting in. Vehicles use heat exchangers to dump [[waste heat]] to the [[atmosphere]] so they don't overheat.<ref name=ets/> For instance, a car radiator is a type of heat exchanger. Coolant that takes heat from the [[engine]] flows through the radiator which has metal fins that open into the air. As the car drives along, air blowing through the front grille cools this coolant and the waste heat can flow into the passenger compartment, providing heat to the car.		[[Power plant]]s use heat exchangers to collect heat from hot waste [[gas]]es to get power. [[Refrigerator]]s use heat exchangers to dump the heat from inside the fridge to the room that it's sitting in. Vehicles use heat exchangers to dump [[waste heat]] to the [[atmosphere]] so they don't overheat.<ref name=ets/> For instance, a car radiator is a type of heat exchanger. Coolant that takes heat from the [[engine]] flows through the radiator which has metal fins that open into the air. As the car drives along, air blowing through the front grille cools this coolant and the waste heat can flow into the passenger compartment, providing heat to the car.
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	File: pool-heat-exchanger.jpg\|Swimming pool heat exchanger.<ref>Hotspot Energy, ''Pool Heating System'' [Online], Available: http://www.hotspotenergy.com/titanium-pool-heat-exchangers/</ref>		File: pool-heat-exchanger.jpg\|Swimming pool heat exchanger.<ref>Hotspot Energy, ''Pool Heating System'' [Online], Available: http://www.hotspotenergy.com/titanium-pool-heat-exchangers/</ref>
	</gallery>		</gallery>

			==For Further Reading==
			*[[Refrigerator]]
			*[[Power plant]]
			*[[Boiler]]
			*[[Fluid]]
			*[[Heat]]
			*Or explore a [[Special:Random\|random page]]


	==References==		==References==
	{{reflist}}		{{reflist}}
	[[Category:Uploaded]]		[[Category:Uploaded]]

J.williams: 1 revision imported

2015-08-26T21:30:49Z

1 revision imported

← Older revision	Revision as of 21:30, 26 August 2015
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J.williams at 16:43, 12 August 2015

2015-08-12T16:43:04Z

New page

[[Category:Done 2015-06-11]]
[[File:heatexchngar.png|350px|thumb|Figure 1. A hot fluid (red) flows through a tube inside a chamber containing a cooler fluid. It exchanges heat to the cooler fluid and in turn exits cooler than it entered.<ref>''Made internally by a member of the Energy Education team''. Adapted from Explain that stuff. Available: http://www.explainthatstuff.com/how-heat-exchangers-work.html</ref>]]

<onlyinclude>'''Heat exchangers''' are systems that use a [[fluid]] to absorb [[heat]] from a hotter outside source without the fluid and hot source mixing together. For example, [[water]] can be heated while inside a metal pipe within a [[furnace]] or [[boiler]].</onlyinclude> While water could be heated by throwing it on the [[fire]], the fire could go out, and the water wouldn't be of very much use. Avoiding this is the essence of a heat exchanger; the fluid never has to come in direct contact with the heat source.<ref name=ets>Woodford, Chris. (May 29, 2015). ''Heat exchangers'' [Online]. Available: http://www.explainthatstuff.com/how-heat-exchangers-work.html. [Accessed May 29, 2015]</ref> Heat exchangers with larger surface areas are more desirable, as they allow for more thermal contact and can therefore exchange heat faster.

[[Power plant]]s use heat exchangers to collect heat from hot waste [[gas]]es to get power. [[Refrigerator]]s use heat exchangers to dump the heat from inside the fridge to the room that it's sitting in. Vehicles use heat exchangers to dump [[waste heat]] to the [[atmosphere]] so they don't overheat.<ref name=ets/> For instance, a car radiator is a type of heat exchanger. Coolant that takes heat from the [[engine]] flows through the radiator which has metal fins that open into the air. As the car drives along, air blowing through the front grille cools this coolant and the waste heat can flow into the passenger compartment, providing heat to the car.

[[Efficiency|Efficiencies]] of power plants can be increased with heat exchangers because the exhaust gases still have some useful [[energy]] in the form of heat. This heat is absorbed by heat exchangers in the smoke stack and brought somewhere where it can contribute usefully, such as to pre-heat the fuel going into the boiler, or to heat a nearby office.<ref name=ets/>

<gallery mode="packed" caption="Heat Exchangers" heights=300px>
File:fridgehex.JPG|Refrigerator heat exchanger<ref>Wikimedia Commons [Online], Available: http://upload.wikimedia.org/wikipedia/commons/f/f0/Ledni%C4%8Dka_Zanussi_ZRA_319_SW,_celkov%C3%BD_pohled_na_zadn%C3%AD_%C4%8D%C3%A1st.JPG</ref>
File:comphex.jpg|Computer heat exchanger and fan.<ref>Wikimedia Commons [Online], Available: http://upload.wikimedia.org/wikipedia/commons/5/5f/Heatsink_with_heat_pipes.jpg</ref>
File: pool-heat-exchanger.jpg|Swimming pool heat exchanger.<ref>Hotspot Energy, ''Pool Heating System'' [Online], Available: http://www.hotspotenergy.com/titanium-pool-heat-exchangers/</ref>
</gallery>

==References==
{{reflist}}
[[Category:Uploaded]]