Thermal power - Revision history

Jmdonev: 1 revision imported

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energy>Jmdonev at 22:24, 10 April 2020

2020-04-10T22:24:48Z

← Older revision		Revision as of 22:24, 10 April 2020
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	[[Category:371 topics]]		[[Category:371 topics]]
	[[Category:4D Heat Engines]]		[[Category:4D Heat Engines]]
	[[Category:Done ~~2018~~-07-20]]		[[Category:Done 2020-02-29]]
	[[File:boilerflame.jpg\|350px\|thumb\|Figure 1. Thermal power is supplied by a fuel to a boiler.<ref>Shehal Joseph via Flickr [Online], Available: https://www.flickr.com/photos/shehal/1167585170</ref>]]		[[File:boilerflame.jpg\|350px\|thumb\|Figure 1. Thermal power is supplied by a fuel to a boiler.<ref>Shehal Joseph via Flickr [Online], Available: https://www.flickr.com/photos/shehal/1167585170</ref>]]

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	For power plants, the thermal power input is measured in [[megawatts thermal]] (MWt). However, the output, which is usually supplying [[electric power to the grid]] is measured in [[megawatts electric]] (MWe).<ref>R. Wolfson, "Energy and Heat," in ''Energy, Environment and Climate,'' 2nd ed. New York, U.S.A.: Norton, 2012, pp. 86-87</ref> Since not all of the input heat can be converted entirely into electricity (see [[Carnot efficiency]]), the MWt value will always be larger the the MWe value. The comparison gives a power plant its [[thermal efficiency]], which is a measure of how much useful work it can achieve for the amount of fuel it had to burn. Most older power plants are around 33% efficiency,<ref>EIA, ''What is the efficiency of different types of power plants?'' [Online], Available: http://www.eia.gov/tools/faqs/faq.cfm?id=107&t=3</ref> so the input thermal power is 3x more than the output electrical power.		For power plants, the thermal power input is measured in [[megawatts thermal]] (MWt). However, the output, which is usually supplying [[electric power to the grid]] is measured in [[megawatts electric]] (MWe).<ref>R. Wolfson, "Energy and Heat," in ''Energy, Environment and Climate,'' 2nd ed. New York, U.S.A.: Norton, 2012, pp. 86-87</ref> Since not all of the input heat can be converted entirely into electricity (see [[Carnot efficiency]]), the MWt value will always be larger the the MWe value. The comparison gives a power plant its [[thermal efficiency]], which is a measure of how much useful work it can achieve for the amount of fuel it had to burn. Most older power plants are around 33% efficiency,<ref>EIA, ''What is the efficiency of different types of power plants?'' [Online], Available: http://www.eia.gov/tools/faqs/faq.cfm?id=107&t=3</ref> so the input thermal power is 3x more than the output electrical power.

	Not all power plants require thermal power in order to generate electricity. Plants like [[hydroelectric facilities]], [[wind turbine]]s, or [[photovoltaic cell]]s use other forms of power from different ~~energy~~ [[flow]]s to create electricity. Therefore, thermal power is only used for [[thermodynamics\|thermodynamic]] systems. Although the thermodynamic limits do not apply for these plants, such as the [[second law of thermodynamics]] and Carnot efficiency, they do have other factors that limit their [[efficiency]].		Not all power plants require thermal power in order to generate electricity. Plants like [[hydroelectric facilities]], [[wind turbine]]s, or [[photovoltaic cell]]s use other forms of power from different [[primary energy flow]]s to create electricity. Therefore, thermal power is only used for [[thermodynamics\|thermodynamic]] systems. Although the thermodynamic limits do not apply for these plants, such as the [[second law of thermodynamics]] and Carnot efficiency, they do have other factors that limit their [[efficiency]].

	==For Further Reading==		==For Further Reading==

Jmdonev: 1 revision imported

2018-07-21T01:13:05Z

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Jmdonev at 17:06, 19 July 2018

2018-07-19T17:06:54Z

← Older revision		Revision as of 17:06, 19 July 2018
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	[[Category:371 topics]]		[[Category:371 topics]]
	[[Category:4D Heat Engines]]		[[Category:4D Heat Engines]]
	[[Category:Done ~~2015~~-06-11]]		[[Category:Done 2018-07-20]]
	[[File:boilerflame.jpg\|350px\|thumb\|Figure 1. Thermal power is supplied by a fuel to a boiler.<ref>Shehal Joseph via Flickr [Online], Available: https://www.flickr.com/photos/shehal/1167585170</ref>]]		[[File:boilerflame.jpg\|350px\|thumb\|Figure 1. Thermal power is supplied by a fuel to a boiler.<ref>Shehal Joseph via Flickr [Online], Available: https://www.flickr.com/photos/shehal/1167585170</ref>]]

	<onlyinclude>'''Thermal power''' ~~is a measure of [[power]] given by the exchange of~~ [[heat]] ~~in a system over time~~.</onlyinclude> ~~Thermal power is supplied by~~ [[~~fuel~~]] ~~to a system~~, ~~such as a~~ [[~~power plant~~]] or [[heat engine]]~~, most often with the goal of achieving~~ useful [[work]]. ~~Thermal~~ power ~~can be a measure of input, such as~~ the heat input to a [[boiler]] in a power plant in order to generate [[electricity]], or it can be a measure of the ~~output, such~~ as the [[radiant heat]] given off by the Sun.		<onlyinclude>'''Thermal power''' describes how fast [[heat]] is produced.</onlyinclude> For most energy systems such as a [[gasoline engine]], thermal power is how fast [[fuel]] is converted into heat. These [[heat engine]]s create this heat to achieve useful [[work]]. Most commonly thermal power refers to the heat input to a [[boiler]] in a power plant in order to generate [[electricity]]. In other contexts, it can be a measure of the output—such as the [[radiant heat]] given off by the Sun.</onlyinclude>

	For power plants, the thermal power input is measured in [[megawatts thermal]] (MWt), which is ~~to be distinguished from the~~ [[electric power to the grid]] ~~that is output that~~ is measured in [[megawatts electric]] (MWe).<ref>R. Wolfson, "Energy and Heat," in ''Energy, Environment and Climate,'' 2nd ed. New York, U.S.A.: Norton, 2012, pp. 86-87</ref> Since not all of the input heat can be converted entirely into electricity (see [[Carnot efficiency]]), the MWt value will always be larger the the MWe value. The comparison gives a power plant its [[thermal efficiency]], which is a measure of how much useful work it can achieve for the amount of fuel it had to burn. Most older power plants are around 33% efficiency,<ref>EIA, ''What is the efficiency of different types of power plants?'' [Online], Available: http://www.eia.gov/tools/faqs/faq.cfm?id=107&t=3</ref> so the input thermal power is 3x more than the output electrical power.		For power plants, the thermal power input is measured in [[megawatts thermal]] (MWt). However, the output, which is usually supplying [[electric power to the grid]] is measured in [[megawatts electric]] (MWe).<ref>R. Wolfson, "Energy and Heat," in ''Energy, Environment and Climate,'' 2nd ed. New York, U.S.A.: Norton, 2012, pp. 86-87</ref> Since not all of the input heat can be converted entirely into electricity (see [[Carnot efficiency]]), the MWt value will always be larger the the MWe value. The comparison gives a power plant its [[thermal efficiency]], which is a measure of how much useful work it can achieve for the amount of fuel it had to burn. Most older power plants are around 33% efficiency,<ref>EIA, ''What is the efficiency of different types of power plants?'' [Online], Available: http://www.eia.gov/tools/faqs/faq.cfm?id=107&t=3</ref> so the input thermal power is 3x more than the output electrical power.

	Not all power plants require thermal power in order to generate electricity~~, plants~~ like [[hydroelectric facilities]], [[wind turbine]]s, or [[photovoltaic cell]]s use other forms of power from different energy [[flow]]s to create electricity. Therefore thermal power is only used for [[thermodynamics\|thermodynamic]] systems. Although the thermodynamic limits do not apply for these plants, such as the [[second law of thermodynamics]] and Carnot efficiency, they do have other factors that limit their [[efficiency]].		Not all power plants require thermal power in order to generate electricity. Plants like [[hydroelectric facilities]], [[wind turbine]]s, or [[photovoltaic cell]]s use other forms of power from different energy [[flow]]s to create electricity. Therefore, thermal power is only used for [[thermodynamics\|thermodynamic]] systems. Although the thermodynamic limits do not apply for these plants, such as the [[second law of thermodynamics]] and Carnot efficiency, they do have other factors that limit their [[efficiency]].

			==For Further Reading==
			*[[Heat vs work]]
			*[[Power plant]] and [[Heat engine]]
			*[[Electricity]]
			*[[Fuel]]
			*[[Carnot efficiency]]
			*Or explore a [[Special:Random\|random page]]

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

J.williams: 1 revision imported

2015-08-26T21:31:43Z

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J.williams at 17:00, 12 August 2015

2015-08-12T17:00:15Z

New page

[[Category:371 topics]]
[[Category:4D Heat Engines]]
[[Category:Done 2015-06-11]]
[[File:boilerflame.jpg|350px|thumb|Figure 1. Thermal power is supplied by a fuel to a boiler.<ref>Shehal Joseph via Flickr [Online], Available: https://www.flickr.com/photos/shehal/1167585170</ref>]]

<onlyinclude>'''Thermal power''' is a measure of [[power]] given by the exchange of [[heat]] in a system over time.</onlyinclude> Thermal power is supplied by [[fuel]] to a system, such as a [[power plant]] or [[heat engine]], most often with the goal of achieving useful [[work]]. Thermal power can be a measure of input, such as the heat input to a [[boiler]] in a power plant in order to generate [[electricity]], or it can be a measure of the output, such as the [[radiant heat]] given off by the Sun.

For power plants, the thermal power input is measured in [[megawatts thermal]] (MWt), which is to be distinguished from the [[electric power to the grid]] that is output that is measured in [[megawatts electric]] (MWe).<ref>R. Wolfson, "Energy and Heat," in ''Energy, Environment and Climate,'' 2nd ed. New York, U.S.A.: Norton, 2012, pp. 86-87</ref> Since not all of the input heat can be converted entirely into electricity (see [[Carnot efficiency]]), the MWt value will always be larger the the MWe value. The comparison gives a power plant its [[thermal efficiency]], which is a measure of how much useful work it can achieve for the amount of fuel it had to burn. Most older power plants are around 33% efficiency,<ref>EIA, ''What is the efficiency of different types of power plants?'' [Online], Available: http://www.eia.gov/tools/faqs/faq.cfm?id=107&t=3</ref> so the input thermal power is 3x more than the output electrical power.

Not all power plants require thermal power in order to generate electricity, plants like [[hydroelectric facilities]], [[wind turbine]]s, or [[photovoltaic cell]]s use other forms of power from different energy [[flow]]s to create electricity. Therefore thermal power is only used for [[thermodynamics|thermodynamic]] systems. Although the thermodynamic limits do not apply for these plants, such as the [[second law of thermodynamics]] and Carnot efficiency, they do have other factors that limit their [[efficiency]].

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