Smokestack - Revision history

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2026-08-04T20:43:45Z

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energy>Jmdonev at 21:31, 3 July 2026

2026-07-03T21:31:02Z

← Older revision		Revision as of 21:31, 3 July 2026
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	[[Category:Done ~~2020~~-01~~-31~~]]		[[Category:Done 2026-08-01]]
	[[File:Inco_Superstack.jpg\|400px\|thumb\|Figure 1. The Inco Superstack in Sudbury, Ontario is 380 meters tall, note the train at the bottom for a sense of how high it is (click to enlarge).<ref>Wikimedia Commons [Online], Available: https://commons.wikimedia.org/wiki/File:Inco_Superstack.JPG#/media/File:Inco_Superstack.JPG</ref>]]		[[File:Inco_Superstack.jpg\|400px\|thumb\|Figure 1. The Inco Superstack in Sudbury, Ontario is 380 meters tall, note the train at the bottom for a sense of how high it is (click to enlarge).<ref>Wikimedia Commons [Online], Available: https://commons.wikimedia.org/wiki/File:Inco_Superstack.JPG#/media/File:Inco_Superstack.JPG</ref>]]

	<onlyinclude>A '''smokestack~~''', '''stack''', or '''chimney~~''' is a tall vertical pipe or channel used by [[power plant]]s to exhaust [[hydrocarbon combustion\|combustion]] gases into the air.</onlyinclude> This height disperses [[pollutant]]s over a wider [[area]] in order to minimize their impact. These gases are called [[flue gas]], and are emitted when [[hydrocarbon]] based [[fuel]]s such as [[coal]], [[oil]] or [[natural gas]] are burned.		<onlyinclude>A '''smokestack''' is a tall, vertical pipe or channel used by [[power plant]]s to exhaust [[hydrocarbon combustion\|combustion]] gases into the air.</onlyinclude> This height disperses [[pollutant]]s over a wider [[area]] in order to minimize their impact. These gases are called [[flue gas]], and are emitted when [[hydrocarbon]] based [[fuel]]s such as [[coal]], [[oil]] or [[natural gas]] are burned.

	These flue gases originate in the [[boiler]] where the combustion occurs, and contain various [[pollutant]]s depending on what kind of fuel is burned. Some of these pollutants include [[NOx\|nitrogen oxides (NOx)]], [[SOx\|sulfur oxides (SOx)]], [[carbon dioxide]], [[carbon monoxide]] and [[particulate matter]]. All of these are harmful and have various effects on the [[environment]], so many methods are employed to rid of as much of these as possible before the gas is sent into the [[atmosphere]]. Technologies such as [[wet scrubber\|wet]] and [[dry scrubber]]s, and [[electrostatic precipitator]]s can remove up to 99% of certain pollutants.<ref name="RE2">R. Wolfson. ''Energy, Environment and Climate'', 2nd ed. New York, U.S.A.: Norton, 2012</ref>		These flue gases originate in the [[boiler]] where the combustion occurs, and contain various [[pollutant]]s depending on what kind of fuel is burned. Some of these pollutants include [[NOx\|nitrogen oxides (NOx)]], [[SOx\|sulfur oxides (SOx)]], [[carbon dioxide]], [[carbon monoxide]] and [[particulate matter]]. All of these are harmful and have various effects on the [[environment]], so many methods are employed to rid of as much of these as possible before the gas is sent into the [[atmosphere]]. Technologies such as [[wet scrubber\|wet]] and [[dry scrubber]]s, and [[electrostatic precipitator]]s can remove up to 99% of certain pollutants.<ref name="RE2">R. Wolfson. ''Energy, Environment and Climate'', 2nd ed. New York, U.S.A.: Norton, 2012</ref>

	Along with using these technologies, another ~~technique is used which reduces harmful gases over a given area. This~~ technique is to build the stack very high, because [[wind]] speeds are greater at high elevations, and the dispersion of the gases results in less gas remaining in a given area. Also, by building stacks higher than [[inversion layer]]s the gas can be dispersed even more effectively. Some smokestacks are comparable to the largest buildings in the world, such as that in Figure 1, which is about as tall as the Empire State Building. Although dispersion of certain pollutants helps in some cases, this technique does not by any means solve the [[pollution]] problem of these power plants since these pollutants may cause problems downwind such as [[acid rain]].<ref name=hinrichs>R. A. Hinrichs and M. Kleinbach, "Stationary Source Air-Pollution-Control Systems," in ''Energy: Its Use and the Environment'', 5th ed. Toronto, Ont. Canada: Brooks/Cole, 2013, ch.8, sec.F, pp.265-270</ref>		Along with using these technologies, another technique is to build the stack very high, because [[wind]] speeds are greater (and wind is less turbulent) at high elevations, and the dispersion of the gases results in less gas remaining in a given area. Also, by building stacks higher than [[inversion layer]]s the gas can be dispersed even more effectively. Some smokestacks are comparable to the largest buildings in the world, such as that in Figure 1, which is about as tall as the Empire State Building. Although dispersion of certain pollutants helps in some cases, this technique does not by any means solve the [[pollution]] problem of these power plants since these pollutants may cause problems downwind such as [[acid rain]].<ref name=hinrichs>R. A. Hinrichs and M. Kleinbach, "Stationary Source Air-Pollution-Control Systems," in ''Energy: Its Use and the Environment'', 5th ed. Toronto, Ont. Canada: Brooks/Cole, 2013, ch.8, sec.F, pp.265-270</ref>

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

Jmdonev: 1 revision imported

2020-01-31T05:10:14Z

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Energy>Jmdonev at 19:48, 30 January 2020

2020-01-30T19:48:28Z

← Older revision		Revision as of 19:48, 30 January 2020
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	[[Category:Done ~~2015~~-08-21]]		[[Category:Done 2020-01-31]]
	[[File:Inco_Superstack.jpg\|400px\|thumb\|Figure 1. The Inco Superstack in Sudbury, Ontario is 380 meters tall, note the train at the bottom for a sense of how high it is (click to enlarge).<ref>Wikimedia Commons [Online], Available: https://commons.wikimedia.org/wiki/File:Inco_Superstack.JPG#/media/File:Inco_Superstack.JPG</ref>]]		[[File:Inco_Superstack.jpg\|400px\|thumb\|Figure 1. The Inco Superstack in Sudbury, Ontario is 380 meters tall, note the train at the bottom for a sense of how high it is (click to enlarge).<ref>Wikimedia Commons [Online], Available: https://commons.wikimedia.org/wiki/File:Inco_Superstack.JPG#/media/File:Inco_Superstack.JPG</ref>]]

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	Along with using these technologies, another technique is used which reduces harmful gases over a given area. This technique is to build the stack very high, because [[wind]] speeds are greater at high elevations, and the dispersion of the gases results in less gas remaining in a given area. Also, by building stacks higher than [[inversion layer]]s the gas can be dispersed even more effectively. Some smokestacks are comparable to the largest buildings in the world, such as that in Figure 1, which is about as tall as the Empire State Building. Although dispersion of certain pollutants helps in some cases, this technique does not by any means solve the [[pollution]] problem of these power plants since these pollutants may cause problems downwind such as [[acid rain]].<ref name=hinrichs>R. A. Hinrichs and M. Kleinbach, "Stationary Source Air-Pollution-Control Systems," in ''Energy: Its Use and the Environment'', 5th ed. Toronto, Ont. Canada: Brooks/Cole, 2013, ch.8, sec.F, pp.265-270</ref>		Along with using these technologies, another technique is used which reduces harmful gases over a given area. This technique is to build the stack very high, because [[wind]] speeds are greater at high elevations, and the dispersion of the gases results in less gas remaining in a given area. Also, by building stacks higher than [[inversion layer]]s the gas can be dispersed even more effectively. Some smokestacks are comparable to the largest buildings in the world, such as that in Figure 1, which is about as tall as the Empire State Building. Although dispersion of certain pollutants helps in some cases, this technique does not by any means solve the [[pollution]] problem of these power plants since these pollutants may cause problems downwind such as [[acid rain]].<ref name=hinrichs>R. A. Hinrichs and M. Kleinbach, "Stationary Source Air-Pollution-Control Systems," in ''Energy: Its Use and the Environment'', 5th ed. Toronto, Ont. Canada: Brooks/Cole, 2013, ch.8, sec.F, pp.265-270</ref>

	''Visit the page on [[air pollution control devices]] to learn the specifics on how flue gases are cleaned before being sent to the smokestack.''		==For Further Reading==
			*Visit the page on [[air pollution control devices]] to learn the specifics on how flue gases are cleaned before being sent to the smokestack.
			*[[Pollution]]
			*[[Smog]]
			*[[Sulfur oxides]]
			*[[Acid rain]]
			*Or explore a [[Special:Random\|random page]]

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

J.williams: 1 revision imported

2015-08-26T21:31:39Z

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J.williams at 16:59, 12 August 2015

2015-08-12T16:59:02Z

New page

[[Category:Done 2015-08-21]]
[[File:Inco_Superstack.jpg|400px|thumb|Figure 1. The Inco Superstack in Sudbury, Ontario is 380 meters tall, note the train at the bottom for a sense of how high it is (click to enlarge).<ref>Wikimedia Commons [Online], Available: https://commons.wikimedia.org/wiki/File:Inco_Superstack.JPG#/media/File:Inco_Superstack.JPG</ref>]]

<onlyinclude>A '''smokestack''', '''stack''', or '''chimney''' is a tall vertical pipe or channel used by [[power plant]]s to exhaust [[hydrocarbon combustion|combustion]] gases into the air.</onlyinclude> This height disperses [[pollutant]]s over a wider [[area]] in order to minimize their impact. These gases are called [[flue gas]], and are emitted when [[hydrocarbon]] based [[fuel]]s such as [[coal]], [[oil]] or [[natural gas]] are burned.

These flue gases originate in the [[boiler]] where the combustion occurs, and contain various [[pollutant]]s depending on what kind of fuel is burned. Some of these pollutants include [[NOx|nitrogen oxides (NOx)]], [[SOx|sulfur oxides (SOx)]], [[carbon dioxide]], [[carbon monoxide]] and [[particulate matter]]. All of these are harmful and have various effects on the [[environment]], so many methods are employed to rid of as much of these as possible before the gas is sent into the [[atmosphere]]. Technologies such as [[wet scrubber|wet]] and [[dry scrubber]]s, and [[electrostatic precipitator]]s can remove up to 99% of certain pollutants.<ref name="RE2">R. Wolfson. ''Energy, Environment and Climate'', 2nd ed. New York, U.S.A.: Norton, 2012</ref>

Along with using these technologies, another technique is used which reduces harmful gases over a given area. This technique is to build the stack very high, because [[wind]] speeds are greater at high elevations, and the dispersion of the gases results in less gas remaining in a given area. Also, by building stacks higher than [[inversion layer]]s the gas can be dispersed even more effectively. Some smokestacks are comparable to the largest buildings in the world, such as that in Figure 1, which is about as tall as the Empire State Building. Although dispersion of certain pollutants helps in some cases, this technique does not by any means solve the [[pollution]] problem of these power plants since these pollutants may cause problems downwind such as [[acid rain]].<ref name=hinrichs>R. A. Hinrichs and M. Kleinbach, "Stationary Source Air-Pollution-Control Systems," in ''Energy: Its Use and the Environment'', 5th ed. Toronto, Ont. Canada: Brooks/Cole, 2013, ch.8, sec.F, pp.265-270</ref>

''Visit the page on [[air pollution control devices]] to learn the specifics on how flue gases are cleaned before being sent to the smokestack.''

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