Chinese Greenhouse - Revision history

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2016-07-24T17:01:37Z

+ image

← Older revision		Revision as of 17:01, 24 July 2016
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	[[File:Chinese Greenhouse.jpg\|480px\|thumb\|right\|Chinese greenhouse, basic configuration. North wall as the main structural support. Transparent polyethylene foil coverage. Insulation blanket is rolled up and down. ]]		[[File:Chinese Greenhouse.jpg\|480px\|thumb\|right\|Chinese greenhouse, basic configuration. North wall as the main structural support. Transparent polyethylene foil coverage. Insulation blanket is rolled up and down. ]]

			[[File:MushroomFarmChina.jpg\|480px\|thumb\|right\|Mushroom Farm in China, using a solar greenhouse, "curtains" down. ]]

	==Background==		==Background==

Rasmus: /* Background */

2016-07-17T02:11:46Z

Background

← Older revision		Revision as of 02:11, 17 July 2016
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	==Background==		==Background==
	There is a special type of greenhouse that is common in China but largely unknown in the rest of the world. The concept originated in the 1970s and 80s and has been promoted by the government in China. To maximize solar heat collection, the greenhouse is facing south but has solid walls on its north (back), east and west side. Another feature is that it can be covered with insulating material at night (straw mats, other), which is then rolled up again in the morning. Most of these greenhouses do not require extra heating during the cold season ~~but~~ still manage to avoid freezing temperatures. The precise geometric configuration depends on latitude. All sorts of variations exist, from very low-tech, build-it-yourself versions with simple materials (bricks, rammed earth, bamboo, etc.) to very high-tech versions (steel, ventilation). The articles linked below, especially the one from Low-Tech Magazine, have much more information and photos.		There is a special type of solar greenhouse that is common in China but largely unknown in the rest of the world. The concept originated in the 1970s and 80s and has been promoted by the government in China. To maximize solar heat collection, the greenhouse is facing south but has solid walls on its north (back), east and west side. Another feature is that it can be covered with insulating material at night (straw mats, other), which is then rolled up again in the morning. Most of these greenhouses do not require extra heating during the cold season, yet still manage to avoid freezing temperatures. The precise geometric configuration depends on latitude. All sorts of variations exist, from very low-tech, build-it-yourself versions with simple materials (bricks, rammed earth, bamboo, etc.) to very high-tech versions (steel, ventilation). The articles linked below, especially the one from Low-Tech Magazine, have much more information and photos.

	==Good for China==		==Good for China==

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2016-04-29T23:06:20Z

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← Older revision		Revision as of 23:06, 29 April 2016
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	[[File:Farmer-917998 960 720.jpg\|480px\|thumb\|right\|Farmers in Chinese greenhouse. Background shows implementation using concrete supports, a very economical and common design option.]]		[[File:Farmer-917998 960 720.jpg\|480px\|thumb\|right\|Farmers in Chinese greenhouse. Background shows implementation using concrete supports, a very economical and common design option.]]

			[[File:Chinese Greenhouse.jpg\|480px\|thumb\|right\|Chinese greenhouse, basic configuration. North wall as the main structural support. Transparent polyethylene foil coverage. Insulation blanket is rolled up and down. ]]

	==Background==		==Background==

Rasmus at 04:45, 29 April 2016

2016-04-29T04:45:31Z

← Older revision		Revision as of 04:45, 29 April 2016
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			[[File:Farmer-917998 960 720.jpg\|480px\|thumb\|right\|Farmers in Chinese greenhouse. Background shows implementation using concrete supports, a very economical and common design option.]]

	==Background==		==Background==
	There is a special type of greenhouse that is common in China but largely unknown in the rest of the world. The concept originated in the 1970s and 80s and has been promoted by the government in China. To maximize solar heat collection, the greenhouse is facing south but has solid walls on its north (back), east and west side. Another feature is that it can be covered with insulating material at night (straw mats, other), which is then rolled up again in the morning. Most of these greenhouses do not require extra heating during the cold season but still manage to avoid freezing temperatures. The precise geometric configuration depends on latitude. All sorts of variations exist, from very low-tech, build-it-yourself versions with simple materials (bricks, rammed earth, bamboo, etc.) to very high-tech versions (steel, ventilation). The articles linked below, especially the one from Low-Tech Magazine, have much more information and photos.		There is a special type of greenhouse that is common in China but largely unknown in the rest of the world. The concept originated in the 1970s and 80s and has been promoted by the government in China. To maximize solar heat collection, the greenhouse is facing south but has solid walls on its north (back), east and west side. Another feature is that it can be covered with insulating material at night (straw mats, other), which is then rolled up again in the morning. Most of these greenhouses do not require extra heating during the cold season but still manage to avoid freezing temperatures. The precise geometric configuration depends on latitude. All sorts of variations exist, from very low-tech, build-it-yourself versions with simple materials (bricks, rammed earth, bamboo, etc.) to very high-tech versions (steel, ventilation). The articles linked below, especially the one from Low-Tech Magazine, have much more information and photos.

Rasmus: /* Links */

2016-04-29T04:31:47Z

Links

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	* Resilience.org: [http://www.resilience.org/stories/2010-04-06/solar-greenhouses-chinese-style "Solar greenhouses, Chinese-style"]		* Resilience.org: [http://www.resilience.org/stories/2010-04-06/solar-greenhouses-chinese-style "Solar greenhouses, Chinese-style"]
	* open access paper: [http://horttech.ashspublications.org/content/20/3/626.full "Structure, Function, Application, and Ecological Benefit of a Single-slope, Energy-efficient Solar Greenhouse in China"] (gives a nice overview: history, light, temperature, horticulture, etc.)		* open access paper: [http://horttech.ashspublications.org/content/20/3/626.full "Structure, Function, Application, and Ecological Benefit of a Single-slope, Energy-efficient Solar Greenhouse in China"] (gives a nice overview: history, light, temperature, horticulture, etc.)
			* FAO: [http://www.fao.org/docrep/t4470e/t4470e0c.htm "Research on the temperature environment of solar greenhouse"] (has a lot of technical detail)

	[[Category:Food and Agriculture]]		[[Category:Food and Agriculture]]
	[[Category:Housing and construction]]		[[Category:Housing and construction]]

Rasmus: /* Links */ inserted link to paper

2016-04-28T22:29:27Z

Links: inserted link to paper

← Older revision		Revision as of 22:29, 28 April 2016
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	* Low-Tech Magazine: [http://www.lowtechmagazine.com/2015/12/reinventing-the-greenhouse.html "Reinventing the Greenhouse"]		* Low-Tech Magazine: [http://www.lowtechmagazine.com/2015/12/reinventing-the-greenhouse.html "Reinventing the Greenhouse"]
	* Resilience.org: [http://www.resilience.org/stories/2010-04-06/solar-greenhouses-chinese-style "Solar greenhouses, Chinese-style"]		* Resilience.org: [http://www.resilience.org/stories/2010-04-06/solar-greenhouses-chinese-style "Solar greenhouses, Chinese-style"]
			* open access paper: [http://horttech.ashspublications.org/content/20/3/626.full "Structure, Function, Application, and Ecological Benefit of a Single-slope, Energy-efficient Solar Greenhouse in China"] (gives a nice overview: history, light, temperature, horticulture, etc.)

	[[Category:Food and Agriculture]]		[[Category:Food and Agriculture]]
	[[Category:Housing and construction]]		[[Category:Housing and construction]]

Rasmus at 22:10, 24 April 2016

2016-04-24T22:10:26Z

← Older revision		Revision as of 22:10, 24 April 2016
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	==Background==		==Background==
	There is a special type of greenhouse that is common in China but largely unknown in the rest of the world. ~~These~~ originated in the 1970s and 80s and ~~have~~ been promoted by the government in China. To maximize solar heat collection, the greenhouse is facing south but has solid walls on its north (back), east and west side. Another feature is that it can be covered with insulating material at night (straw mats, other), which is then rolled up again in the morning. Most of these greenhouses do not require extra heating during the cold season but still manage to avoid freezing temperatures. The precise geometric configuration depends on latitude. All sorts of variations exist, from very low-tech, build-it-yourself versions with simple materials (bricks, rammed earth, bamboo, etc.) to very high-tech versions (steel, ventilation). The articles linked below, especially the one from Low-Tech Magazine, have much more information and photos.		There is a special type of greenhouse that is common in China but largely unknown in the rest of the world. The concept originated in the 1970s and 80s and has been promoted by the government in China. To maximize solar heat collection, the greenhouse is facing south but has solid walls on its north (back), east and west side. Another feature is that it can be covered with insulating material at night (straw mats, other), which is then rolled up again in the morning. Most of these greenhouses do not require extra heating during the cold season but still manage to avoid freezing temperatures. The precise geometric configuration depends on latitude. All sorts of variations exist, from very low-tech, build-it-yourself versions with simple materials (bricks, rammed earth, bamboo, etc.) to very high-tech versions (steel, ventilation). The articles linked below, especially the one from Low-Tech Magazine, have much more information and photos.

	==Good for China==		==Good for China==

Rasmus: inserted video, some other edits

2016-04-16T15:31:05Z

inserted video, some other edits

← Older revision		Revision as of 15:31, 16 April 2016
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	There is a special type of greenhouse that is common in China but largely unknown in the rest of the world. These originated in the 1970s and 80s and have been promoted by the government in China. To maximize solar heat collection, the greenhouse is facing south but has solid walls on its north (back), east and west side. Another feature is that it can be covered with insulating material at night (straw mats, other), which is then rolled up again in the morning. Most of these greenhouses do not require extra heating during the cold season but still manage to avoid freezing temperatures. The precise geometric configuration depends on latitude. All sorts of variations exist, from very low-tech, build-it-yourself versions with simple materials (bricks, rammed earth, bamboo, etc.) to very high-tech versions (steel, ventilation). The articles below have much more information and photos.		==Background==
			There is a special type of greenhouse that is common in China but largely unknown in the rest of the world. These originated in the 1970s and 80s and have been promoted by the government in China. To maximize solar heat collection, the greenhouse is facing south but has solid walls on its north (back), east and west side. Another feature is that it can be covered with insulating material at night (straw mats, other), which is then rolled up again in the morning. Most of these greenhouses do not require extra heating during the cold season but still manage to avoid freezing temperatures. The precise geometric configuration depends on latitude. All sorts of variations exist, from very low-tech, build-it-yourself versions with simple materials (bricks, rammed earth, bamboo, etc.) to very high-tech versions (steel, ventilation). The articles linked below, especially the one from Low-Tech Magazine, have much more information and photos.

	~~----~~		==Good for China==
			This type of greenhouse is perfect for China but it is unclear how well it will perform in other circumstances.
	This type of greenhouse is perfect for China:
	* relatively low latitude and therefore high solar gain		* relatively low latitude and therefore high solar gain
	* cold winters but with little snow		* cold winters but with little snow
	* strong, cold northern winds		* strong, cold northern winds (to shield against)
	* cheap labor ~~costs~~ (to construct, to operate)		* cheap labor (to construct, to operate)
	* high population density (and therefore high local demand ~~for food~~)		* high population density (and therefore high local food demand)
	* strong government support for small-scale agriculture.		* strong government support for small-scale agriculture
	~~It is unclear how well these structures will perform in other circumstances.~~
			==Video==
			<html>
			<iframe width="560" height="415" src="https://www.youtube.com/embed/pnVZpXjPq2k" frameborder="0" allowfullscreen></iframe>
			</html>

	~~----~~
	==Links==		==Links==
	* Low-Tech Magazine: [http://www.lowtechmagazine.com/2015/12/reinventing-the-greenhouse.html "Reinventing the Greenhouse"]		* Low-Tech Magazine: [http://www.lowtechmagazine.com/2015/12/reinventing-the-greenhouse.html "Reinventing the Greenhouse"]

Rasmus: /* Links */ made links prettier, deleted broken link

2016-04-16T15:25:09Z

Links: made links prettier, deleted broken link

← Older revision		Revision as of 15:25, 16 April 2016
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	----		----
	==Links==		==Links==
	* http://www.lowtechmagazine.com/2015/12/reinventing-the-greenhouse.html		* Low-Tech Magazine: [http://www.lowtechmagazine.com/2015/12/reinventing-the-greenhouse.html "Reinventing the Greenhouse"]
	* ~~http~~:~~//localrootswooster.com/events/how-about-a-single-slope-greenhouse~~		* Resilience.org: [http://www.resilience.org/stories/2010-04-06/solar-greenhouses-chinese-style "Solar greenhouses, Chinese-style"]
	* http://www.resilience.org/stories/2010-04-06/solar-greenhouses-chinese-style


	[[Category:Food and Agriculture]]		[[Category:Food and Agriculture]]
	[[Category:Housing and construction]]		[[Category:Housing and construction]]

Rasmus: categorized

2016-04-16T15:15:12Z

categorized

← Older revision		Revision as of 15:15, 16 April 2016
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	* http://localrootswooster.com/events/how-about-a-single-slope-greenhouse		* http://localrootswooster.com/events/how-about-a-single-slope-greenhouse
	* http://www.resilience.org/stories/2010-04-06/solar-greenhouses-chinese-style		* http://www.resilience.org/stories/2010-04-06/solar-greenhouses-chinese-style


			[[Category:Food and Agriculture]]
			[[Category:Housing and construction]]