Refrigeration - Revision history

Eric: Added a Category to the Page

2022-06-28T10:17:48Z

Added a Category to the Page

← Older revision		Revision as of 10:17, 28 June 2022
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	==See Also==		==See Also==
	*[[Proposed GVCS]]		*[[Proposed GVCS]]

			[[Category: HVAC]]

VDP at 14:54, 6 August 2014

2014-08-06T14:54:36Z

← Older revision		Revision as of 14:54, 6 August 2014
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	{{Category=Home fittings}}		{{Category=Home fittings}}
	{{Category=Food Storage and Processing}}		{{Category=Food Storage and Processing}}
	~~==Einstein fridge==~~
	~~[[File:EinsteinFridge.JPG\|right\|thumb\|Patent drawing of Einstein's fridge. Fluids move around a series of pipes and chambers. Click to enlarge.\|400px]]~~
	Albert Einstein invented a refrigerator with no moving parts. It is powered by applying heat to one of the chambers; no electricity is required. The [[File:Einstein_Fridge.pdf\|expired patent]] gives basic plans of how it works. This should be developed into a full open-source design with building instructions, bill of materials etc. It fulfils all the criteria for an Open Ecology product: it is in the public domain, it should last a lifetime and be cheap to build, it would be extremely useful to an off-grid community, it could help alleviate poverty .

	==Thermal mass fridge==		==Thermal mass fridge==
			[[File:Thermal mass refrigerator.png\|right\|thumb\|150px\|Thermal mass refrigerator]]
	Described in Volume III of the [[Earthships\|Earthship]] manual. Basically uses the coolness of the earth in summer to keep cool.		Described in Volume III of the [[Earthships\|Earthship]] manual. Basically uses the coolness of the earth in summer to keep cool.

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	Therefore it is possible in a heat pump for total output to exceed the input the user paid for, like flying a kite. You only hold the string, the wind does the rest - both are required though for the system to work.		Therefore it is possible in a heat pump for total output to exceed the input the user paid for, like flying a kite. You only hold the string, the wind does the rest - both are required though for the system to work.

			==Einstein fridge==
			[[File:EinsteinFridge.JPG\|right\|thumb\|150px\|Patent drawing of Einstein's fridge. Fluids move around a series of pipes and chambers. Click to enlarge.]]
			Albert Einstein invented a refrigerator with no moving parts. It is powered by applying heat to one of the chambers; no electricity is required. The [[File:Einstein_Fridge.pdf\|expired patent]] gives basic plans of how it works. This should be developed into a full open-source design with building instructions, bill of materials etc. It fulfils all the criteria for an Open Ecology product: it is in the public domain, it should last a lifetime and be cheap to build, it would be extremely useful to an off-grid community, it could help alleviate poverty .

	==Evaporative Cooling==		==Evaporative Cooling==

Andrew Graham at 07:28, 9 March 2014

2014-03-09T07:28:54Z

← Older revision		Revision as of 07:28, 9 March 2014
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	http://www.ozefridge.com.au/?page_id=22		http://www.ozefridge.com.au/?page_id=22

			==Heat Pump==
			A heat pump can produce cooling in one region, and heat on another. A complete home hot water/heating and refrigeration/air cooling system could use a heat pump to eliminate both needs with one system.
			http://en.wikipedia.org/wiki/Heat_pump
			A heat pump is also a rare and useful case in thermodynamic engineering where total energetic output can exceed input the user paid for - the electricity used for the compressor. The additional energetic input is acquired from the environment. A common fridge can produce 3-5 times more energy than electrically input as an example.

			In a heat pump total output = (energy for compression + energy provided by environment) * efficiency

			eg. 2.5 units = (2 units + 3 units) * 50%

			COP (Coefficient of Performance) Formula = total output / input you paid for (energy for compression)

			eg. COP 1.25 = 2.5 / 2

			Therefore it is possible in a heat pump for total output to exceed the input the user paid for, like flying a kite. You only hold the string, the wind does the rest - both are required though for the system to work.

			==Evaporative Cooling==
			Very low energy consumption is required to use evaporative cooling. In the case of evaporative cooling, efficiency is reduced with increased humidity in the environment.
			http://en.wikipedia.org/wiki/Coolgardie_safe

	==Concept for combined thermal mass/ windcatcher system==		==Concept for combined thermal mass/ windcatcher system==

Andrew Graham: /* Fridge efficiency methods */

2014-03-09T07:06:12Z

Fridge efficiency methods

← Older revision		Revision as of 07:06, 9 March 2014
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	As the [[Earthships]] manual points out, it is wasteful to put a fridge in a heated room (as most homes do). If you want to keep the fridge cool, allow it access to cool outside air.		As the [[Earthships]] manual points out, it is wasteful to put a fridge in a heated room (as most homes do). If you want to keep the fridge cool, allow it access to cool outside air.

	Designing a fridge on the Eutectic Cell or Eutectic fridge principal can increase efficiency by a great deal. By using the phase change point you get to utilize temperature regulation at an optimum temperature, and only using the compressor after phase change has occurred. The thermal mass has an added advantage of being able to absorb heat without changing in temperature during the phase transition.
	~~http://www.autofridge.com.au/page/technical_information.html~~
	~~http://www.ozefridge.com.au/?page_id=22~~

	==Converting a freezer to a high-efficiency fridge==		==Converting a freezer to a high-efficiency fridge==

Andrew Graham at 07:05, 9 March 2014

2014-03-09T07:05:46Z

← Older revision		Revision as of 07:05, 9 March 2014
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	==Persian windcatchers==		==Persian windcatchers==
	A [http://en.wikipedia.org/wiki/Windcatcher windcatcher] is a tower rising up to catch high winds and funnel them down into an area to be cooled. Simultaneously, it acts as a chimney letting hot air rise out.		A [http://en.wikipedia.org/wiki/Windcatcher windcatcher] is a tower rising up to catch high winds and funnel them down into an area to be cooled. Simultaneously, it acts as a chimney letting hot air rise out.

			==Eutectic Fridge==
			Designing a refrigeration on the Eutectic cell or Eutectic fridge principal can increase efficiency by a great deal. By using the phase change point of a medium you get to utilize temperature regulation at an optimum desired point, and only using the compressor after phase change has occurred. The thermal mass has an advantage here of being able to absorb heat without changing in temperature during phase transition. it means a compressor or regulator can be utilized less.
			http://www.autofridge.com.au/page/technical_information.html
			http://www.ozefridge.com.au/?page_id=22


	==Concept for combined thermal mass/ windcatcher system==		==Concept for combined thermal mass/ windcatcher system==

Andrew Graham: /* Fridge efficiency methods */

2014-03-09T07:02:25Z

Fridge efficiency methods

← Older revision		Revision as of 07:02, 9 March 2014
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	As the [[Earthships]] manual points out, it is wasteful to put a fridge in a heated room (as most homes do). If you want to keep the fridge cool, allow it access to cool outside air.		As the [[Earthships]] manual points out, it is wasteful to put a fridge in a heated room (as most homes do). If you want to keep the fridge cool, allow it access to cool outside air.

			Designing a fridge on the Eutectic Cell or Eutectic fridge principal can increase efficiency by a great deal. By using the phase change point you get to utilize temperature regulation at an optimum temperature, and only using the compressor after phase change has occurred. The thermal mass has an added advantage of being able to absorb heat without changing in temperature during the phase transition.
			http://www.autofridge.com.au/page/technical_information.html
			http://www.ozefridge.com.au/?page_id=22

	==Converting a freezer to a high-efficiency fridge==		==Converting a freezer to a high-efficiency fridge==

Elifarley: Text replace - "\[http:\/\/openfarmtech\.org\/index\.php\?title=([^] |])[ |]([^]])\]" to "$2"

2013-07-02T21:45:14Z

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← Older revision		Revision as of 21:45, 2 July 2013
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	==Einstein fridge==		==Einstein fridge==
	[[File:EinsteinFridge.JPG\|right\|thumb\|Patent drawing of Einstein's fridge. Fluids move around a series of pipes and chambers. Click to enlarge.\|400px]]		[[File:EinsteinFridge.JPG\|right\|thumb\|Patent drawing of Einstein's fridge. Fluids move around a series of pipes and chambers. Click to enlarge.\|400px]]
	Albert Einstein invented a refrigerator with no moving parts. It is powered by applying heat to one of the chambers; no electricity is required. The [~~http://openfarmtech.org/index.php?title=~~File:Einstein_Fridge.pdf expired patent] gives basic plans of how it works. This should be developed into a full open-source design with building instructions, bill of materials etc. It fulfils all the criteria for an Open Ecology product: it is in the public domain, it should last a lifetime and be cheap to build, it would be extremely useful to an off-grid community, it could help alleviate poverty .		Albert Einstein invented a refrigerator with no moving parts. It is powered by applying heat to one of the chambers; no electricity is required. The [[File:Einstein_Fridge.pdf\|expired patent]] gives basic plans of how it works. This should be developed into a full open-source design with building instructions, bill of materials etc. It fulfils all the criteria for an Open Ecology product: it is in the public domain, it should last a lifetime and be cheap to build, it would be extremely useful to an off-grid community, it could help alleviate poverty .

	==Thermal mass fridge==		==Thermal mass fridge==

Elifarley: Reverted edits by Elifarley (talk) to last revision by Chris F

2013-07-02T21:21:05Z

Reverted edits by Elifarley (talk) to last revision by Chris F

← Older revision		Revision as of 21:21, 2 July 2013
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	==Einstein fridge==		==Einstein fridge==
	[[File:EinsteinFridge.JPG\|right\|thumb\|Patent drawing of Einstein's fridge. Fluids move around a series of pipes and chambers. Click to enlarge.\|400px]]		[[File:EinsteinFridge.JPG\|right\|thumb\|Patent drawing of Einstein's fridge. Fluids move around a series of pipes and chambers. Click to enlarge.\|400px]]
	Albert Einstein invented a refrigerator with no moving parts. It is powered by applying heat to one of the chambers; no electricity is required. The [[File:Einstein_Fridge.pdf\|expired patent]] gives basic plans of how it works. This should be developed into a full open-source design with building instructions, bill of materials etc. It fulfils all the criteria for an Open Ecology product: it is in the public domain, it should last a lifetime and be cheap to build, it would be extremely useful to an off-grid community, it could help alleviate poverty .		Albert Einstein invented a refrigerator with no moving parts. It is powered by applying heat to one of the chambers; no electricity is required. The [http://openfarmtech.org/index.php?title=File:Einstein_Fridge.pdf expired patent] gives basic plans of how it works. This should be developed into a full open-source design with building instructions, bill of materials etc. It fulfils all the criteria for an Open Ecology product: it is in the public domain, it should last a lifetime and be cheap to build, it would be extremely useful to an off-grid community, it could help alleviate poverty .

	==Thermal mass fridge==		==Thermal mass fridge==

Elifarley: Text replace - "\[http:\/\/openfarmtech\.org\/index\.php\?title=([^ ]) ([^]])\]" to "$2"

2013-07-02T19:08:11Z

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← Older revision		Revision as of 19:08, 2 July 2013
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	==Einstein fridge==		==Einstein fridge==
	[[File:EinsteinFridge.JPG\|right\|thumb\|Patent drawing of Einstein's fridge. Fluids move around a series of pipes and chambers. Click to enlarge.\|400px]]		[[File:EinsteinFridge.JPG\|right\|thumb\|Patent drawing of Einstein's fridge. Fluids move around a series of pipes and chambers. Click to enlarge.\|400px]]
	Albert Einstein invented a refrigerator with no moving parts. It is powered by applying heat to one of the chambers; no electricity is required. The [~~http://openfarmtech.org/index.php?title=~~File:Einstein_Fridge.pdf expired patent] gives basic plans of how it works. This should be developed into a full open-source design with building instructions, bill of materials etc. It fulfils all the criteria for an Open Ecology product: it is in the public domain, it should last a lifetime and be cheap to build, it would be extremely useful to an off-grid community, it could help alleviate poverty .		Albert Einstein invented a refrigerator with no moving parts. It is powered by applying heat to one of the chambers; no electricity is required. The [[File:Einstein_Fridge.pdf\|expired patent]] gives basic plans of how it works. This should be developed into a full open-source design with building instructions, bill of materials etc. It fulfils all the criteria for an Open Ecology product: it is in the public domain, it should last a lifetime and be cheap to build, it would be extremely useful to an off-grid community, it could help alleviate poverty .

	==Thermal mass fridge==		==Thermal mass fridge==

Chris F at 17:50, 11 September 2011

2011-09-11T17:50:17Z

← Older revision		Revision as of 17:50, 11 September 2011
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	[http://www.lightlink.com/francis/prospectus.htm#Icemaker STEVEN icemaker url]		[http://www.lightlink.com/francis/prospectus.htm#Icemaker STEVEN icemaker url]

			==See Also==
			*[[Proposed GVCS]]

Refrigeration - Revision history

Eric: Added a Category to the Page

VDP at 14:54, 6 August 2014

Andrew Graham at 07:28, 9 March 2014

Andrew Graham: /* Fridge efficiency methods */

Andrew Graham at 07:05, 9 March 2014

Andrew Graham: /* Fridge efficiency methods */

Elifarley: Text replace - "\[http:\/\/openfarmtech\.org\/index\.php\?title=([^] |]*)[ |]([^]]*)\]" to "$2"

Elifarley: Reverted edits by Elifarley (talk) to last revision by Chris F

Elifarley: Text replace - "\[http:\/\/openfarmtech\.org\/index\.php\?title=([^ ]*) ([^]]*)\]" to "$2"

Chris F at 17:50, 11 September 2011

Elifarley: Text replace - "\[http:\/\/openfarmtech\.org\/index\.php\?title=([^] |])[ |]([^]])\]" to "$2"

Elifarley: Text replace - "\[http:\/\/openfarmtech\.org\/index\.php\?title=([^ ]) ([^]])\]" to "$2"