Heat Transfer Fluid - Revision history

Maltfield at 20:10, 7 November 2022

2022-11-07T20:10:28Z

← Older revision		Revision as of 20:10, 7 November 2022
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	*[http://en.wikipedia.org/wiki/Coolant The Wikipedia Page on Coolant]		*[http://en.wikipedia.org/wiki/Coolant The Wikipedia Page on Coolant]
	*[http://en.wikipedia.org/wiki/Zeolite The Wikipedia Page on Zeolite]		*[http://en.wikipedia.org/wiki/Zeolite The Wikipedia Page on Zeolite]
			*[https://everipedia.org/wiki/lang_en/Heat_transfer]

	[[Category: Bio-Petrochemistry]] [[Category: Energy]] [[Category: Solar Power]]		[[Category: Bio-Petrochemistry]] [[Category: Energy]] [[Category: Solar Power]]

Maltfield at 19:22, 7 November 2022

2022-11-07T19:22:24Z

← Older revision		Revision as of 19:22, 7 November 2022
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	=Internal Links=		=Internal Links=
	*[[Sensible Heat Storage]] THINK that was the term in some papers		*[[Sensible Heat Storage]] THINK that was the term in some papers
			*[[Scheffler]]

	=External Links=		=External Links=

Eric: Minor Typo Fix

2021-02-19T00:31:17Z

Minor Typo Fix

← Older revision		Revision as of 00:31, 19 February 2021
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	* [[Solar Combined Heat Power System]]		* [[Solar Combined Heat Power System]]

	=~~Intenral~~ Links=		=Internal Links=
	*[[Sensible Heat Storage]] THINK that was the term in some papers		*[[Sensible Heat Storage]] THINK that was the term in some papers

Eric: Minor Clarification

2021-02-19T00:31:03Z

Minor Clarification

← Older revision		Revision as of 00:31, 19 February 2021
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	=Basics=		=Basics=
	Heat can be stored for later use in a heat transfer fluid. This can overcome the intermittency of solar energy to some extent. Heat from ~~biomass~~ can also be stored in a heat bank, ~~allowing for "cascading" use~~ (example: waste heat from cooking is captured in a chimney and later used to heat up water)~~. Examples of heat transfer fluids are water, molten metals/salts and oils.~~		*Heat can be stored for later use in a heat transfer fluid.
			*This can overcome the intermittency of solar energy to some extent.
			*Heat from other sources such as [[Biomass]], and [[Waste Heat]] can also be stored in a heat bank, (example: waste heat from cooking is captured in a chimney and later used to heat up water)

	=Ethylene Glycol=		=Ethylene Glycol=

Eric: Added some more information

2021-02-01T06:02:34Z

Added some more information

← Older revision		Revision as of 06:02, 1 February 2021
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	=Basics=		=Basics=
	Heat can be stored for later use in a heat transfer fluid. This can overcome the intermittency of solar energy to some extent. Heat from biomass can also be stored in a heat bank, allowing for "cascading" use (example: waste heat from cooking is captured in a chimney and later used to heat up water). Examples of heat transfer fluids are water, molten metals/salts and oils.		Heat can be stored for later use in a heat transfer fluid. This can overcome the intermittency of solar energy to some extent. Heat from biomass can also be stored in a heat bank, allowing for "cascading" use (example: waste heat from cooking is captured in a chimney and later used to heat up water). Examples of heat transfer fluids are water, molten metals/salts and oils.

			=Ethylene Glycol=
			*"Pure ethylene glycol has a specific heat capacity about one half that of water. So, while providing freeze protection and an increased boiling point, ethylene glycol lowers the specific heat capacity of water mixtures relative to pure water. A 1:1 mix by mass has a specific heat capacity of about 3140 J/(kg·°C) (0.75 BTU/(lb·°F)), three quarters that of pure water, thus requiring increased flow rates in same-system comparisons with water."

	=Molten Salts and Metals=		=Molten Salts and Metals=

Eric: Added a Category to the Page

2021-01-29T02:56:48Z

Added a Category to the Page

← Older revision		Revision as of 02:56, 29 January 2021
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	*[http://en.wikipedia.org/wiki/Zeolite The Wikipedia Page on Zeolite]		*[http://en.wikipedia.org/wiki/Zeolite The Wikipedia Page on Zeolite]

	[[Category: Energy]] [[Category: Solar Power]]		[[Category: Bio-Petrochemistry]] [[Category: Energy]] [[Category: Solar Power]]

Eric: Minor Text Formating Fix

2021-01-29T02:56:27Z

Minor Text Formating Fix

← Older revision		Revision as of 02:56, 29 January 2021
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	*[http://en.wikipedia.org/wiki/Zeolite The Wikipedia Page on Zeolite]		*[http://en.wikipedia.org/wiki/Zeolite The Wikipedia Page on Zeolite]

	[[Category:~~Solar Power~~]]		[[Category: Energy]] [[Category: Solar Power]]
	[[Category:~~Energy~~]]

Eric: Minor Text Formating Fix

2021-01-29T02:56:11Z

Minor Text Formating Fix

← Older revision		Revision as of 02:56, 29 January 2021
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	Vegetable oils can be used as heat transfer fluids. They have high thermal capacity, are often very liquid at high temperature, but may degrade over time and are expensive.		Vegetable oils can be used as heat transfer fluids. They have high thermal capacity, are often very liquid at high temperature, but may degrade over time and are expensive.

	=Solid Carriers		=Solid Carriers=
	Some appropriate technology experiments have been done in the 1970-80's with sand, gravel or bricks as heat transfer items. These are heated in a solar furnace and then transferred to an insulated box for storage. Generally this was for hot box slow cooking of food, bed heating and drying boxes. Its not new some stone-age desert tribes used sun heated rocks to cook and heat at night. Proper insulated containers, heavy insulated tongs and suitable safety clearances, locks and other provisions to keep the kids out are needed. For a high flow application a cable lift or scaled down [[Aerial Ropeways]] in a protective sheath would work. Heat tolerant conveyor belts were tried in the seventies with both sand and gravel. Manual transfer with tongs or long handles will work in testing and the lowest technology application. There's nothing I can find on the web; Its all very early work.		Some appropriate technology experiments have been done in the 1970-80's with sand, gravel or bricks as heat transfer items. These are heated in a solar furnace and then transferred to an insulated box for storage. Generally this was for hot box slow cooking of food, bed heating and drying boxes. Its not new some stone-age desert tribes used sun heated rocks to cook and heat at night. Proper insulated containers, heavy insulated tongs and suitable safety clearances, locks and other provisions to keep the kids out are needed. For a high flow application a cable lift or scaled down [[Aerial Ropeways]] in a protective sheath would work. Heat tolerant conveyor belts were tried in the seventies with both sand and gravel. Manual transfer with tongs or long handles will work in testing and the lowest technology application. There's nothing I can find on the web; Its all very early work.

Eric: Updated the page to the more recent formatting style + Added some More Information

2020-06-21T02:50:30Z

Updated the page to the more recent formatting style + Added some More Information

← Older revision		Revision as of 02:50, 21 June 2020
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			=Basics=
	Heat can be stored for later use in a heat transfer fluid. This can overcome the intermittency of solar energy to some extent. Heat from biomass can also be stored in a heat bank, allowing for "cascading" use (example: waste heat from cooking is captured in a chimney and later used to heat up water). Examples of heat transfer fluids are water, molten metals/salts and oils.		Heat can be stored for later use in a heat transfer fluid. This can overcome the intermittency of solar energy to some extent. Heat from biomass can also be stored in a heat bank, allowing for "cascading" use (example: waste heat from cooking is captured in a chimney and later used to heat up water). Examples of heat transfer fluids are water, molten metals/salts and oils.

	== Molten Salts and Metals ==		=Molten Salts and Metals=
	used in [http://en.wikipedia.org/wiki/Fast_breeder (fast) breeder nuclear reactors]		used in [http://en.wikipedia.org/wiki/Fast_breeder (fast) breeder nuclear reactors]
	sodium (Na), potassium (P) or an alloy of these (NaK, pronounced "''nack''").		sodium (Na), potassium (P) or an alloy of these (NaK, pronounced "''nack''").

	~~molten salts:~~		==Molten Salts==
	[https://en.wikipedia.org/wiki/Sodium_nitrate Sodium nitrate] - used as heat transfer fluid for large solar thermal installations (example: [https://en.wikipedia.org/wiki/Andasol_Solar_Power_Station Andasol Power Station])		[https://en.wikipedia.org/wiki/Sodium_nitrate Sodium nitrate] - used as heat transfer fluid for large solar thermal installations (example: [https://en.wikipedia.org/wiki/Andasol_Solar_Power_Station Andasol Power Station])

	== Oils ==		=Oils=
	Vegetable oils can be used as heat transfer fluids. They have high thermal capacity, are often very liquid at high temperature, but may degrade over time and are expensive.		Vegetable oils can be used as heat transfer fluids. They have high thermal capacity, are often very liquid at high temperature, but may degrade over time and are expensive.

	==Solid Carriers==		=Solid Carriers
	Some appropriate technology experiments have been done in the 1970-80's with sand, gravel or bricks as heat transfer items. These are heated in a solar furnace and then transferred to an insulated box for storage. Generally this was for hot box slow cooking of food, bed heating and drying boxes. Its not new some stone-age desert tribes used sun heated rocks to cook and heat at night. Proper insulated containers, heavy insulated tongs and suitable safety clearances, locks and other provisions to keep the kids out are needed. For a high flow application a cable lift or scaled down [[Aerial Ropeways]] in a protective sheath would work. Heat tolerant conveyor belts were tried in the seventies with both sand and gravel. Manual transfer with tongs or long handles will work in testing and the lowest technology application. There's nothing I can find on the web; Its all very early work.		Some appropriate technology experiments have been done in the 1970-80's with sand, gravel or bricks as heat transfer items. These are heated in a solar furnace and then transferred to an insulated box for storage. Generally this was for hot box slow cooking of food, bed heating and drying boxes. Its not new some stone-age desert tribes used sun heated rocks to cook and heat at night. Proper insulated containers, heavy insulated tongs and suitable safety clearances, locks and other provisions to keep the kids out are needed. For a high flow application a cable lift or scaled down [[Aerial Ropeways]] in a protective sheath would work. Heat tolerant conveyor belts were tried in the seventies with both sand and gravel. Manual transfer with tongs or long handles will work in testing and the lowest technology application. There's nothing I can find on the web; Its all very early work.

	==Zeolites==		=Zeolites=
	One of the best solid carrier options is [[zeolite\|zeolites]] that are heated to drive off water. These store cold indefinitely if sealed properly. If water is later added the thermochemical phase change generates enough heat to cook meals and sterilise water. These are used to cook meals in army field rations. It can generate steam but most of the water in contact with the zeolite is held. [[zeolite\|Zeolites]]are found as cat litter, soil conditioners etc but it would be much cheaper to buy wholesale from the bulk miners or find an unclaimed deposit. Not all commercial zeolites exhibit the thermal properties.		One of the best solid carrier options is [[zeolite\|zeolites]] that are heated to drive off water. These store cold indefinitely if sealed properly. If water is later added the thermochemical phase change generates enough heat to cook meals and sterilise water. These are used to cook meals in army field rations. It can generate steam but most of the water in contact with the zeolite is held. [[zeolite\|Zeolites]]are found as cat litter, soil conditioners etc but it would be much cheaper to buy wholesale from the bulk miners or find an unclaimed deposit. Not all commercial zeolites exhibit the thermal properties.
	There are also [[zeolite]] solar refrigerators. http://refrigerators-appliances.com/246008/what-year-was-the-refrigerator-invented/zeolite-solar-refrigeration.html		There are also [[zeolite]] solar refrigerators. http://refrigerators-appliances.com/246008/what-year-was-the-refrigerator-invented/zeolite-solar-refrigeration.html
	Note: Zeolites also can store gaseous hydrogen.		Note: Zeolites also can store gaseous hydrogen.

	== Product Ecology ==		=Product Ecology=
	* heat sources: solar energy from a [[heliostat]]; also biomass energy		* heat sources: solar energy from a [[heliostat]]; also biomass energy
	* [[Solar Combined Heat Power System]]		* [[Solar Combined Heat Power System]]

	== Links ==		=Intenral Links=
	* http://en.wikipedia.org/wiki/Coolant		*[[Sensible Heat Storage]] THINK that was the term in some papers
	* http://en.wikipedia.org/wiki/Zeolite
			=External Links=
			*[http://en.wikipedia.org/wiki/Coolant The Wikipedia Page on Coolant]
			*[http://en.wikipedia.org/wiki/Zeolite The Wikipedia Page on Zeolite]

	[[Category:Solar Power]]		[[Category:Solar Power]]
	[[Category:Energy]]		[[Category:Energy]]

Rasmus at 09:01, 12 August 2016

2016-08-12T09:01:40Z

← Older revision		Revision as of 09:01, 12 August 2016
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	==Zeolites==		==Zeolites==
	One of the best solid carrier options is [[zeolites]] that are heated to drive off water. These store cold indefinitely if sealed properly. If water is later added the thermochemical phase change generates enough heat to cook meals and sterilise water. These are used to cook meals in army field rations. It can generate steam but most of the water in contact with the zeolite is held. Zeolites are found as cat litter, soil conditioners etc but it would be much cheaper to buy wholesale from the bulk miners or find an unclaimed deposit. Not all commercial zeolites exhibit the thermal properties.		One of the best solid carrier options is [[zeolite\|zeolites]] that are heated to drive off water. These store cold indefinitely if sealed properly. If water is later added the thermochemical phase change generates enough heat to cook meals and sterilise water. These are used to cook meals in army field rations. It can generate steam but most of the water in contact with the zeolite is held. [[zeolite\|Zeolites]]are found as cat litter, soil conditioners etc but it would be much cheaper to buy wholesale from the bulk miners or find an unclaimed deposit. Not all commercial zeolites exhibit the thermal properties.
	There are also [[zeolite]] solar refrigerators. http://refrigerators-appliances.com/246008/what-year-was-the-refrigerator-invented/zeolite-solar-refrigeration.html		There are also [[zeolite]] solar refrigerators. http://refrigerators-appliances.com/246008/what-year-was-the-refrigerator-invented/zeolite-solar-refrigeration.html
	Note: Zeolites also can store gaseous hydrogen.		Note: Zeolites also can store gaseous hydrogen.