Open Source Solar Water Heater - Revision history

Eric: Added some more information

2020-07-28T21:15:40Z

Added some more information

← Older revision		Revision as of 21:15, 28 July 2020
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	*Need to look into if these can be grouped for boiling temperatures (this may lead to [[Steam Hammer]] and/or overpressure explosions, but perhaps with the right precautions (Steam traps, overpressure valves. etc)		*Need to look into if these can be grouped for boiling temperatures (this may lead to [[Steam Hammer]] and/or overpressure explosions, but perhaps with the right precautions (Steam traps, overpressure valves. etc)
	*Direct systems can be used for pool/utility water, for potable water, indirect may be better		*Direct systems can be used for pool/utility water, for potable water, indirect may be better
			*Hard part seems to be storage systems for the pressurised, potable water
			*Some way to make a sort of "on demand hot water" for central hot warer, via indirect heating?
			*If not simplest market is pool heating

	=Industry Standards=		=Industry Standards=
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	=Basic Design=		=Basic Design=
	===Plastic Tube Coil===		==Plastic Tube Coil==
	====Box====		===Box===
	*A wood or metal box		*A wood or metal box
	*Optional insulation		*Optional insulation

	====Backplate====		===Backplate===
	*=Sheet metal		*=Sheet metal
	*make reflective or dark as well?		*make reflective or dark as well?

	====Coil====		===Coil===
	*Standard OTS refrigeration coil, or custom bent tubing		*Standard OTS refrigeration coil, or custom bent tubing
	*Has the standard fittings at each end		*Has the standard fittings at each end

	====Insulation====		===Insulation===
	*Foam and/or fiber for the main areas		*Foam and/or fiber for the main areas
	*Glass and air/vacuum gap above coil, or would the walls and cost make it not worth it?		*Glass and air/vacuum gap above coil, or would the walls and cost make it not worth it?

	====Temperature Probes====		===Temperature Probes===
	*Attach right above the hose adapters		*Attach right above the hose adapters
	*Wires go where?		*Wires go where?

	====Paint====		===Paint===
	*Most likely standard black paint, but the darker, the better		*Most likely standard black paint, but the darker, the better
	*Not 100% needed, but is a cheap way to increase absorbtion		*Not 100% needed, but is a cheap way to increase absorbtion

	====Heat Exchanger?====		===Heat Exchanger?===
	*[[Open Source Liquid-Liquid Heat Exchanger]]		*[[Open Source Liquid-Liquid Heat Exchanger]]

	====BOM====		===BOM===
	*~1m Sheet Metal (what metal?)		*~1m Sheet Metal (what metal?)
	*Fiberglass insulation		*Fiberglass insulation
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	*Optional temperature sensors		*Optional temperature sensors
	*Perhaps Wood or Plastic Exterior		*Perhaps Wood or Plastic Exterior

			==Plastic Tube Panel==
			===Rigid High Temp PVC Pipe===
			*Used for the top and bottom pipes (ie feed and return)

			===Flexible (Black) High Temp Hosing===
			*Used to get up and down from the panel, and for the panel's "runs"

			===Attachment Points===
			*Either OTS fittings, or some custom solution
			*Screw in/otherwise attach to the top and bottom pvc pipes, holding the runs in place, and connecting them to the system
			*Modular, as as many as wanted can be added to a cut section of HT PVC Pipe

			===Control Box===
			*Arduino and/or Rpi
			*Takes Sensor Data, and IO Settings in
			*Controls the Pump

			===Temperature Probe===
			*1 at each end of the collector panel (two total)
			*1 in the working fluid tank
			*1 at each end of the tank (ie to and from panel)

			===Pump===
			*Small electric pump (calculate head needed)

			===Working Fluid===
			*Most likely some sort of oil (higher viscosity, but will not freeze?
			*Also stores heat better

	=Internal Links=		=Internal Links=

Eric: Minor Text Formating Fix

2020-07-28T20:49:09Z

Minor Text Formating Fix

← Older revision		Revision as of 20:49, 28 July 2020
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	*[[Open Source Liquid-Liquid Heat Exchanger]]		*[[Open Source Liquid-Liquid Heat Exchanger]]

	=====BOM=====		====BOM====
	*~1m Sheet Metal (what metal?)		*~1m Sheet Metal (what metal?)
	*Fiberglass insulation		*Fiberglass insulation

Eric: Minor Text Formating Fix

2020-07-28T20:48:56Z

Minor Text Formating Fix

← Older revision		Revision as of 20:48, 28 July 2020
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	*Optional insulation		*Optional insulation

	===Backplate====		====Backplate====
	*=Sheet metal		*=Sheet metal
	*make reflective or dark as well?		*make reflective or dark as well?

Eric: Moved some stuff around

2020-07-28T20:48:31Z

Moved some stuff around

← Older revision		Revision as of 20:48, 28 July 2020
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	=Industry Standards=		=Industry Standards=
	*		==Plastic Tube Panel==
			*[https://www.amazon.com/SolarPoolSupply-Solar-Pool-Heater-Replacement/dp/B076B75D7P/ref=sr_1_1_sspa?dchild=1&keywords=SOLARPOOLSUPPLY&qid=1595969118&sr=8-1-spons&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUExWkRVVk9MREk0OVowJmVuY3J5cHRlZElkPUEwOTYxNjEzM0dLWFRCV0w3ODk5VSZlbmNyeXB0ZWRBZElkPUEwMDU4MTk5RUhQMk5SV0ZZRVBEJndpZGdldE5hbWU9c3BfYXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ&th=1 A Common Panel Design] ~350 USD minimum

	=Existing Open Source Designs=		=Existing Open Source Designs=
			==Plastic Tube Coil==
	*[https://www.youtube.com/watch?v=btQtPQpUf90 This Design by the Youtube Channel "Dessertsun02" ] Uses a copper coil with a metal reflector behind it, and a wood frame		*[https://www.youtube.com/watch?v=btQtPQpUf90 This Design by the Youtube Channel "Dessertsun02" ] Uses a copper coil with a metal reflector behind it, and a wood frame

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	=Basic Design=		=Basic Design=
	==Box==		===Plastic Tube Coil===
			====Box====
	*A wood or metal box		*A wood or metal box
	*Optional insulation		*Optional insulation

	==Backplate==		===Backplate====
	*Sheet metal		*=Sheet metal
	*make reflective or dark as well?		*make reflective or dark as well?

	=Coil=		====Coil====
	*Standard OTS refrigeration coil, or custom bent tubing		*Standard OTS refrigeration coil, or custom bent tubing
	*Has the standard fittings at each end		*Has the standard fittings at each end

	=Insulation=		====Insulation====
	*Foam and/or fiber for the main areas		*Foam and/or fiber for the main areas
	*Glass and air/vacuum gap above coil, or would the walls and cost make it not worth it?		*Glass and air/vacuum gap above coil, or would the walls and cost make it not worth it?

	=Temperature Probes=		====Temperature Probes====
	*Attach right above the hose adapters		*Attach right above the hose adapters
	*Wires go where?		*Wires go where?

	=Paint=		====Paint====
	*Most likely standard black paint, but the darker, the better		*Most likely standard black paint, but the darker, the better
	*Not 100% needed, but is a cheap way to increase absorbtion		*Not 100% needed, but is a cheap way to increase absorbtion

	=Heat Exchanger?=		====Heat Exchanger?====
	*[[Open Source Liquid-Liquid Heat Exchanger]]		*[[Open Source Liquid-Liquid Heat Exchanger]]

	=BOM=		=====BOM=====
	*~1m Sheet Metal (what metal?)		*~1m Sheet Metal (what metal?)
	*Fiberglass insulation		*Fiberglass insulation
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	*[https://en.wikipedia.org/wiki/Solar_water_heating The Wikipedia Page on Solar Water Heaters]		*[https://en.wikipedia.org/wiki/Solar_water_heating The Wikipedia Page on Solar Water Heaters]
	*[https://www.energy.gov/energysaver/solar-water-heaters/heat-transfer-fluids-solar-water-heating-systems An Energy.gov page on Working Fluids for Indirect Systems]		*[https://www.energy.gov/energysaver/solar-water-heaters/heat-transfer-fluids-solar-water-heating-systems An Energy.gov page on Working Fluids for Indirect Systems]
			*[

Eric: Added some more links under the "External Links" section

2020-07-28T20:44:15Z

Added some more links under the "External Links" section

← Older revision		Revision as of 20:44, 28 July 2020
Line 62:		Line 62:
	=External Links=		=External Links=
	*[https://en.wikipedia.org/wiki/Solar_water_heating The Wikipedia Page on Solar Water Heaters]		*[https://en.wikipedia.org/wiki/Solar_water_heating The Wikipedia Page on Solar Water Heaters]
			*[https://www.energy.gov/energysaver/solar-water-heaters/heat-transfer-fluids-solar-water-heating-systems An Energy.gov page on Working Fluids for Indirect Systems]

Eric: Added some more information

2020-07-28T20:42:31Z

Added some more information

← Older revision		Revision as of 20:42, 28 July 2020
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	*Can be used from cold to near boiling (see [[Open Source Solar Steam Generator]] ) for water to [[Wet Steam]], and [[Open Source Steam Superheater]] for [[Wet Steam]] to [[Dry Steam]]		*Can be used from cold to near boiling (see [[Open Source Solar Steam Generator]] ) for water to [[Wet Steam]], and [[Open Source Steam Superheater]] for [[Wet Steam]] to [[Dry Steam]]
	*There are many ways of doing this but this page will focus on pancake coil type designs, see [[Open Source Thermosyphon]] for thermosyphon designs		*There are many ways of doing this but this page will focus on pancake coil type designs, see [[Open Source Thermosyphon]] for thermosyphon designs
	*~~This page may use~~ tube~~/trough designs, but pancake seems like the main one as of now~~		*Pancake works well, a tube with modular screw in ports for long plastic tube runs is better for high flow
	*Need to look into if these can be grouped for boiling temperatures (this may lead to [[Steam Hammer]] and/or overpressure explosions, but perhaps with the right precautions (Steam traps, overpressure valves. etc)		*Need to look into if these can be grouped for boiling temperatures (this may lead to [[Steam Hammer]] and/or overpressure explosions, but perhaps with the right precautions (Steam traps, overpressure valves. etc)
			*Direct systems can be used for pool/utility water, for potable water, indirect may be better

	=Industry Standards=		=Industry Standards=

Eric: Added some more links under the "External Links" section

2020-07-28T20:40:44Z

Added some more links under the "External Links" section

← Older revision		Revision as of 20:40, 28 July 2020
Line 60:		Line 60:

	=External Links=		=External Links=
	*		*[https://en.wikipedia.org/wiki/Solar_water_heating The Wikipedia Page on Solar Water Heaters]

Eric: Updated the page to the more recent formatting style

2020-07-28T20:40:20Z

Updated the page to the more recent formatting style

← Older revision		Revision as of 20:40, 28 July 2020
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	*Perhaps Wood or Plastic Exterior		*Perhaps Wood or Plastic Exterior

	=~~See Also~~=		=Internal Links=
	*		*

	=~~Useful~~ Links=		=External Links=
	*		*

Eric: Created Page + Added Basic Sections/Info

2020-03-23T23:50:27Z

Created Page + Added Basic Sections/Info

New page

=Basics=
*A Device that uses Solar Thermal to heat water
*Can be used from cold to near boiling (see [[Open Source Solar Steam Generator]] ) for water to [[Wet Steam]], and [[Open Source Steam Superheater]] for [[Wet Steam]] to [[Dry Steam]]
*There are many ways of doing this but this page will focus on pancake coil type designs, see [[Open Source Thermosyphon]] for thermosyphon designs
*This page may use tube/trough designs, but pancake seems like the main one as of now
*Need to look into if these can be grouped for boiling temperatures (this may lead to [[Steam Hammer]] and/or overpressure explosions, but perhaps with the right precautions (Steam traps, overpressure valves. etc)

=Industry Standards=
*

=Existing Open Source Designs=
*[https://www.youtube.com/watch?v=btQtPQpUf90 This Design by the Youtube Channel "Dessertsun02" ] Uses a copper coil with a metal reflector behind it, and a wood frame

=Minimum Viable Product=
*Should be able to reach near boiling (~80C is what most existing designs could reach in one stage)
*Should be a small flat square (less than 1m^2 wide, and less than 5 cm deep?)
*Should use standard hose fittings for both the "in" and the "out"
*Optional temperature probes
*perhaps have a thicker and slightly wider model with insulation

=Basic Design=
==Box==
*A wood or metal box
*Optional insulation

==Backplate==
*Sheet metal
*make reflective or dark as well?

=Coil=
*Standard OTS refrigeration coil, or custom bent tubing
*Has the standard fittings at each end

=Insulation=
*Foam and/or fiber for the main areas
*Glass and air/vacuum gap above coil, or would the walls and cost make it not worth it?

=Temperature Probes=
*Attach right above the hose adapters
*Wires go where?

=Paint=
*Most likely standard black paint, but the darker, the better
*Not 100% needed, but is a cheap way to increase absorbtion

=Heat Exchanger?=
*[[Open Source Liquid-Liquid Heat Exchanger]]

=BOM=
*~1m Sheet Metal (what metal?)
*Fiberglass insulation
*Foam Insulation
*Either copper piping, or an OTS refrigeration coil
*Fittings
*Optional temperature sensors
*Perhaps Wood or Plastic Exterior

=See Also=
*

=Useful Links=
*