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countrytalkandtips.myfreeforum.org ........................ smallholding, crafts and country life ................................................... IN IRELAND .......................................................
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rool
Joined: 19 Mar 2007 Posts: 14
Location: South Limerick
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keithrawlins
Joined: 18 Feb 2007 Posts: 152
Location: banbridge
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Posted: Thu Mar 22, 2007 4:49 pm Post subject: |
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not yet but thanks to your link i will be this summer, the thing seems prety easy to make,(ishouldent have said that its going to be a nightmare now)
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JayBee
Joined: 28 Apr 2007 Posts: 21
Location: Kerry (but really a Kilkenny Cat)
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wayland
Joined: 14 Dec 2006 Posts: 1171
Location: Campile. Wexford
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Posted: Sun Apr 29, 2007 11:12 am Post subject: |
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Interesting thought. I like the evacuated tube design and it aint rocket science to build. Once we have found some glass tubes that is. I thought of recycling florescent tubes but fear that the glass is too thin. As to the grant etc. I may well use it but will have to do some costings first. They are much cheaper in the UK of course. _________________ Leave not a trace. |
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JayBee
Joined: 28 Apr 2007 Posts: 21
Location: Kerry (but really a Kilkenny Cat)
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wayland
Joined: 14 Dec 2006 Posts: 1171
Location: Campile. Wexford
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Posted: Wed May 09, 2007 6:16 am Post subject: |
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Nice one James. I notice with the commercial arrays the need for a pressure relief valve in case the fluid boils. do you think that your system has this risk? _________________ Leave not a trace. |
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JayBee
Joined: 28 Apr 2007 Posts: 21
Location: Kerry (but really a Kilkenny Cat)
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Posted: Wed May 09, 2007 9:06 am Post subject: |
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| wayland wrote: | | Nice one James. I notice with the commercial arrays the need for a pressure relief valve in case the fluid boils. do you think that your system has this risk? |
Boiling could be a problem. Definitely with my wood gasifier which gets up to 600C where any water pipes/jacket may reside.
My solar array would have a relief in the second hot water cylinder I shall install. Also a pressure relief could be installed almost anywhere.
For now, the array will be tested as a thermosiphon depositing hot water into an open tank. This will allow me to monitor what is going on more easily. _________________ James
http://the-goodlife.blogspot.com |
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wayland
Joined: 14 Dec 2006 Posts: 1171
Location: Campile. Wexford
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Posted: Thu May 10, 2007 5:22 pm Post subject: |
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I think I shall have mine pumped by a vairable speed pump. With a stat fitted I would be more comfortable in the knowledge that if the water got to boiling point, the pump would go up a notch and dump the hot water more quickly. Keep us posted  _________________ Leave not a trace. |
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JayBee
Joined: 28 Apr 2007 Posts: 21
Location: Kerry (but really a Kilkenny Cat)
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Posted: Thu May 10, 2007 5:27 pm Post subject: |
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My first solar heating panel is now complete.
I've posted annotated photos to Picasa.
http://picasaweb.google.co.uk/butler.jm/SolarWaterHeater
No water in it yet. I need a few more fittings from JRs before I connect it to a small test tank.
However, I left it out in the sun and took readings with my IR thermometer. The collector plate touched 60C after 15 minutes in the sun. The unlagged output pipe was at 35C. There is currently no insulation behind the collector.
Total cost so far is about 35 yoyos. Some of the copper pipe, all the wood and fixings are of "obtainium" thus free.
I think boiling point water is not feasible with these designs. I regard it as more of a pre-heater so that you spend less money getting the temperature of your water over the required 60C. There shouldn't be any need for 100C water in your hot water cylinder. _________________ James
http://the-goodlife.blogspot.com |
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killerflies
Joined: 11 Jul 2008 Posts: 40
Location: Galway
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Posted: Mon Aug 11, 2008 1:32 pm Post subject: |
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Any update on how that has worked for you?
Would be keen to know.
_________________ www.killerflies.com
ww.kiva.org |
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