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O MidKnight
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« on: May 01, 2008, 05:54:05 PM » |
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Total flow and return pipe work of approximately 54 metres in 10mm copper tube. 20 vacuum tubes and some old flat plate panels. 1200 x 450mm non solar dedicated twin coil cylinder (slightly more capacity and slightly less efficient heat exchange). Panels facing due panels situated on Salisbury Plain, Wiltshire
1st
Sunny and showery day
Sensor 200mm from top of cylinder Start 39C finish 55C
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« Last Edit: March 06, 2010, 10:03:17 AM by Paulh_Boats »
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Solar heating - makes you feel good when you open the hot tap and when you look at your heating bill
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Ivan
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« Reply #1 on: May 01, 2008, 07:15:16 PM » |
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At last, after disappointment in April, my 260litre tank has finally reached 55C from top to bottom today.
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ajstoneservices
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« Reply #2 on: May 01, 2008, 07:16:42 PM » |
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Mine too  |
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Paulh_Boats
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« Reply #3 on: May 01, 2008, 11:35:32 PM » |
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74C top, 70C middle. Retro-coils.. I luv em. However the temps have now cooled to 71.5/67 so need more insulation in case the sun don't shine tomorrow. (30 tubes/120L) |
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O MidKnight
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« Reply #4 on: May 02, 2008, 08:20:29 PM » |
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Retro yes - like it as well as a twin coil Great - Ivan remember you are heating more water than me
Total flow and return pipe work of approximately 54 metres in 10mm copper tube. 20 vacuum tubes and some old flat plate panels. 1200 x 450mm non solar dedicated twin coil cylinder (slightly more capacity and slightly less efficient heat exchange). Panels facing due panels situated on Salisbury Plain, Wiltshire
2nd
Sunny and showery day
Sensor 200mm from top of cylinder Start 38C finish 55C 1 litre water used between srart and finish
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Solar heating - makes you feel good when you open the hot tap and when you look at your heating bill
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Ivan
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« Reply #5 on: May 02, 2008, 09:12:02 PM » |
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Yes, and I guess we use a lot of hot water too. Today, despite an overcast morning, we did get some sunshine mid afternoon, - enough to heat the tank from top to bottom to 53C.
I wonder how hot Paul can go?!
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O MidKnight
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« Reply #6 on: May 03, 2008, 06:16:41 PM » |
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Total flow and return pipe work of approximately 54 metres in 10mm copper tube. 20 vacuum tubes and some old flat plate panels. 1200 x 450mm non solar dedicated twin coil cylinder (slightly more capacity and slightly less efficient heat exchange). Panels facing due panels situated on Salisbury Plain, Wiltshire
3rd
Sunny and cloudyday
Sensor 200mm from top of cylinder Start 39C finish 61C 2 litre water used between srart and finish
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Solar heating - makes you feel good when you open the hot tap and when you look at your heating bill
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Ivan
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« Reply #7 on: May 04, 2008, 11:51:49 PM » |
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Dull, overcast all day, but quite warm. Bottom of tank reached 40C by end of day.
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O MidKnight
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« Reply #8 on: May 06, 2008, 01:58:45 PM » |
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Total flow and return pipe work of approximately 54 metres in 10mm copper tube. 20 vacuum tubes and some old flat plate panels. 1200 x 450mm non solar dedicated twin coil cylinder (slightly more capacity and slightly less efficient heat exchange). Panels facing due panels situated on Salisbury Plain, Wiltshire
6th May Sunny day
Sensor 200mm from top of cylinder Start 43C finish 65C 2 litres water used between start and finish
Heat dump radiator in use from about 13.00 hours
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Solar heating - makes you feel good when you open the hot tap and when you look at your heating bill
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ajstoneservices
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« Reply #9 on: May 06, 2008, 06:16:13 PM » |
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Warm and bright today for a change 40 tubes S/W facing 250lt unvented 75c top and bottom  |
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Nicedad
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« Reply #10 on: May 06, 2008, 07:48:14 PM » |
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Good sunshine all day,
Solar dump cut in at 16.20 (67.5C). Bath run at 17.00. Top of cylinder temp at 19.45 61.5C.
Filsol 1.6 sqm x 2
170l cylinder
Pipework 15mm
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Paulh_Boats
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« Reply #11 on: May 06, 2008, 07:58:50 PM » |
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30 tubes, 120L Top/middle 39.5C / 35C at 8am 82.5C / 78C at 7pm ! Yikes - shower time! If only I could sell my hot water to the Russians...  |
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Flamethrower_
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« Reply #12 on: May 06, 2008, 08:05:07 PM » |
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Good Sunny day today.
west facing 30 58mm tube collector, 210 litrecylinder temperature @ 20.00pm 62oC
at 7.00 a.m cylinder was 43oC
no boiler in operation.
Rob
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Flamethrower_
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« Reply #13 on: May 06, 2008, 08:14:43 PM » |
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Paul what way does your collector face ?
and what size are your tubes i.e. 47mm or 58mm ?
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Paulh_Boats
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« Reply #14 on: May 06, 2008, 08:25:51 PM » |
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Paul what way does your collector face ?
and what size are your tubes i.e. 47mm or 58mm ?
47mm tubes about 140 degrees or slightly East of South-East. The significant factor is my low volume tank, 120L. If yours was 120L you would get a similar temperature rise to mine (half volume, double temp rise). If effect we captured roughly the same amount of energy. Lots!!! cheers Paul |
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