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Post by Admin on Jul 14, 2008 15:07:11 GMT
What do you think?
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Post by Bill on Jul 20, 2008 14:30:54 GMT
Solar Heating Systems Evacuated Tube Solar Hot Water Panel (20 & 30 tube)
Solar heating systemsThese top-of-the-range solar panel heat collectors are suitable for heating domestic hot water, swimming pools etc - even in the winter! One unit is adequate for an average household (3-4people), and it is modular, so you can add more if required. A single panel is sufficient for a 200litre cylinder, but you can fit 2 or more for high water usage, or for heating swimming pools or underfloor heating. Some types of renewable energy are only available in certain locations, however free solar heating is potentially available to almost every house in the UK! Every house should have one -really! And with an overall efficiency of almost 80%, they are much more efficient than electric photovoltaic solar panels (efficiency of 7-15%). And if we compare them on a like-for-like basis, the price of a Homeflair Solar Water Heater is around 30p/watt (compared to £6+/watt for solar photovoltaics!) The Evacuated 10 Tube High Efficiency Solar Panel
10 tube solar panelIn addition to our 20 tube panel we also supply the 10 tube high efficiency panel.
The vacuum tube solar panel has been around for over 10years, and has proved to be reliable and dependable. How it Works
The vacuum tubes consist of a double wall glass tube (made from strong borosilicate glass ie pyrex) with a space in the centre which contains the heat pipe.
The sun's radiation is absorbed by the selective coating on the inner glass surface, but prevented from re-radiating by the silvered innermost lining. This is in effect like a one-way mirror which has been optimised for infra-red radiation. In fact it is very efficient, of the sun light's energy hitting the tube's surface, 93% is absorbed, whereas only 7% is lost through reflection and re-emission.
The presence of the vacuum wall prevents any losses by conduction or convection - just like a thermos flask. Because of this, the system will work even in very low temperatures, unlike traditional flat plate collectors. This is why our system can be used to heat up water at the South Pole Antarctic Science Base - where ambient air temperatures can drop below -40oc.
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Post by guest on Jul 20, 2008 15:20:24 GMT
Alot there Billy
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