I bought a 15 foot pool this summer and got two of these mats and they make a huge difference. We're only 2 days in and I can noticeably tell the difference!!!
excellent demonstration. this works and everyone should have use of this old skool , no moving parts and reliability. i have seen one work in the snow on a cloudy day. it achieved blowing off thru the tprv.
Between the horrific music and the stunningly bad video quality, I couldn't watch it. Just not worth it, no matter what information might have been contained. 11 seconds was more than enough pain for me.
Thermosiphon flow is powered in part by gravity(density changes interacting with gravity cause movement). Because of this the areas where energy is being added to cause the density change need to be as vertical as possible to cause movement. Up on the hot side, down on the cool. Your rig here is mostly horizontal so very little flow...
Thank you Alex Kee for going to the trouble of constructing a visual display of the principles involved. My apology for those commenters who decide to display their lack of civility and respect for the opinion of others...Welcome to "New America"!
+lickitysplit roberts Yeah this isn't the efficient way to do thermosiphon. The storage tank should be higher than the solar collector. This is just an easy way to show how it works, which the person accomplished.
This is a flat plate-solar thermos tubes hybrid. The inlet to the panel is from the bottom (and cooler part) and the outlet, the warmer part of the common insulated water tank via differential thermal water stratification dynamics.
Isn't the inlet to the panel supposed to be at the bottom of the panel and the outlet at the top, or are the tubes connected in a winding s like fashion?
The tubes appear to have heat pipes inside them, so the water is only flowing along a header near the styrofoam tank. The tubes themselves don't have any water flowing inside them at all.
