A layer of heat resistant black paint (motorcycle spoke) An air inlet hole at the bottom right and a hot air outlet hole at the top left. Thibault Hi tibofo The color black only absorbs the energy of visible light, The metal will reverberate the infrared, which makes about 1 ...

Hello, I have built a solar thermal collector made from cans. He walks decently. Yesterday on a mausaded day (Normandy), gray with some clearings, I got a peak of output at 68 ° against around 19 ° at the entry. Now I want to propel this hot air into a channel ...

Hi Integration and Perfs Improvement of Solar Panels Hi Flytox! Basically, this well-insulated house could be heated "comfortably" with wood (a few cubic meters per year) + an electric frost protection, and even less if you add a little solar .. For the DHW, a collector p ...

The low-emissivity double glazing they are talking about is the new double glazing that has thin layers of ???, and it's new, and the level of insulation is much higher than the old glazing. The price ? haye, haye https://www.econologie.info/smileys/m_dead.gif Hello to remember: all bodies emit ...

Hello everyone The magnetic effect on a fluid is related to its displacement or vice versa! make a 10cm loop in the circuit of the hose, install a 10cm disc with permanent magnets, put it in rotation at 5.000, 10.000 or 20.000 revolutions / minute you will obtain a ...