Yes I am not a professional engineer. Im with this community trying to help.people livong in.poor village with no supply of hot water. Yeah.i miswrote that, it should be dark/black surface.
what do you think is the “wheel ” for my situation
Hey guys I'm trying to build such a solar heating system that it is drum with two layers, inner one is a metal (aluminium alloy I'm thinking) water container and outer layer is made of polymer, with air gap in-between. When suns come out, it radiates through the polymer and on the metal layer...
