Made from two cardboard boxes, some clear plastic wrap, and a little tape. You can build a nearly free solar dehydrator. Set it on a stool or chair and face it’s solar collector towards the sun, and you have a functional food preservation machine for little work and even less money.
Tag Archives | solar collector
Solar Geysers ~ basic information
In this sunny country, solar energy is an abundant source of renewable energy, making it an obvious choice when seeking alternative sources of energy. Solar water heating & how a Solar Geyser works Solar geysers are built on two basic principles of physics: dark coloured objects absorb heat, and hot water rises. Unlike other systems […]
Solar geyser collector types
There are two main types of collectors used in Solar Geysers: flat-plate collectors and vacuum tube collectors. A flat-plate collector has a transparent cover made of specially toughened glass, a coated metal absorber plate (coating is usually matt black paint), and a well-insulated weatherproof casing. Flat plate collectors are robust, economical, and versatile. Vacuum-tube collectors […]
