Five Solar Air Heating Methods Tested

A DIY builder tested five different solar air heating panel designs, each about two square meters, to compare their efficiency at capturing solar energy for space heating. Four panels used polycarbonate glazing to enhance the greenhouse effect, with varying air flow configurations around black corrugated steel. A fifth panel used layers of black screen instead. Measured with thermocouples, the screen-based panel performed best, though results are sensitive to physical configuration. Each panel costs around $100, making it a low-cost, fuel-free heating option — though only effective during daylight hours.

Nguồn: https://hackaday.com/2026/07/04/five-solar-air-heating-methods-tested. 8sync News chỉ tóm tắt và dẫn link; bản quyền nội dung thuộc tác giả và nguồn gốc.