Conventional simple flat-plate solar collectors were
developed for use in sunny and warm climates. Their
benefits however are greatly reduced when conditions
become unfavourable during cold, cloudy and windy days.
Furthermore, weathering influences such as condensation
and moisture will cause early deterioration of internal
materials resulting in reduced performance and system
failure. Evacuated heat pipe solar collectors (tubes) operate
differently than the other collectors available on the market.
These solar collectors consist of a heat pipe inside a
vacuum-sealed tube,