Suitable. Evacuated tube collectors also have better thermal msulation in comparison with the flat plate collectors.
Evacuated tubes consist of two concentric glass tubes that are sealed at the ends and the inner tube is coated with a solar selective coating. High vacuum is produced between
the two tubes, thus eliminating convection loss and providing excellent thermal insulation. When the tube is exposed
to the sun, the solar selective coating absorbs the solar energy and transfers it to a heat pipe that is located inside
the inner tube. The heat pipe contains a heat transfer fluid
(typically water or ethylene glycol) that transfers the heat
to the system's manifold. The liquid m the heat pipe has a low boiling point, so when it is heated, the liquid inside