Marquee with solar heating system - has heat accumulator formed by pipe laid in earth below, and pump for heat transfer medium circulation

摘要

The marquee has a solar heating system with heat-exchanger, heat-accumulator, and pump (8) for circulating the heat-transfer medium. The accumulator (109) comprises the earth (110) below the marquee and a pipe system (111) laid directly in it, connected to the heat exchanger (7) so as to form a closed circuit. The piping can be enclosed in a box of heat-insulating material (12) and can be laid on plates (114) of such material extending for its entire length. The box can be closed at the top by heat-insulating material, with a layer of earth between the latter and the marquee floor.