The cylindrical ventilation cap is divided into natural ventilation and mechanical ventilation. Natural ventilation is the process of determining the main direction of wind around a building through an external autonomous wind direction finding device, and converting outdoor wind power into indoor building ventilation power, thereby eliminating the energy consumption of traditional air conditioning and ventilation systems. Mechanical ventilation is activated when there is insufficient external wind, and ventilation is carried out through energy collected from photovoltaic panels. This ventilation method reduces energy consumption to 1/5 of conventional systems, greatly reducing the cost of ventilation. At the same time, the flexible rotating hood utilizes wind energy to drive indoor ventilation and heat recovery. The system combining a hood and an absorption refrigeration system provides a solution for circulating air, improving the thermal comfort of visitors. Its hood features:
Zero energy consumption - driven by wind pressure, temperature and pressure, without the need for power supply;
Zero pollution - all physical processes without any chemical pollution;
Automatically input fresh air and simultaneously discharge carbon dioxide;
Maintain a constant temperature indoors, feeling comfortable and natural;
Maintain normal indoor humidity and enjoy coolness and smoothness.