| 摘要 |
PURPOSE: A rectangular hot water supplier tracing solar heat is provided to reduce the cost for fuel by producing hot water using solar heat. CONSTITUTION: A rectangular hot water supplier has a radiator installed on the focus of a 7cm rectangular concave lens having 24.5cm of focal distance. Herein, the device traces the sun by every 5 minutes and heats the air. The heated air is not vented out and heats water. Thereby, hot water over 80°C of temperature by 1000 liter every day and the hot water is used for a boiler for houses or for agriculture. |
