| 摘要 |
A drying hay storage with active hay ventilation and air heating by sunbeams includes side walls, a roof, an air duct, fans, a well, an underground air duct, underground air channels, floor air channels. The side walls and roof of the hay storage have the outer case from blackened corrugated tin and the internal case of heat-insulating material, a space for air passage therebetween. |
