ABSTRACT
One of the best solar applications is air heating for industrial buildings. Their typical one-storey geometry with an expansive, often poorly insulated roof leads to substantial space heating needs. Many solar air heaters to supply tempered fresh air have proved cost-effective today. Distribution ducting below the ceiling can be added to supply fresh air throughout the entire building and in the process will destratify any ceiling heat that may accumulate, achieving additional energy savings. These additional energy savings from destratification can equal the solar savings. The Bombardier factory and the USA Army hangar are excellent examples where this has been applied. The air collector is single-glazed with air underflow. It has a corrugated aluminium absorber and a selective surface. The fan is controlled according to room and collector temperatures. The MF-panel serves both as a solar air collector and as a heat exchanger between exhaust and fresh air.
