Air-Flow Path Design in 3-Dimensional Air-Flow Analysis for Recessed-Ceiling Type Packaged Air-Conditioning

摘要

Recessed-ceiling packaged air-conditioner marketability has been low due to unit dimensions. To make a matter easy construction, it is necessary to reduce the number of parts. We applied a turbo fan with a compact structure completely different from the current type to recessed-ceiling with 2 discharge directions. To make a compact structure, we designed a 3 dimensional air-flow path for reduction pressure loss. The results was the market's slimmest unit in the market-26percent lower in height than the current unit and with parts reduced by about 50percent We commercialized the unit.