| 摘要 |
<p>All the components of the ventilation unit are housed in a rectangular casing and include an inlet fan (12), exhaust fan (13), heater battery (16) and, if required, a filter unit. Exterior fresh air is supplied to the room and vitiated air is extracted from an intake at ceiling level. - The vitiated air is passed through one section (15'') of a regenerative heat exchanger (15) whose mass is thus heated, whilst the incoming air flow passes over the second section (15'), heated during the previous cycle. The direction of air flows over the heat exchanger is periodically reVersed by rotation of a paddle damper (20).</p> |
