| 摘要 |
PURPOSE:To change the quantity of air blown off periodically by a setting changing pattern under the state, in which the quantity of temperature-regulated air from an air-supply path is kept constant, by varying the quantity of ambient air sucked by adjusting an output from an auxiliary air blower and altering the quantity of blowing-off air of a blowing-off device. CONSTITUTION:In air-conditioning facilities using large space such as in-factory air as space to be air-conditioned 1, blowing-off devices 3 for air conditioning are mounted at a plurality of every partial air-conditioning object region 2. An air conditioner 4 mixing returned air Ar returned through an air returning path 5 from the space to be air-conditioned 1 and the outside air Ao taking in through an outside-air intake path 6 and forming temperature-regulated air As is installed, and the temperature-regulated air As is forwarded to each of the blowing-off devices 3 through an air-supply path by an air-supply blower 7. Auxiliary air blowers 15 sucking ambient air Ar and mixing ambient air with temperature-regulated air As and forwarding the mixed air is set up to each blowing-off device 3. The quantity of ambient air sucked is varied by adjusting outputs from the auxiliary air blowers 15, thus periodically changing the quantity of air blown off by a setting changing pattern. |
