抄録
The purpose of this study was to accurately evaluate the effect of air-conditioner vane angle on ventilation effectiveness. First, the air flow rate of the air-conditioner was measured in conjunction with the vane angle using a balometer. Then, the turbulence characteristics of the outlet of the air-conditioner were measured using a hot-wire anemometer and the air distribution was measured by two-dimensional particle image velocimetry (PIV). Finally, computational fluid dynamics (CFD) was used to determine ventilation effectiveness within the room, depending on the position of the air-conditioner and the angle of the left-right louvers. The results showed that when the louvers were set at the mid-position rather than the left-position or the right-position, the air flow rate was increased by 19.020.9 % in high air flow rate mode. The turbulent kinetic energy measured in high air flow rate mode was 0.82m^2/s^2 and the turbulent dissipation rate was 8.48m^2/s^3. Furthermore, according to the simulation results, when the air-conditioner was installed in the center of the wall, indoor ventilation effectiveness was also increased.
