SPECTRUM ANALYSIS OF AIR VELOCITY AND PREFERENCE OF BREEZE IN A NATURALLY VENTILATED ROOM IN SUMMER
1994 Volume 59 Issue 461 Pages 51-59
Details
1994 Volume 59 Issue 461 Pages 51-59
In summer, when mean air velocities were 0.2〜0.3(m/s), indoor velocities were measured for spectrum analysis and comfort votes were taken for air-conditioning, natural ventilation, and ventilation with air-conditioners running. The results were following. (1)For natural ventilation, occupants felt most natural and comfortable, though half of the spectra were characteristic of 1/f^2. (2)For another half and all of the ventilation with air-conditioners running, spectra were characteristic of Lorentz, though coefficients of variance of the wind were 60〜70%, which differs from former researches for air-conditioning.
