EXPERIMENTAL STUDY TO THE PERFORMANCE OF THE DISPLACEMENT VENTILATION UNDER DIFFERENT OPERATION CONDITIONS

The present study presents the experimental study of performance of the displacement ventilation . The experimental study included the effect of different internal loads of (1600,1300and 1000)W , different supplied air temperatures of ( 18,20,22and 24)?C and different supplied air velocities (0.75,1,1.25 and 1.45)m/s on the performance of displacement ventilation . The experimental results show that the cooling capacity of air increases as the temperature of supplied air decreases. At a increases in temperature of supplied air by (33.33)%,the cooling capacity of air decreases by (23.52, 24.05 and 20.63)% for internal load of (1600,1300 and 1000 )W respectively .While as supplied air velocity increases ,the cooling capacity of air increases .At supplied air increases by (93.33)% ,the cooling capacity increase by (33.61, 39.23 and 36.8 )% for internal load of (1600, 1300 and 1000)W respectively.