Energy consumption of large space atrium under nozzle outlet during winter season

来源期刊：中南大学学报(英文版)2009年第z1期

论文作者：赵惠忠 林志芬 陈飞 黄晨 张敏 王丽慧

文章页码：219 - 223

Key words：large space atrium； energy consumption； winter； nozzle outlet； air distributions

Abstract: Based on the thermal and velocity layer’s theory,the experimental setup was established on large space atrium under nozzle outlet. A series of winter experiments were accomplished and the following conclusions could be drawn. At the sunny day of winter in Shanghai,the thermal and velocity layer are similar. The height of the both layer is 10-30 mm,and the temperature gratitude is 5-10 ℃ /m. Decreasing the angle of the nozzle outlet can increase the layer height dramatically. The maximum temperature difference of the occupant zone has relation with the angle of the nozzle outlet. The less the angle of the nozzle outlet is set,the greater the temperature difference is. The occupant temperature differences at these angles of the nozzle outlet are 5.1-4.4 ℃. The velocity of the wind is 0.02 and 0.17 m/s and they can accord with design demand. So,it can decrease the temperature gratitude by about 30% and it can save 10%-15% energy consumption.