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Energy consumption of large space atrium under nozzle outlet during winter season 被引量:1

Energy consumption of large space atrium under nozzle outlet during winter season
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摘要 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. 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.
出处 《Journal of Central South University》 SCIE EI CAS 2009年第S1期219-223,共5页 中南大学学报(英文版)
基金 Project(09YZ229) supported by Innovation Program of Shanghai Municipal Education Commission, China Project(J50502) supported by Leading Academic Discipline of Shanghai Municipal Education Commission,China Project(50478113) supported by the National Natural Science Foundation of China Project(2006BAJ02A05) supported by the National Key Technology R&D Program,China Project(08DZ1203600) supported by the Shanghai Municipal Sciences and Technology Committee,China
关键词 large space ATRIUM energy consumption WINTER NOZZLE OUTLET air DISTRIBUTIONS large space atrium energy consumption winter nozzle outlet air distributions
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