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针对大空间建筑室内空调气流组织采用侧下送风的情况,研究了不同空气送风量和不同室外气象参数等条件下室内热环境的特性.实验结果表明,各工况下室内垂直温度分布具有良好的相似性,实验范围内最大垂直温差可达20℃,且该值随综合空气温度呈线性变化.室内上部、中部、下部3个区域的垂直温度梯度各不相同,空气送风量和室外综合温度对上部和下部区域垂直温度梯度的影响较大,对中部区域影响较小.此外,因风速较低,各工况下人员活动区域舒适性预期评价略偏高,人体头足垂直温差一般超过3℃.
In view of the situation of side air supply in large air-conditioned indoor air-conditioning system, the indoor thermal environment characteristics under different air supply rates and different outdoor weather parameters were studied. The experimental results show that the indoor vertical temperature distribution under each condition has The maximum vertical temperature difference within the experimental range is up to 20 ℃, and the value changes linearly with the temperature of the integrated air.The vertical temperature gradients of the upper, middle and lower parts of the indoor are all different, and the air supply and outdoor In addition, due to the low wind speed, the comfort assessment of the active area of people under each condition is slightly higher, and the vertical temperature difference between the head and the foot of the human body is generally lower Over 3 ℃.