天窗采光的地下综合交通枢纽光热环境实测
Light and thermal environment measurement of underground comprehensive transportation hub with skylight lighting
摘要：
为研究地下综合交通枢纽天窗设置对于内部光热环境的影响，对深圳市福田地下综合交通枢纽天窗区域进行了为期3天的光热环境测试，分析了天窗采光区域照度、空气温度、壁面温度和黑球温度随时间的变化。结果表明：地下综合交通枢纽天窗采光效果受天气状况和室外遮挡影响较大，且大部分时间无法达到标准照度值(300 lx)的要求，但在太阳辐照度较大的时间内应采取适当的遮阳措施以避免眩光影响；天窗采光区域和人工照明区域一天之内平均温度的最大差值在晴天和阴天分别为0.3 ℃和0.4 ℃，平均黑球温度与平均空气温度的差值在晴天和阴天分别为0.5 ℃和0.2 ℃，深圳冬季太阳辐射对于天窗下人体的热感觉影响较小。
Abstract：
In order to study the influence of skylight in the underground comprehensive transportation hub on the internal light and thermal environment, a three-day light and thermal environment test is conducted in the skylight lighting area of Futian underground comprehensive transportation hub in Shenzhen. The changes of illuminance, air temperature, wall temperature and globe temperature of the skylight lighting area with time are analysed. The results show that the skylight lighting effect of underground comprehensive transportation hub is greatly affected by weather conditions and outdoor shelter, and it cannot meet the standard illumination value of 300 lx most of the time. When the solar radiation intensity is high, appropriate shading measures should be taken to avoid glare. The maximum difference of average temperature between skylight lighting area and artificial lighting area in one day is 0.3 ℃ and 0.4 ℃ on sunny and cloudy days respectively, and the difference between average black ball temperature and average air temperature is 0.5 ℃ and 0.2 ℃ on sunny and cloudy days respectively. Therefore, the solar radiation in winter in Shenzhen has little effect on the thermal sensation of human body under the skylight.
Keywords:undergroundcomprehensivetransportationhub;skylightlighting;lightenvironment;thermalenvironment;fieldmeasurement