Cooling System in Indoor Open Spaces by Using Cool Runing Water Surface

1)冷却水对热环境的改善效果选择地下空间作为试验空间。原因是我们可以在这样的空间里看到很多水边。通过数值分析，对水边水温控制的效果进行了评价。(1)水循环系统和空气循环系统可采用冷却自来水系统组合使用。(2)热和物质平衡可以用流水来模拟。(3)控制水温，白天相对湿度降低5%。(4)采用冷自来水，可减少上午的热负荷。2)水边气流分布，如模型实验在实际尺寸的模型中测量温度和气流分布。然后，计算热量和物质传递系数。(1)利用能指示辐射温度的相机测量了瀑布表面温度特征。(2)识别了瀑布盆地水汽压分布。(3)边缘湍流强度大于内部湍流强度。

1) Improvement Effects of Thermal Environment by Using Cool Running WaterThe underground spaces as the test space were selected. The reason is that we can see a lot of waterside in such spaces. The effect by controlling water temperature in watersides was evaluated from the results by numerical analysis.(1) The water circulation system and the air circulation system can be combined by using cool running water system. (2) Heat and Substance balance can be modeled on the runing water. (3) The relative humidity decrease 5% in the daytime if controlled water temperature. (4) The thermal load in the morning can be reduced by using cool runing water.2) Airflow Distributions around the Watersides such as Model ExperimentThe temperature and airflow distributions were measured in the actual-sized models. After that, heat and substance transfer coefficient were estimated.(1) The characteeristics of waterfall surface temperature were measured by using the camera that can indicate radiation temperature. (2) We recognized the distribution of vapor pressure at the basin of waterfall. (3) The turbulent intensity around the edge was stronger than that of inner part.