###
气象:2019,45(8):1149-1157
本文二维码信息
码上扫一扫!
随机玻璃-聚合物混合超材料屋顶对南京夏季降温效应的模拟分析
王豫,王咏薇,赵小艳,郭良辰,张艳晴
(中国气象局乌鲁木齐沙漠气象研究所,乌鲁木齐 830002; 耶鲁大学-南京信息工程大学大气环境中心,南京 210044)
Simulation Analysis of Cooling Effect of Randomized Glass-Polymer Hybrid Metamaterial Roof in Nanjing During Summer
WANG Yu,WANG Yongwei,ZHAO Xiaoyan,GUO Liangchen,ZHANG Yanqing
(Institute of Desert Meteorology, CMA, Urumqi 830002; Yale-NUIST Center on Atmospheric Environment, Nanjing University of Information Science and Technology, Nanjing 210044)
摘要
图/表
参考文献
相似文献
本文已被:浏览 24次   下载 35
投稿时间:2018-04-20    修订日期:2019-01-25
中文摘要: 为缓解南京夏季城市热环境危机,利用天气研究和预报模式(WRF),模拟了3类屋顶(普通屋顶、高反照率屋顶、随机玻璃-聚合物混合超材料屋顶)对南京夏季高温天气的影响。结果表明:(1)冷却屋顶(高反照率屋顶和随机玻璃-聚合物混合超材料屋顶)均可通过削弱到达城市表面的太阳辐射而使城市降温,随机玻璃-聚合物混合超材料屋顶白天平均降温为0.8~1.2℃,夜间平均降温为0.2~0.4℃,高反照率屋顶白天平均降温为0.6~0.8℃,夜间平均降温为0.2℃;(2)表面温度指数可表征冷却屋顶的热力性能,随机玻璃-聚合物混合超材料屋顶的表面温度指数为0.16~0.43,高反照率屋顶的表面温度指数为0.05~0.26,表明随机玻璃-聚合物混合超材料屋顶的冷却效果强于高反照率屋顶;(3)高反照率屋顶和随机玻璃-聚合物混合超材料屋顶分别能将36.7%和 47.1%的太阳短波辐射返回到大气层,分别比普通屋顶少吸收19.6%和34.8%的热量。
Abstract:To alleviate the crisis of urban thermal environment of Nanjing, the Weather Research and Forecasting Model (WRF) was uesd to simulate the effects of three types of roofs (conventional roof, high albedo roof and randomized glass-polymer hybrid metamaterial roof) during the extreme high temperature weather in Nanjing in 1-31 July 2017. The results showed that (1) cooling roofs (like high albedo roof and randomized glass-polymer hybrid metamaterial roof) can reduce the temperature of cities by weakening the solar radiation reaching the surface of the city. During the daytime, the average temperature of randomized glass-polymer hybrid metamaterial roof drops by 0.8-1.2℃, and the average temperature decreases 0.2-0.4℃ in the nighttime. The average temperature of the high albedol roof drops by 0.6-0.8℃ during the day and decreases 0.2℃ at night. (2) The surface temperature index can be used to characterize the thermal performance of the cooling roof. The surface temperature index of the randomized glass-polymer hybrid metamaterial roof is 0.16-0.43. The surface temperature index of the high albedo roof is 0.05-0.26, indicating that the cooling effect of the randomized glass-polymer hybrid metamaterial roof is stronger than the high albedo roof. (3) The high albedo roof and the randomized glass-polymer hybrid metamaterial roof can return 36.7% and 47.1% of the solar short-wave radiation respectively. The atmosphere absorbs heat 19.6% less and 34.8% less than conventional roof.
文章编号:     中图分类号:    文献标志码:
基金项目:国家自然科学基金项目(41675016)、教育部长江学者和创新团队发展计划项目(PCSIRT)、江苏高校优势学科建设工程项目(PAPD)和中国科学院大气物理研究所大气边界层物理与大气化学国家重点实验室开放课题(LAPC-KF-2017-09)共同资助
引用文本:
王豫,王咏薇,赵小艳,郭良辰,张艳晴,2019.随机玻璃-聚合物混合超材料屋顶对南京夏季降温效应的模拟分析[J].气象,45(8):1149-1157.
WANG Yu,WANG Yongwei,ZHAO Xiaoyan,GUO Liangchen,ZHANG Yanqing,2019.Simulation Analysis of Cooling Effect of Randomized Glass-Polymer Hybrid Metamaterial Roof in Nanjing During Summer[J].Meteor Mon,45(8):1149-1157.