外遮阳阵列风热遮蔽效应及其热工特性表征研究

批准号:
52008348
项目类别:
青年科学基金项目
资助金额:
24.0 万元
负责人:
蒋福建
依托单位:
学科分类:
建筑物理
结题年份:
2023
批准年份:
2020
项目状态:
已结题
项目参与者:
蒋福建
国基评审专家1V1指导 中标率高出同行96.8%
结合最新热点,提供专业选题建议
深度指导申报书撰写,确保创新可行
指导项目中标800+,快速提高中标率
微信扫码咨询
中文摘要
建筑一体化设计施工需求催生出越来越多阵列排布的外遮阳系统,其在立面尺度引发的风热遮蔽效应不容忽视。阵列的围合形态与非均一界面性质共同限制了太阳/长波辐射的传输,所形成的连续、小尺度半封闭腔体则会影响立面绕流的发展。若无法于热工计算中准确表征以上改变,阵列覆盖下的建筑冷热负荷预测精度便难以保证。因此,本项目拟以现场实测、模型实验和数值计算相结合的方法,开展对外遮阳阵列遮蔽效应及其热工特性的相关研究。在建立并验证立面风热微环境数理分析模型的基础上,探明建筑周边流场和表面辐射场自构件单元至立面整体的发展情况,提炼外界面换热系数和风压系数等热过程表征量的变化规律,并量化其与遮阳阵列物性特征参数间的映射响应关系,以之修正用于表征建筑得热、通风等过程的热工指标。项目拟从外部风热微环境变化的新角度深入揭示外遮阳阵列对建筑热过程的影响,完善围护结构热工分析理论,可为一体化外遮阳技术的正确推行提供理论支撑。
英文摘要
The requirement of building integration in design and construction in modern civilization propels the development of external sun-shading system with array configuration. The solar/infrared radiation is synchronously restricted by the array as its enclosed form and non-uniform interface characters, meanwhile, the evolution of façade-around flow is influenced under the semi-closed cavity formed by the array. If these variations can not be accurately interpreted, it will be difficult to accurately predict the heating/cooling load of a building with exterior shading arrays. Therefore, this project aims at adopting field measurement, scale model test and numerical calculation to investigate the shelter effect of the exterior shading arrays and its thermal characteristics. The simulation model to describe wind and thermal environment around the building façade will be established first. Then the development of the flow/radiation field around the building will be explored from shading device unit to the entire façade. Then the regularity of thermal characteristic values such as convective/radiatiive heat transfer coefficient and wind-pressure coefficient will be illustrated, and the correlations between these values and the physical property parameters of the shading arrays can be summarized to modify the thermal performance indexes to describe buildings’ heat gain/loss and ventilation. Therefore, the influence of shading device arrays on the load and energy consumption of HVA&C system could be precisely predicted. The project revealed how the exterior shading device influences building thermal process from a novel perspective: the variation of outside wind and thermal microenvironment, which completed the thermal performance analysis theory of the building envelope. The results can provide theoretical support for the application of building integrated external shading technology.
期刊论文列表
专著列表
科研奖励列表
会议论文列表
专利列表
DOI:10.3390/buildings12081096
发表时间:2022-07
期刊:Buildings
影响因子:3.8
作者:Rongjiang Ma;Shi-qun Tao;Zhengrong Li;Yanping Yuan;Fujian Jiang
通讯作者:Rongjiang Ma;Shi-qun Tao;Zhengrong Li;Yanping Yuan;Fujian Jiang
DOI:10.1016/j.buildenv.2023.110611
发表时间:2023-08
期刊:Building and Environment
影响因子:7.4
作者:Shi Tao;Nanyang Yu;Fujian Jiang;Xiaowen Su;K. Zhao
通讯作者:Shi Tao;Nanyang Yu;Fujian Jiang;Xiaowen Su;K. Zhao
DOI:10.1016/j.jobe.2022.105420
发表时间:2022-11
期刊:Journal of Building Engineering
影响因子:6.4
作者:Shi Tao;Nanyang Yu;Zhengtao Ai;K. Zhao;Fujian Jiang
通讯作者:Shi Tao;Nanyang Yu;Zhengtao Ai;K. Zhao;Fujian Jiang
DOI:10.2139/ssrn.4188691
发表时间:2023
期刊:Social Science Electronic Publishing
影响因子:--
作者:Kaijie Zheng;Fujian Jiang;EMMANUEL BISENGIMANA;Kaiming Zhao;Yanping Yuan
通讯作者:Yanping Yuan
DOI:10.1016/j.jobe.2022.104614
发表时间:2022-05-21
期刊:JOURNAL OF BUILDING ENGINEERING
影响因子:6.4
作者:Jiang, Fujian;Tao, Shiwen;Zheng, Jianwen
通讯作者:Zheng, Jianwen
地铁站房跨地层围合岩土中长期热累积效应及其热工表征方法
- 批准号:52378112
- 项目类别:面上项目
- 资助金额:50万元
- 批准年份:2023
- 负责人:蒋福建
- 依托单位:
国内基金
海外基金
