双层膜结构体育馆夏季热环境监测与分析

doi:10.16183/j.cnki.jsjtu.2021.259

上海交通大学学报 ›› 2023, Vol. 57 ›› Issue (2): 183-193.doi: 10.16183/j.cnki.jsjtu.2021.259

所属专题：《上海交通大学学报》2023年“船舶海洋与建筑工程”专题

双层膜结构体育馆夏季热环境监测与分析

宋寅搏¹, 阴悦¹, 闫勇升¹, 王晓情¹, 陈务军¹(), 任思杰²

1.上海交通大学空间结构研究中心,上海 200240
2.上海海勃膜结构有限公司, 上海 200240

收稿日期:2021-07-12 修回日期:2021-11-08 接受日期:2021-12-16 出版日期:2023-02-28 发布日期:2023-03-01
通讯作者: 陈务军 E-mail:cwj@sjtu.edu.cn.
作者简介:宋寅搏(1998-),硕士生,从事膜结构设计与织物膜材力学性能研究.
基金资助:
国家自然科学基金项目(51778362);国家自然科学基金项目(51608320)

Thermal Environment Monitoring and Analysis of an Enclosed Gymnasium with Double-Layered Membrane Roof in Summer

SONG Yinbo¹, YIN Yue¹, YAN Yongsheng¹, WANG Xiaoqing¹, CHEN Wujun¹(), REN Sijie²

1. Space Structures Research Center, Shanghai Jiao Tong University, Shanghai 200240, China
2. Shanghai Haibo Membrane Structure Co., Ltd., Shanghai 200240, China

Received:2021-07-12 Revised:2021-11-08 Accepted:2021-12-16 Online:2023-02-28 Published:2023-03-01
Contact: CHEN Wujun E-mail:cwj@sjtu.edu.cn.

摘要/Abstract

摘要：

膜结构屋面因其对自然光源的充分利用和形式灵活等优势而在体育场馆等大跨度建筑中广泛应用,为解决其保温隔热性能差、易受外界环境因素影响等突出问题,多层膜结构设计、铺设保温层等方案被应用于工程实践,但热环境监测及分析的相关研究仍存在空白.为了研究双层聚四氟乙烯-气凝胶屋面体育馆的热环境,多点均匀布置测温仪进行监测,利用实测数据构建整体温度场;建立能够准确反映温度场变化的热物理模型,平均误差小于5%;以屋面保温层铺设为变量,基于该模型(原始工况)构建了无保温层、仅岩棉保温层和全为气凝胶保温层3种工况.对比发现,气凝胶的铺设使得室内空间的平均温度降低了2.0 ℃;原始工况的保温隔热效果最佳,室内外平均温差为9.6 ℃,研究可为膜结构屋面的保温隔热设计提供参考.

关键词: 膜结构, 热环境, 封闭式体育馆, 气凝胶

Abstract:

The membrane structure roof is widely used in large-span buildings such as stadiums and gymnasiums because of its full use of natural light sources and flexible forms. In order to solve the prominent problems such as poor thermal insulation performance and prone to external environmental factors, the multi-layer membrane structure design, laying of insulation layers, and other schemes are applied to engineering practice. However, there is still a gap in the relevant research of thermal environment monitoring and analysis. In order to study the thermal environment of the double-layer PTFE (polytetrafluoroethylene)-aerogel roof, multi-point thermometers were uniformly arranged to monitor, and the overall temperature field was constructed using the measured data. A thermophysical model which could accurately reflect the change of temperature field was established, whose average error was less than 5%. With the laying of roof insulation layer as the variable, three working conditions, i.e., no insulation layer, only rock wool insulation layer, and all aerogel insulation layer were constructed based on the model. The comparison indicates that the laying of aerogel reduces the average temperature of indoor space by 2.0 ℃, the original working condition has the best thermal insulation effect, and the average temperature difference between indoor and outdoor is 9.6 ℃. This paper can provide reference for the thermal insulation design of membrane structure roofs.

Key words: membrane structure, thermal environment, enclosed gymnasium, aerogel

中图分类号:

TU111

宋寅搏, 阴悦, 闫勇升, 王晓情, 陈务军, 任思杰. 双层膜结构体育馆夏季热环境监测与分析[J]. 上海交通大学学报, 2023, 57(2): 183-193.

SONG Yinbo, YIN Yue, YAN Yongsheng, WANG Xiaoqing, CHEN Wujun, REN Sijie. Thermal Environment Monitoring and Analysis of an Enclosed Gymnasium with Double-Layered Membrane Roof in Summer[J]. Journal of Shanghai Jiao Tong University, 2023, 57(2): 183-193.

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参考文献 15

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材料	厚度/mm	密度/(kg·m^-3)	恒压热容/(kJ·kg^-1·K^-1)	导热系数/(W·m^-1·K^-1)	透光率/%
外层PTFE膜	0.8	1624.850	1.05	0.256	13
空气	4000.0	1.185	1.01	0.026	100
气凝胶	4.0	165.246	0.55	0.020	70
岩棉	150.0	120.470	1.22	0.038	0
内层PTFE膜	0.3	1200.000	1.05	0.121	28

测点组	误差平均值/℃	相对误差平均值/%	最大误差值/℃	最大相对误差值/%	相对误差<5%的时间段占比/%	相对误差>5%的主要时间段
外膜	1.5	3.9	5.9	14.3	76.2	15:30—18:00
内膜	1.1	2.9	2.2	6.3	86.1	16:30—18:00
室内	0.5	0.4	1.1	3.4	100.0

工况	阻热材料	外膜平均温度	内膜平均温度	看台平均温度	室内外温差
原始工况	72%岩棉和28%气凝胶	42.3	35.4	32.7	9.6
工况1	0%岩棉和0%气凝胶	41.9	39.6	33.2	5.5
工况2	72%岩棉和0%气凝胶	42.0	39.1	33.0	6.0
工况3	0%岩棉和100%气凝胶	42.4	36.4	33.4	7.5

双层膜结构体育馆夏季热环境监测与分析

Thermal Environment Monitoring and Analysis of an Enclosed Gymnasium with Double-Layered Membrane Roof in Summer

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