太阳光谱对气凝胶玻璃光热性能的影响
Influence of Solar Spectrum on Photothermal Properties of Aerogel Glass
刘洋 1齐宏 1胡张保 1严佳敏 1陈友明2
作者信息
- 1. 郑州轻工业大学建筑环境工程学院,郑州 450002
- 2. 湖南大学土木工程学院,长沙 410082
- 折叠
摘要
研究一种可以准确模拟多层半透明体系太阳辐射透过率的方法,该方法考虑了不同层材料的光谱性能差异以及入射角变化的影响,建立光谱模型并在实验室条件下和真实工况下验证模型的准确性.通过实验验证,光谱计算模型模拟结果和实验结果吻合度较好,实验室条件下,光谱模型与实验结果平均相对误差为1.723％,纳什系数为0.686,精确度比传统模型提高46.284％;真实工况下,光谱模型计算的室内得热量与实验结果的纳什系数为0.989,均方根误差为11.14 W/m2,而传统模型模拟结果与实验结果误差较大,两者间纳什系数为0.763,均方根误差为51.23W/m2.将该模型与传统模型在不同地区不同朝向进行得热量对比分析,结果表明在哈尔滨、昆明和北京地区,传统模型高估了气凝胶玻璃的节能潜力;在广州和长沙地区,传统模型低估了气凝胶玻璃的节能潜力.
Abstract
This paper explored a method that can accurately simulate the solar radiation transmittance of multilayer translucent systems,which considers the difference in spectral properties of different layers of materials and the influence of incident angle change.A spectral model was built with its accuracy verified under laboratory conditions and real working conditions.The experimental results show that the simulation results of the spectral calculation model are in good agreement with the experimental results.Under the laboratory conditions,the average relative error between the spectral model and the experimental results is 1.723％,and the Nash coefficient is 0.686,realizing a 46.284％higher accuracy than that calculated by the spectral model.Under real working conditions,the Nash coefficient of the indoor heat gain calculated by the spectral model and the experimental results is 0.989,with a root mean square error of 11.14 W/m2,while the simulation results of the traditional model have a large error with the Nash coefficient of 0.763 and the root mean square error of 51.23 W/m2.The comparative analysis of heat gain between the model and the traditional model in different areas,and directions shows that the traditional model overestimates the energy-saving potential of aerogel glass in Harbin,Kunming,and Beijing,and underestimates the same in Guangzhou and Changsha.
关键词
气凝胶玻璃/太阳辐射透过率/太阳光谱/得热量Key words
aerogel glazing/solar radiation transmittance/solar spectrum/heat gain引用本文复制引用
基金项目
国家自然科学基金青年基金(52208133)
国家自然科学基金面上项目(51678227)
河南省科技攻关计划(222102320339)
出版年
2024
NETL
NSTL
万方数据