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基于有限元分析与实验的窗口物理环境品质综合提升研究

Research on Composite Improvement of Physical Environment-Quality Around Window Area Based on Experiments and Finite Element Numerical Analysis

【作者】 刘刚

【导师】 马剑;

【作者基本信息】 天津大学 , 建筑技术科学, 2008, 博士

【摘要】 建筑外维护体系中,窗口区域是一个关键环节。它同时担负着采光、观景、通风等多种功能。但同时窗口区域也是建筑节能和改善室内物理环境品质的薄弱环节。由于传统窗体系统材质的特殊性和单一性,它存在着许多问题:例如,窗口区域保温隔热性能较差,容易引起夏季室内温度过热或者冬季室内热量过多散失;传统窗体系统采光、调光性能较单一,容易在室内产生眩光;传统窗体系统隔声效果较差,容易使室内噪声水平较高等。所以窗体系统的综合性能提升对建筑节能和改善室内物理环境品质有着重要作用。我国北方寒冷地区在外维护结构(包括窗体系统)的性能提升方面,主要考虑了冬季的建筑保温问题,在冬季防止建筑的热量损失,保证室内的温度不产生过大的波动,并节约能源。但是由于气候的改变和人们对室内物理环境品质要求的提高,北方寒冷地区的夏季防热问题也日益突出。那么窗口区域由于它在改善室内物理环境品质方面起到了重要的作用,所以针对建筑窗口区域光、热、声环境的研究十分重要,尤其是针对建筑光、热、声环境的综合优化的研究,但是目前寒冷地区在这方面的研究和工程实践少之又少。本文以天津的居住建筑为主要研究对象,采用有限元数值模拟和实验测试的方法,研究在天津气候条件下可调节百叶外遮阳对室内光环境、热环境、声环境三方面的影响。这具体包括天津地区居住建筑窗体系统:室内窗口区域光环境实验与数值模拟分析、室内窗口区域热环境实验与数值模拟分析、室内窗口区域声环境数值模拟分析。通过对这三方面的研究来探讨可调节百叶外遮阳对天津地区室内环境品质的影响程度以及技术适用性。从分析结果来看,天津地区采用可调节的百叶外遮阳具有夏季防热、降温、调光,冬季保温以及夜晚隔声等众多优点。而且新材料的采用对综合优化室内光、热、声环境的作用更为明显。这为建筑师在寒冷地区设计节能建筑和改善室内物理环境品质提供了一种新的思路和技术支持。

【Abstract】 Window system is an important element in exterior protected construction. It has many fuctions, such as day lighting, ventilation, view and so on. And the window system is also a weak link to save the energy and improve the quality of the physical environment. Old window system has some shortcomings: for example, bad heat preservation and insulation performance can not save energy, poor aiming performance can lead glare in the room, inferior sound insulation performance can not insulate the outdoor noise. So it is important to improve the composite performance of window system and the good composite performance of window system will save energy and help to make the physical environment quality better.Before, in north cold region of China, engineers focus most attention on the heat preservation performance of exterior protected construction (including window system) in winter. In recent years, because of the climatic change and peoples’promotional requirement, architectures also need good heat insulation performance in north cold region of China and the composite performance of window system become more and more important. So the research on window system is much needed.In this paper, the residential architecture is the research object. Finite element numerical analysis and experiments are used to research the influence of adjustable awning blinds to the physical environment in the room in Tianjin. The primary coverage include numerical analysis and experiments of day lighting in windows area, numerical analysis and experiments of thermal environment and numerical analysis and experiments of room noise level.From the analysis result, the residential architecture with adjustable awning blinds in Tianjin have many merits and can make the quality of the physical environment better, such as reducing the room temperature in summer, preventing the heat diffusion and adjusting the lighting distribution. After adopting the adjustable awning blinds with new materials, the merits become more obvious. So the analysis result can bring a new technical support to the architects when they want an energy saving building design with good quality of the physical environment in north cold region.

  • 【网络出版投稿人】 天津大学
  • 【网络出版年期】2009年 09期
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