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针对广州地区的气候和建筑特点,采用以DOE-2为计算核心的建筑遮阳设计分析软件(ShadePlus),对广州地区常见的多层居住建筑和普通办公建筑进行了外遮阳节能分析,分析结果表明,最佳的外遮阳策略可以使居住建筑节能率达到72.67%,办公建筑节能率达到57.26%。最后,讨论了适用于广州地区的外遮阳设计方法,并探讨了与外遮阳设计相关的采光、通风等问题,在节能的基础上为建筑师提供更多的参考。 相似文献
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建筑外遮阳是建筑节能改造的重要环节,由于我国节能改造的政策支持和技术保障措施的日渐完善,截止到2011年末,我国十多个省份和地区已经逐步强制实施了居住或公共建筑节能65%的节能设计标准,其余的省份也正逐步推行本文将对建筑物各种形式的外遮阳节能改造效果进行比较分析,对既有建筑的外遮阳节能改造形式提出优化建议 相似文献
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建筑外遮阳设施在我国不同地区应用的节能效果如何评价是当前建筑师、制造商和消费者对外遮阳最为关注的问题,目前还缺乏一套统一、科学、操作性强的标准评价方法.本文分别对目前已发布的关于遮阳节能评价和测试方法的标准进行简要介绍,包括拟合计算、实验室标准人工光源试验以及户外实测,并指出了目前存在的问题. 相似文献
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建筑能耗计算中外遮阳系数的研究 总被引:6,自引:0,他引:6
对建筑能耗计算中外遮阳系数进行了研究。通过建立计算模型,利用动态计算机软件计算的结果分析,得到外遮阳系数方程系数,从而简化了建筑遮阳时外窗太阳辐射得热的计算。 相似文献
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引言
建筑设计中,无论是玻璃幕墙外围护体系,还是传统的开窗方式,都要追求建筑的美观和生动.但是,随着近年来社会各方各面对建筑节能要求的不断提升,无论采用何种方式均需满足建筑节能的要求,而在建筑节能设计中,对于建筑综合遮阳系数的规定及要求,无疑是重要参数之一.
为了满足建筑节能计算中对综合遮阳系数的规定及要求,建筑遮阳不失为一项行之有效的技术措施.建筑遮阳是为防止直射阳光照入室内,减少太阳热辐射,避免室内过热或产生眩光,以及保护室内物品不受阳光照射而采取的一种建筑技术措施[同济大学等四院校.房屋建筑学.中国建筑工业出版社,1997(第三版)].建筑遮阳又可分为建筑外遮阳和建筑内遮阳,本文着重讨论对于建筑造型影响较大的建筑外遮阳. 相似文献
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Jordan heavily relies on imported oil and gas for meeting its energy need as the same time the construction sector consumed more than half of the total electricity consumption in Jordan in 2008. In order to provide the occupants with thermal comfort at least cost, applying energy saving measures into early design stage can be significant to achieve this goal.This paper discusses an assessment of best orientation of the building, windows size, thermal insulation thickness from energetic, economic and environmental point of view for typical residential building located in Mediterranean region. The results show that about 27.59% of annual energy consumption can be saved by choosing best orientation, optimum size of windows and shading device, and optimum insulation thickness. The Life Cycle Cost (LCC) is reduced by 11.94%. The specific energy consumption per square meter is 64 kWh/m2 a. 相似文献
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This study presents a novel residential envelope transmittance value (RETV) performance-based approach for determining the
suitable external shading devices and glazing types to improve energy efficiency in residential buildings. The approach is
applied to two residential buildings types, namely, point block and slab block, for any given orientation in an entire year.
In this approach, a RETV equation for residential buildings was first developed. Employing this equation, we demonstrated
how the design of shading devices and the selection of glazing type impact the cooling load of high-rise residential buildings.
Comparing results from the model simulations, the half egg-crate louver was found to be the most suitable shading device for
residential buildings facing the north and south orientations, whereas a horizontal projection with 30° downward tilt was
appropriate for facade facing the east and west orientations to reduce cooling load. In addition, simulations also indicated
low-E single clear glazing to be a suitable glazing since it results in relatively economical short payback periods. 相似文献
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简要介绍了外墙外保温系统的分类及构成,较为详细地阐述了该系统的优势及不足,并给出了问题的解决办法,最后指出推广应用外墙外保温技术具有十分重要的理论价值和实践意义。 相似文献