共查询到20条相似文献,搜索用时 703 毫秒
1.
2.
3.
天然采光技术在绿色建筑中应用逐步扩大,应用于不同场所时,其节能效果不一。该文基于《建筑采光设计标准》提供的重庆地区导光管天然采光节能量核算方法,量化重庆地区办公室及地下车库的绿色建筑天然采光节能量。并基于重庆某地区绿色二星级项目,在设计中采用软件模拟分析技术优化地下车库导光设计,并对地下车库采用天然导光系统的天然采光节能量进行了分析,得出了以下结论:在重庆地区地下车库建筑中,可按8m×8m的间距设计直接采光导光管(Φ530),每平米导光管每年节约电能为1985.2k Wh。 相似文献
4.
5.
6.
建筑外遮阳是建筑节能的重要措施,但单一、不当的遮阳形式却可能阻碍房间的隔热、采光、通风和视野等,从而降低室内环境舒适性。以综合节能为目标,提出建筑外遮阳优化设计思路及方法,以重庆地区为例,基于气候特征分析研究南向和西向窗口综合性能好的外遮阳形式。模拟一般办公空间搭建外遮阳实验平台,对其隔热、采光和通风效果进行实地测试和检验。结果表明,优化后的外遮阳装置不仅遮阳和降温效果明显,而且,室内采光、通风及视野效果良好,具有综合节能的作用。 相似文献
7.
建筑表皮的日照辐射得热是建筑节能的重要指标。然而,目前的研究大多忽略了使用采光环境的营造。本研究以三塔办公楼为例,以建筑表皮的日照辐射得热及房间平均日照百分比为优化目标,对建筑表皮单元的重复次数、横向遮阳构件的宽度和高度及窗墙比等方面,进行多目标优化模拟实验。研究表明,冬、夏累积日照辐射得热量存在正相关关系。窗墙比及遮阳构件的变化对房间采光影响较大,对能耗影响较小。本研究可以为建筑师日常设计工作提供设计方法,在保证建筑表皮美观性和复杂性的同时,考虑表皮的多目标优化设计。 相似文献
8.
9.
下沉式建筑能够有效利用地下空间提升土地利用率,同时规避地下建筑通风不良、采光不足等问题,具有重要的开发意义和应用价值。本文提出一种基于正交试验优化下沉式建筑底层通风和采光的方法。该方法运用数值模拟工具计算下沉式庭院的通风、采光指标值,针对下沉式建筑的设计要素(如:下沉深度、下沉宽度、底层窗台高度、楼层数),基于正交试验方法,分析各要素影响下沉式建筑底层风环境、光环境的主次顺序和规律,并对各设计要素的取值进行优化决策,得到使下沉式建筑底层通风、采光综合最优的方案。该方法可以为下沉式建筑的初期方案设计提供参考。 相似文献
10.
寒地建筑采光性能优化设计有助
于改善建筑室内光环境品质。既有寒地建筑
采光设计多存在“对复杂空间考虑不足”“采
光模拟耗时长”等问题。本文旨在立足人工
智能技术语境,提出基于渐进式追踪技术的
寒地建筑采光性能优化设计方法。以寒地城
市某多层复杂建筑空间为例,展开采光性能
优化设计方法实践应用。结果表明:基于渐
进式追踪技术的寒地建筑采光性能优化设
计可动态地分析、反馈复杂建筑空间采光性
能,并能大幅降低采光性能优化设计耗时,
提高了寒地建筑采光性能优化设计精度和效
率,可为寒地建筑采光设计提供技术支撑。 相似文献
11.
12.
针对某些建筑后期装修与前期照明设计差异很大的问题,笔者通过对某办公建筑的两个典型房间进行实例照度分析,在对照度值和照明功率密度的对比分析中找出后期装修中存在的问题,并提出相应的对策.以期达到合理进行照度装修设计,节约能源的目的. 相似文献
13.
Kunio Matsuura 《Energy and Buildings》1979,2(1):19-26
A method of determining the depth of an area where one can turn off electrical lighting to utilize daylight in perimeter areas has been developed for standard offices with side-lit windows and typical artificial lighting. A graph of cumulative occurrence rates of the unobstructed sky illiminance is combined with the various distribution curves of daylight factors on the working planes in the standard rooms through the intermediary of the required illuminance. This graph makes it possible to decide the depth of the area easily and quickly by considering room widths, window-width ratios and obstructed angles of buildings opposite to the window across the street.Several limitations to this method are discussed and the problems for future research outlined. 相似文献
14.
Daylight use in an atrium is particularly beneficial as the natural light can illuminate potentially dark core areas and decrease energy consumption from electric lighting. This study has investigated, for overcast sky conditions, the horizontal daylight levels in spaces adjoining atria and the vertical daylight levels on atrium well walls in atria. The daylight levels in the rooms and on the walls were derived from scale model measurements, theoretical calculations and predictions from the lighting simulation package Radiance. A comparison of measured data and modelling has validated Radiance simulations of atrium daylighting. The simulations show generally good agreement with theory while some limitations in the calculations used in determining the daylight factors in rooms with large widow area to total wall area ratios were observed. The average daylight levels in rooms displayed a linear relationship with the vertical daylight levels on the well wall. In terms of the well geometry and well façades (decided by the ratio of window area to solid wall area) and well surface reflectance, the variations of daylight level in the adjoining rooms have been analysed and some conclusions and design strategies for supporting preliminary design decisions are presented. 相似文献
15.
16.
17.
G.K. Cook 《Building and Environment》1990,25(4):329-331
This paper summarises the results of a survey to determine the provision of artificial lighting in 59 classrooms. The rooms are sited in five different teaching institutions. Details of the survey equipment, and the methods of illuminance and luminance measurement are described. The measured values show that a wide variation exists between rooms.
The results of the survey are compared to the illuminance and glare recommendations in three different artificial lighting design codes. Many of the classrooms fail to meet the minimum requirements of these guides. A need for further work to establish the causes of these deficiencies is identified. 相似文献
18.
外遮阳百叶隔热性能与采光分析 总被引:1,自引:0,他引:1
外遮阳百叶能合理控制太阳光线进人室内,减少建筑空调能耗和人工照明用电,改善室内光环境,已成为当前追求"绿色建筑"目标的一项具体措施.该文通过理论分析和模拟,借助EnergyPlus、Radiance等软件,结合光和热两方面综合考虑,对空调时期上海地区布置不同角度和活动的外遮阳百叶办公房间的空调能耗、照明能耗及室内光环境进行了模拟、分析与比较.算例结果表明:外遮阳对照明能耗和建筑光环境的影响不容忽视;夏热冬冷地区固定式遮阳百叶的不同角度设置对建筑能耗的影响较大,其中实施活动式外遮阳措施能大幅度降低建筑能耗,有效改善室内光环境. 相似文献
19.
Silvia Cammarano Valerio Roberto Maria Lo Verso Chiara Aghemo 《Building Research & Information》2015,43(2):222-237
Results are presented from a parametric study that assessed the amount of daylight in rooms with different architectural features: the orientation, window size and visible glazing transmittance, room depth, external obstruction angle and site. Annual lighting simulations were run in order to understand how the daylight availability within a space changes as a function of the architectural features. A sub-dataset of the full result database is examined in detail for north- and south-facing rooms in Turin, north-west Italy, with a visible glazing transmittance of 70%. Each feature is analysed for its influence on the daylighting conditions. A simple graphical tool is presented to promote an easier reading of the results. This was developed to provide a synthesis of information to the design team. It shows the influence of preliminary design solutions on the amount of indoor daylight. This allows a design team to assess indoor daylighting from the earliest design phases onwards and to determine which combinations of architectural features are able to provide high, acceptable or low daylight levels within a room. 相似文献
20.
结合近年中小学校建筑工程实践。梳理中小学建筑电气设计所涉及的规范,从方案设计和施工图设计两方面总结中小学建筑电气设计要点。对学校用电指标、变配电所的设置、电气用房的设置、照明及弱电系统等的设计要素进行分析和总结。 相似文献