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川西林盘冬夏季热环境实测分析 总被引:1,自引:0,他引:1
本文通过对两栋典型川西林盘冬、夏季室内热环境的现场测试,采用ASHRAE55-2004关于自然通风建筑热舒适评价方法作为评价依据对被测川西林盘的室内热环境进行了评价分析。结果表明,川西林盘的冬夏季室内热环境略优于当地农宅,绿化遮阳与构建室外微环境可改善农宅的室内热环境,对于我国农村住宅节能设计研究具有一定的借鉴性。 相似文献
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对广东地区农村居住建筑及其热环境现状进行了调查,发现农村居住建筑普遍缺乏有效的遮阳隔热措施,仅22.1%的居民对热环境感到满意,居民普遍期待改善室内温度。通过对26~30℃条件下、29℃及30℃辅助机械通风条件下的环境进行热感觉投票实验,结果表明,当室内温度在28℃以下时,开启门窗进行自然通风可达到热舒适要求;室内温度在29~30℃时,利用电风扇可达到热舒适要求。农村地区居住建筑热环境改善重点在于采用良好的自然通风、建筑遮阳及隔热措施,有效降低室内温度。 相似文献
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建筑遮阳系数对建筑能耗和室内热环境均有影响,而室内空气温度作为影响热舒适的主要因素与窗户遮阳存在必然联系.采用DOE-2软件计算方法分析遮阳系数变化时室内温度降低的分布情况,说明夏季设置外遮阳对室内热环境改善的效果. 相似文献
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《四川建筑科学研究》2014,(6)
调研发现,南昌地区新建的农村住宅热环境较差。通过对南昌市某一住宅的热环境模拟分析,提出热环境的改善措施,同时对改善后住宅的热环境进行模拟和对比分析,为农宅的热环境改善提供一定的理论依据。 相似文献
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我国博物馆能源消耗巨大,在博物馆中合理设置采光天窗能有效降低照明能耗。遗址博物馆作为博物馆的一种类型,对其自然采光需求和遗址保护之间的矛盾亟需进一步研究。通过对广东地区遗址博物馆实地调研和对其中两个博物馆展厅的光环境测量,梳理了这一类型博物馆中展厅天窗导致局部出现眩光、整体照度过高或采光不均匀的采光现状,然后利用日光模拟软件VELUX Daylight Visualizer 2进行模拟分析,提出广东地区遗址博物馆展厅的天窗优化设计方法——天窗遮阳整合设计。例如全玻璃顶天窗设计可整合发光天棚、条形天窗可整合漫反射结构优化设计的策略,以期为广东地区遗址博物馆展厅天窗优化设计提供借鉴。 相似文献
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通过阐述了热环境对人体的影响,分析广东地区轻钢结构工业厂房夏季室内热环境的基础之上,提出了改善工业厂房室内热环境的措施. 相似文献
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The impacts of ventilation strategies and facade on indoor thermal environment for naturally ventilated residential buildings in Singapore 总被引:1,自引:0,他引:1
The impacts of various ventilation strategies and facade designs on indoor thermal environment for naturally ventilated residential buildings in Singapore are investigated in this study based on thermal comfort index. Four ventilation strategies, nighttime-only ventilation, daytime-only ventilation, full-day ventilation and no ventilation were evaluated for hot-humid climate according to the number of thermal discomfort hours in the whole typical year on the basis of a series of TAS simulations. Parametric studies of facade designs on orientations, window to wall ratios and shading devices were performed for two typical weeks by coupled simulations between building simulation ESP-r and CFD (FLUENT). The results indicate that full-day ventilation for indoor thermal comfort is better than the other three ventilation strategies. With various facade design studies, it was found that north- and south-facing facades can provide much comfortable indoor environment than east- and west-facing facades in Singapore. It is recommended that optimum window to wall ratio 0.24 can improve indoor thermal comfort for full-day ventilation and 600 mm horizontal shading devices are needed for each orientation in order to improve thermal comfort in further. 相似文献
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建筑设计对住宅热状况的影响研究--北京市住宅夏季室温调查分析(2) 总被引:1,自引:0,他引:1
根据1999年夏季北京市居民住宅的室温实测数据,通过分析比较整个测试期内不同房间室温曲线变化的差异,定量研究分析了建筑设计所确定的房间楼层位置、建筑外围护结构及建筑平面布局等因素对住宅室内热状况的影响程度。研究结果表明:建筑外围护结构良好的保温隔热性能及合理的建筑平面布局是改善住宅室内热状况的关键。 相似文献
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以中国5个典型城市的气候条件为例,提出住宅建筑气候适应性优化设计流程。基于Grasshopper参数化性能分析平台,和Ladybug/Honeybee环境分析插件,以热环境舒适度模型、建筑能耗模型和建筑生命周期成本模型为目标函数进行优化分析。发现哈尔滨和北京气候条件下,住宅建筑应选择nZEB'(权衡最优)设计参数,而上海、昆明和深圳气候条件下,C-O(成本效益最优)解决方案比nZEB(节能最优)解决方案的综合效益更好。基于参数化性能模拟的多目标优化可以有效辅助住宅建筑的气候适应性设计研究。 相似文献
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文章通过对上海某居住建筑室内热环境的模拟计算,分析上海气候环境下居住建筑室内热环境的特点,并相应提出了若干改善居住建筑室内热环境的被动式设计策略。 相似文献
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Singapore has the hot and humid climate throughout the year. Many passive climate control methods are adopted in the naturally ventilated residential buildings to help achieve thermal comfort and reduce the energy consumption of air-conditioning. A field measurement and computational energy simulations were conducted to examine the effectiveness of commonly used passive climate control methods for these buildings. The effect of building orientation, façade construction, special roof system and window shading device on indoor thermal environment and cooling load was studied. The surface temperature of external wall and indoor thermal environment was measured to analyze the façade thermal performance. The cooling load was simulated to evaluate the effectiveness of various passive climate methods. Using the special roof system as thermal buffer is the most efficient method to reduce the room cooling load. 相似文献