共查询到19条相似文献,搜索用时 171 毫秒
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对夏热地区绿色公共建筑的运行能耗及室内环境品质进行了调研及分析。选取位于夏热冬暖和夏热冬冷地区不同城市共14个获得绿色建筑运行标识的办公建筑,通过调研和典型项目室内环境现场测试,分析了绿色办公建筑运行能耗和室内环境品质的情况。研究表明,夏热地区绿色公共建筑运行能耗符合标准要求,公共建筑最大月能耗普遍出现在天气最热的月份,商业建筑和办公建筑的最低能耗出现在天气最温和的月份,空调能耗波动性最大,且公共建筑中酒店建筑空调能耗占比最大;办公建筑和酒店建筑的室内环境品质满足标准要求,但商业建筑的室内空气质量有待提高。针对运行效果提出建议,以期为我国夏热地区绿色公共建筑运行效果提升提供参考。 相似文献
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本文通过对深圳市办公建筑实际的人均建筑面积进行分析,得出了办公建筑单位面积能耗指标与人均能耗指标随人均建筑面积增加的变化趋势。根据对深圳市两栋实际办公建筑能耗进行分析,得出了采用单一指标无法客观反映建筑能耗水平的结论。利用DeST-c建筑能耗模拟软件,对深圳市某典型办公建筑主要分项用能系统能耗进行计算,分析了在不同人员密度下,建筑各分项能耗的单位面积能耗指标与人均能耗指标的变化趋势。 相似文献
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《建设科技(建设部)》2016,(14)
本文对天津市38栋办公建筑和27栋商业建筑运行能耗数据进行了调研,办公建筑单位面积年能耗为37.39~227.14k Wh/(m~2·a),平均值为107.28 k Wh/(m2·a);商业建筑的单位面积年能耗为37.76~564.67k Wh/(m~2·a),平均值为174.87 k Wh/(m~2·a)。天津地区办公建筑采暖空调能耗所占比例较大,占到总能耗的30%~60%,商业建筑商业用电所占比例较大,占到总能耗的50%以上;天津地区办公建筑和商业建筑在运行管理方面存在一定问题,导致运行能耗较大,具有很高的节能减排空间。 相似文献
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运用动态能耗模拟软件eQUEST建立了长沙某高层办公建筑的能耗模型,得到不同建筑及设备条件下的全年建筑能耗。利用正交试验法分析得出建筑长宽比、窗墙比、外窗类型等能耗影响因素的重要程度。研究结果表明,室内设定温度、设备和照明功率密度、外窗类型是影响夏热冬冷地区高层办公建筑能耗的显著因素。 相似文献
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广州地区办公建筑外围护结构的热工性能与节能分析 总被引:1,自引:0,他引:1
办公建筑的空调能耗是围护结构的温差传热、室内热扰、太阳辐射等因素动态综合作用的复杂结果。本文采用DeST软件对广州地区某办公建筑围护结构的各项节能措施的节能效果进行分析,结果表明:降低外窗的遮阳系数、外墙和屋顶的传热系数对减少建筑全年空调能耗和最大空调冷负荷是有利的,但降低窗的传热系数对减少建筑全年空调能耗和最大空调冷负荷不利。建议在办公建筑节能设计过程中,模拟计算全年能耗,确定能耗低且技术经济合理的方案,尤其要慎重考虑是否采用低传热系数的窗。 相似文献
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本文在夏热冬冷地区公共建筑能效提升技术应用效果分析基础上,开展了西湖区各类公共建筑能耗对比分析,提出了四类典型公共建筑(办公建筑、宾馆饭店、医疗卫生建筑、商业综合体)等不同类型公共建筑主要节能改造技术,初步探索形成西湖区公共建筑能效提升适宜性技术体系,包括围护结构、暖通系统、照明电器系统等不同用能系统的节能改造与运行调适技术。 相似文献
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绿色办公建筑的设计与技术实现的目的是保证员工有一个舒适、健康的工作环境和节约建筑整个生命周期内的能耗。本文通过对南京现有高层办公建筑室内环境和能耗的调研,在现有建筑设计技术的基础上分析归纳出夏热冬冷地区绿色办公建筑的设计与技术实现的途径。 相似文献
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对山东某地区商务办公建筑进行了调研。应用抽样调查的方法,对该地区37个样本量的能耗进行统计处理,得出了该地区单位面积建筑能耗为72.14 k W·h/(m~2·a),单位面积供暖能耗为14.74 kgce/(m~2·a)。研究结果表明,山东某地区的商务办公建筑在用能方面还存在一些问题,建筑节能潜力较大。这对于科学确定商务办公建筑的能耗指标,进而实施用能超定额加价政策具有一定的参考价值。 相似文献
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利用Desgnbuilder模拟软件对西部地域九个城市的典型办公建筑在自然通风和非自然通风条件下进行逐时能耗模拟,以节能率和单位面积节能量为指标,结合通风潜力计算结果综合分析各地区的自然通风节能潜力。结果表明各热工分区的自然通风节能潜力大小依次为温和地区、严寒地区、寒冷地区,夏热冬冷地区总体不具备自然通风节能潜力,但是在过渡季节仍有一定的节能效果。 相似文献
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本文在对"夏热冬冷"地区办公建筑遮阳状况调研的基础上,分析存在的问题,探讨分析可控式外遮阳在该地区应用的可能性及策略,并用Ecotect分析软件模拟可控式外遮阳的作用效果,以期对降低办公建筑的能耗有所帮助。 相似文献
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A great amount of world energy demand is connected to the built environment. Electricity use in the commercial buildings, accounts for about one-third of the total energy consumption in Turkey and fully air-conditioned office buildings are important commercial electricity end-users since the mid-1990s. In the presented paper, the interactions between different conditions, control strategies and heating/cooling loads in office buildings in the four major climatic zones in Turkey – hot summer and cold winter, mild, hot summer and warm winter, hot and humid summer and warm winter – through building energy simulation program has been evaluated. The simulation results are compared with the values obtained from site measurements done in an office building located in Istanbul. The site-recorded data and simulation results are compared and analyzed. This verified model was used as a means to examine some energy conservation opportunities on annual cooling, heating and total building load at four major cities which were selected as a representative of the four climatic regions in Turkey. The effect of the parameters like the climatic conditions (location), insulation and thermal mass, aspect ratio, color of external surfaces, shading, window systems including window area and glazing system, ventilation rates and different outdoor air control strategies on annual building energy requirements is examined and the results are presented for each city. 相似文献
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上海公共建筑能耗现状及节能潜力分析 总被引:52,自引:10,他引:52
根据上海地区办公楼、商办楼、宾馆和商厦能耗调研的数据,对上海公共建筑空调能耗的现状作了评价。认为上海建筑用能水平较低,用能不尽合理,提出用系统能量效率比用单位面积平均一次能耗量作为建筑节能的评价指标更为合理。 相似文献
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Daylighting has often been recognized as a useful source of energy savings and visual comforts in buildings. Occupants expect good daylight in their working spaces. The quality and quantity of natural light entering a building depend on both internal and external factors. In Hong Kong, commercial building accounts for the major building energy use and electric lighting is one of the major electricity-consuming items. This paper studies the daylighting performance and energy implications for office buildings. A total of 35 commercial buildings have been selected in the survey. Key building parameters affecting daylighting designs are presented. Two typical office blocks were further analysed based on a lighting simulation program. The daylighting performance was evaluated in terms of daylight factor, room depth and glare index. It has been found that the daylighting performance for office buildings is quite effective. About one-third of the office areas that are near the perimeter regions have an average daylight factor of 5%. For inner region of deep plan offices, some innovative daylighting systems such as light redirecting panels and light pipe could be used to improve the daylighting performance. In general, the office building envelop designs are conducive to effective daylighting and proper daylight linked lighting controls could save over 25% of the total electric lighting use. 相似文献