基于BIM技术的公共建筑能耗分析监测系统设计

为推进我国建筑业节能的发展,改善大型公共建筑能耗量大的现状,对BIM技术在我国的应用现状进行综述。以某一公共建筑为研究对象,基于BIM技术的应用,运用建筑热环境模拟计算工具DeST软件对其分项能耗进行分析,得出其建筑热工性能、照明系统以及空调系统的节能统计结果,为能耗监测系统的设计提供方向。基于统计结果的分析可知该公共建筑整体能耗量大,需进行实时监测,因此从三方面设计了能耗监测系统的基本功能和系统架构,旨在构建可靠、高效、共享度高的能耗数据库,建立能耗监测、统计、公示平台,对推动BIM技术在建筑节能方向的应用具有一定研究作用和价值。     

北京市公共建筑能耗限额管理系统应用

本文介绍了北京市公共建筑能耗限额管理信息系统在公共建筑电量能耗限额方面开展的工作及系统建设情况,希望以此为契机,为居民用电的能耗限额管理奠定基础,以便更好更快地开展相关工作。     

建筑电气节能技术研究与探讨之三：建筑能耗分析方法与思路

建筑能耗分析是进行建筑节能的必要手段,本文对如何正确简单地进行建筑能耗分析进行了论述,并结合综合实例和图表进行了说明。     

Embodied and Operational Energy Consumption in the City

This study shows how estimates of energy consumption can be extracted from existing data sets and efficiently related to characteristics of the real property making up the discrete areas of the city. The study suggests that embodied energy consumption may be more significant than previously thought and suggests how estimates of embodied and operational energy may be used as a development control tool in the planning system.     

Embodied and Operational Energy Consumption in the City

This study shows how estimates of energy consumption can be extracted from existing data sets and efficiently related to characteristics of the real property making up the discrete areas of the city. The study suggests that embodied energy consumption may be more significant than previously thought and suggests how estimates of embodied and operational energy may be used as a development control tool in the planning system.     

城市能源系统改造模拟方法：泰恩河畔纽卡斯尔的当前实践和未来挑战

文章回顾了英国的碳减排议程和当前地方在构建城市能源模型方面的实践与挑战,提出了技术与社会系统相互作用下的模型研究与定量理解中存在的一些缺陷。文章还梳理了对家居行为和能源需求已有的模型方法,以便将研究重点（反弹效应和需求侧管理）以及研究采用的行为模型的基本原理纳入整体研究框架。该模型模拟和量化了技术系统的改造和家居行为之间相互作用中的两个突出部分——反弹效应和需求侧管理。利用这一模型,文章详细阐释了对泰恩河畔纽卡斯尔200套社会住宅的案例研究,研究结果对于旧城改造的规划决策系统建设具有重要的理论与现实意义。     

国内外电梯能耗研究情况简介

为了开展电梯节能审查和监管工作,以及开展电梯产品节能降耗工作,必须建立行业统一的电梯能效评价指标和检测方法。世界上一些国家和地区已经开展了电梯能效评价和检测方面的研究,这里介绍瑞士、美国、我国香港地区以及国际标准化组织取得的研究成果。     

公共区域空调能量浪费状况分析

提高中央空调的能量利用效率是建筑物节能的一个重要因素,能量利用效率的量化是中央空调评价体系的关键。本文通过提出能量利用效率的定义和计算方法,通过实际项目数据,对中央空调系统的利用效率进行分析,可以看出目前的公共区域空调能量利用效率很低,存在着很大的节能空间。能量利用效率可以为系统改进提供一定的指导。     

结合实践案例分析的生态建筑系统构成初步研究

该文结合生态建筑设计实例,初步分析和研究了生态建筑的系统构成,提出实现生态建筑整体系统效能的方法和相关技术支持．     

能源消费行为：理性还是惯性？

减少能源消耗不仅事关提高能效的措施和技术,也与日常行为习惯的改变密切相关。尽管有的观点认为,过分强调个体行为对社会向低碳过渡的驱动作用,会转移人们从更宏观的经济和政治的层面来探讨这一问题的注意力,但环境友好的行为在此过渡过程中起到的重要作用已经获得了广泛认可。然而,环境友好行为包括哪些？人们为什么会这样做？他们改变行为的动因是什么？行为形成和改变的核心要素有哪些？本文通过讨论关于环境行为及其驱动力的三种学说：理性经济说,意识分析说,以及社会影响说来解答以上问题。同时,联系能源消费方面的案例,对行为进行概念上的解读。     

节能建筑的造型与材料对建筑保温的影响研究——以冰屋的保暖设计原理为例

本文从冰屋的设计原理出发,提出建筑体形系数与及含空隙的建筑材料对建筑保温隔热的影响。并通过举例验证的方式,验证理论的正确性。并分析该理论在应用中的局限性。     

风侧自然冷却及其自控系统探讨

在数据中心的巨大能耗中,调方式无疑可以降低数据中心的能耗,点及优势。空调系统所占的比例最大。选择正确的空本文即分析了风侧自然冷却方式的应用特     

气候变暖对建筑能耗的影响

能源消耗与气候具有密切关系。一方面能源的开发利用会对气候产生影响;另一方面气候变化又直接影响到能源消耗。建筑部门就是受此影响部门之一。供暖空调能耗在建筑能耗中所占比重较大。通过对我国若干城市近几年的1月平均温度、冬季平均温度与常年值进行比较,利用度日数等气候指标分析了气候变暖对建筑物供暖能耗的影响。同时探讨了气候异常时建筑物空调能耗的变动状况。     

公共建筑能耗监测系统数据链应用研究

公共建筑能耗监测系统是一个分布式网络,系统具有实施动态监控特性。在实际应用中,要求系统具有高效传输链路支持监测数据的传输,在此基础上,系统才能对数据进行有效地分析和处理。因此,在系统规划过程中,我们应用数据链技术对系统进行优化设计,实践证明,采用数据链技术能够显著提高系统的传输性能。     

公共建筑的多样性及其能效理论的初探

本文分析既有公共建筑的用能特点及其多样性。即地域的用能差异、不同类型公共建筑用能的特点和同类公共建筑运行能耗的差异性。试图对建筑负荷公式按建筑功能的特点加以变量划分和扩展,以变量理论指导各类公共建筑提高运行能效。,最后．提出当前建筑能耗统计中存在的问题,建筑智能化在提高建筑能效中不可替代的作用。     

Energy consumption criteria and labeling program of wet cooling towers in Iran

Increasing concerns about the lack of energy resources, global warming and environmental pollution have pushed the relevant organizations to develop energy saving strategies such as energy labeling programs. In this research, a new energy labeling program is developed and evaluated for the wet cooling towers in Iran. The cooling tower parameters, including its cooling capacity and the fan power consumption, are measured using an experimental setup. The experimental data are standardized to compensate the effect of the ambient wet bulb temperature on the cooling tower performance which cannot be controlled during the experiments. The results show that the cooling tower capacity and the fan power consumption may be correlated properly using a linear function which conducts the authors to present a linear energy index (EI). Based on the statistical analysis of a comprehensive range of products, the energy rating limits are extracted for the main types of cooling towers, including induced draft and forced draft ones. The economical and environmental impression of the program authorization is also discussed in detail. Administration of such program may lead to considerable energy saving in the cooling systems which have major economical and environmental benefits, especially in the large industries.     

建筑工程智能化节能技术应用

建筑节能不能简单地靠节能技术的堆砌实现,而应该从控制总的建筑能耗出发,以提高设备运行性能、降低总的建筑能耗为目标。通过能源计量系统对建筑用电进行分项计量,掌握实际能源消耗状况,充分利用智能化的控制和管理手段,实现被控对象的最佳化运行。     

Integrating physical and virtual environments to conserve energy in buildings

Fundamental understandings of how energy is consumed, monitored, and controlled are key prerequisites for an energy conservation process. Users who know exactly when energy consumption occurs and where it takes place are able to make more informed decisions about how to lower their energy consumption. Energy conservation projects in the U.S. have reported a 2-11% savings when users are presented with information on energy consumption. Engineers are increasingly turning to virtual environments to improve system design and development and optimize performance and increase efficiency during operation. A bottom-up approach to real-time energy monitoring by integrating virtual and physical domains to increase user awareness on where, when, how and why aspect of energy to make inform decisions regarding energy consumption, optimization and conservation is proposed. A virtual 3-D environment is developed to display actual space/zone/building real-time power consumption information and to allow users to easily locate equipment/loads that are in standby/inefficient and causing energy waste in the real/physical environment. The proposed system is demonstrated via a prototype board that is virtually integrated with an actual Zero Net Energy Test House (ZNETH) as part of future Net-Zero Energy buildings research. The results establish a promising tool in this filed.