共查询到19条相似文献,搜索用时 62 毫秒
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文中对美国的LEED、英国的BREEAM、日本的CASBEE等几大经典的绿色建筑评价体系进行比较研究,得到了各评价体系对构建我国住宅建筑节能评价体系的几点启示。 相似文献
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在中国经济不断发展的驱使下,人们的生活也发生了巨大的改变,不但在需求上有了大幅度提升,而且开始更加关注环保问题,对于绿色建筑的认知也更加深刻。近年来,在科技的助力下,建设行业以十分惊人的速度在发展,人们的需求也由基础性向更高层次过渡,绿色建筑节能设计开始受到人们的关注,这也是中国向着节约型社会发展的主要推动力。对现代绿色建筑节能设计从基本原则、必要性、发展及运用方面进行了探讨。 相似文献
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对国内外绿色建筑评价标准进行对比研究,发现各国对绿色建筑评价指标虽然都是建立在节能的基础上,但是没有明确的建筑碳排放指标.基于此背景,提出将建筑碳排放评价指标应用到绿色建筑评价体系中,使建筑满足绿色建筑等级的同时又能做到节能减碳. 相似文献
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高层建筑采暖系统由于各种原因常常产生水力失调的问题,结合建筑节能的发展趋势,提出优化采暖系统整体结构,通过智能系统主动控制相关阀门进行流量和压力调节的新型高层建筑采暖系统设计方案,以达到垂直方向和水平方向的水力平衡,降低整个系统的能源消耗和浪费,减少维护费用和管理费用并满足人们对室内环境的热舒适性要求的目的。 相似文献
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综合建筑空调节能技术 总被引:6,自引:0,他引:6
介绍了建筑空调节能的综合性技术,包括建筑外观特征与围护结构的节能技术(建筑朝向、布局、围护结构保温隔热、气密性、窗墙比)、建筑空调设备的节能运行技术(蓄能空调、热回收、变频技术)和建筑空调能源利用的节能技术(水源热泵、地源热泵、免费供冷、太阳能)。强调了建筑节能的社会效益和环境效益。 相似文献
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我国目前对配额制的福利效果,即配额制造成的福利再分配的评估方法的研究并不多。针对这一问题,文章提出一个基于双目标节能调度模型的可再生能源配额制福利效果分析方法。建立了在煤耗最小化的前提下成本最小的双目标节能调度模型;选取了27台火电机组、1台水电机组和1台风电机组,在此基础上依次扩大可再生能源的机组容量比例,利用和声搜索算法对不同可再生能源比例下的双目标模型进行试算;分析比较不同比例下机组的负荷、煤耗、机组收益、电网购电成本以及降耗成本等。得出结论:在可再生能源配额制度下,变动可再生能源的比例,会导致福利的再分配,即负荷量、煤耗、成本和收益都会在不同的机组之间进行转移和再分配;可再生能源比例从10%扩大到20%的单位降耗成本最低。 相似文献
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An intelligent wireless sensor network that is designed to save road lighting energy, while maintaining traffic safety, is presented. It consists of an array of nodes that may be installed on both sides of the road, being mutually separated by a few tens to a few hundreds of meters. Each node consists of (i) vehicle detection subsystem, (ii) wireless communications and control subsystem for message exchange between the neighboring nodes, and (iii) lighting subsystem. During the day, nodes are inactive, while during the night, they turn to an active mode enabling detection of passing vehicles and timely activation of road lighting. Upon detection of a passing vehicle, the node generates a wireless message. Neighboring nodes that receive the wireless message will turn on their road lighting. In order to prevent driver distraction, each lamp will be turned on at a safe distance ahead of the moving vehicle. In order to improve energy efficiency, the lights will be dimmed or turned off behind the passing vehicle. The proposed road lighting energy-saving (RLES) system, which combines advanced sensor and wireless communication technologies, is suitable for implementation both with existing high-intensity discharge (HID) lamps and new light-emitting diode (LED) lamps. Our analysis shows that the RLES system will pay off in less than a year when used with HID lamps, while pay-back period is less than two and a half years when used with LEDs. 相似文献
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Buildings are energy gluttons. Improving thermal performance of building envelopes will reduce energy consumption in buildings. The development of advanced building envelope systems reducing energy losses is a critical research frontier. This study introduces a simple but reliable methodology for building envelope evaluation and optimization in the conceptual stage. An improved grey relational projection method is proposed to select the optimum building envelope alternative. A combination weighting method combining the subjective weighting method and the objective weighting method is adopted to calculate the weights of the factors and sub-factors. The relative projection values of the alternatives are calculated. And the optimum alternative is obtained. An example is given to demonstrate the proposed method. Finally the proposed method is verified. The results show that this method is simple and practical, and it has potential as a powerful tool in building envelope evaluation and optimization for building owners, manufacturers, designers, and evaluators. 相似文献