大面积非晶硅太阳能光伏发电屋面系统与建筑一体化施工

威海市民文化中心工程非晶硅太阳能光伏发电屋面系统,是目前世界最大规模的非晶硅光伏屋面系统.从光电系统与建筑屋面相结合角度,阐述了光伏发电屋面系统的金属结构、电池组件、电气设备、监控和防雷系统安装以及光电系统调试、试运行等.     

西卡太阳能屋面系统在英国德蒙福特大学平屋面上的应用

西卡专门开发的与高分子材料同材质的光伏发电系统专用连接配件——Sika Solar Mount-1,在底部与卷材直接热焊,顶部卡住光伏组件支架,使光伏发电系统与单层屋面防水系统形成统一整体,从而实现保温、防水与光伏发电的完美结合.本文以英国德蒙福特大学平屋顶上安装太阳能屋面系统为案例,介绍了西卡太阳能屋面系统的设计与安...     

建筑光伏发电系统的防水密封设计

建筑光伏发电系统需要与建筑主体结构很好地连接,才能保证屋面系统的防水保温性能,而光伏阵列的安装和施工,则因屋面形式不同而异,解决好建筑光伏发电系统的防水密封问题,对发展光伏建筑一体化极具意义。     

光伏建筑一体化光伏系统设计探讨

以实际工程为例探讨光伏建筑一体化的光伏系统设计,主要分析光伏发电系统如何与建筑物（构筑物）相结合：(1)建筑屋顶光伏,包括光伏组件在混凝土平屋顶、棚架安装,以及光伏组件在坡屋面平铺安装;(2)建筑立面光伏,包括结合建筑立面造型安装和光伏幕墙;(3)构筑物光伏。并对分布式并网光伏系统的可实施性和技术要点进行总结。     

太阳能光伏组件与金属屋面系统连接设计及工程应用

在大型公共建筑金属屋面系统上安装太阳能光伏组件是光伏发电与建筑物集成化的重要应用。主要介绍了太阳能光伏组件与金属屋面系统之间的连接设计及工程应用;具体阐述了铝合金锁夹的连接节点设计,铝合金锁夹的优点,太阳能光伏电池组件的节点设计,并介绍广西体育中心二期太阳能光伏发电项目、滨州市奥林匹克公园暨十一届全运会体育馆太阳能光伏发电项目及新建杭州东站扩建工程太阳能光伏发电项目中的连接节点设计。     

直立锁边型彩钢瓦屋面光伏组件安装施工技术

在合肥京东方半导体屋顶分布式光伏发电工程中,根据直立锁边型彩钢瓦屋面结构的特点,采用了专门定制的光伏夹具来固定光伏支架与直立锁边型彩钢瓦瓦楞.以此为例,对直立锁边型彩钢瓦屋面光伏组件安装的施工工艺及操作要点进行了总结,并对该工艺应用的社会与经济效益进行了分析,可为类似工程的施工提供借鉴.     

曲屋面光伏发电一体化系统安装施工技术

通过对广西体育中心二期项目各场馆曲屋面光伏发电一体化系统的安装施工,阐述了在异形屋面上安装光伏组件所采取的施工技术和措施,指出该技术解决了曲屋面如何布局光伏面板的难题,具有显著的经济效益与环境效益。     

既有建筑安装光伏系统对建筑和电气的安全性影响分析

近年来,我国的光伏技术得到了长足的发展,民用建筑工程中利用太阳能光伏发电技术成为了建筑节能的新趋势。然而,在既有建筑改造或安装光伏系统上,需要对原结构安全、电气系统的安全进行复核,如果处理不当可能对房屋其他使用功能造成破坏。此文对安装光伏系统后建筑物的结构受力、建筑防火、屋面防水、排水、建筑物使用安全性和对电气安全性的影响进行了分析,希望能够对安装光伏系统的建筑物的安全性分析提供思路或方法。     

瓦型光伏构件在住宅建筑中的应用

屋面开发利用太阳能电力具有采光角度好、替代成本高、输变电成本低、安装维护方便等特点。将光伏发电部件与建筑完美结合是光伏建筑一体化（NPV）的重要内容。秦砖汉瓦在我国建筑文化中历史悠久，将太阳能电池与建筑瓦片结合形成瓦型光伏构件是实现屋面光伏建筑一体化的手段之一。瓦型光伏构件兼具光伏发电部件和建筑材料的属性，研究其技术特点、应用环境和施工方法，对推动屋面光伏建筑一体化具有重要意义。     

光伏屋面系统在已建大面积门式刚架建筑上的应用

光伏发电屋面系统应用在已建大面积门式刚架建筑屋面上是可行且需加以推广的。在安装时,针对屋面受压翼缘可能失稳的现象,采用在檩条处新增隅撑的做法,不仅可以满足此类屋面新增光伏系统的要求,而且保证了屋面系统的安全。     

光伏建筑一体化（BIPV）在绿色建筑中的应用

光伏与建筑的结合有两种方式，一种是建筑与光伏系统相结合，另一种是建筑与光伏器件相结合。某驻华使馆主体结构为钢屋架穹顶，施工和安装都有很大难度，经过反复试验、方案讨论和现场安装小模型等准备工作，最终建成了弧形光伏幕墙穹顶。     

Effect of building integrated photovoltaics on microclimate of urban canopy layer

Building integrated photovoltaics (BIPV) has potential of becoming the mainstream of renewable energy in the urban environment. BIPV has significant influence on the thermal performance of building envelope and changes radiation energy balance by adding or replacing conventional building elements in urban areas. PTEBU model was developed to evaluate the effect of photovoltaic (PV) system on the microclimate of urban canopy layer. PTEBU model consists of four sub-models: PV thermal model, PV electrical performance model, building energy consumption model, and urban canyon energy budget model. PTEBU model is forced with temperature, wind speed, and solar radiation above the roof level and incorporates detailed data of PV system and urban canyon in Tianjin, China. The simulation results show that PV roof and PV façade with ventilated air gap significantly change the building surface temperature and sensible heat flux density, but the air temperature of urban canyon with PV module varies little compared with the urban canyon of no PV. The PV module also changes the magnitude and pattern of diurnal variation of the storage heat flux and the net radiation for the urban canyon with PV increase slightly. The increase in the PV conversion efficiency not only improves the PV power output, but also reduces the urban canyon air temperature.     

光电屋顶结构设计

论述了光电屋顶结构的设计要点;指出了光电屋顶结构设计不同于光电幕墙结构设计;分别介绍了BIPV光电屋顶和BAPV 光电屋顶的结构设计.     

Compromises between form and function in grid-connected,building-integrated photovoltaics (BIPV) at low-latitude sites

The integration of photovoltaic (PV) modules on building façades and rooftops is an ideal application of solar electricity generators in the urban environment. Maximum annual performance of grid-connected PV is usually obtained with modules tilted at an angle equal to the site latitude, facing the equator. The performance of PV systems not tilted and oriented ideally can drop considerably, depending on site latitude. With grid parity – when the cost of solar electricity becomes competitive with conventional electricity – expected in many countries in the present decade, a more widespread application of PV on buildings is expected, and in this context the main goal of this paper is to demonstrate that good compromises between form and function are possible. In this work we compare the annual energy generation of a curved BIPV system installed as a car port rooftop, with an ideally-oriented and tilted, flat BIPV system installed as a building’s rooftop cover at a low-latitude site (27°S). For the one-year period analysed, the curved-shape BIPV system annual yield was 12% lower than that of the reference BIPV system, and during the summer months (November to February), the curved BIPV installation presented a higher energy yield than the latitude-tilted generator. With these results we show that a good compromise can be reached between form and function in BIPV systems.     

光伏墙BAPV系统经济性及环境效益分析

研究对象为上海地区高层建筑的并网光伏墙发电系统,系统为BAPV形式,以经济性和环境效益作为主要评价指标对系统进行分析。分析结果表明:光伏墙BAPV系统在国家和上海市的政策补贴下具有较佳的经济性,投资回收期为14年,单位净现值为3.90元/Wp,总投资回报率为45.3%;与传统煤炭电力系统相比共减少23 513.1 kg环境污染物的排放,相当于价值2 841.6元的环境减排效益,十分可观。若不考虑现有政府的政策扶持,就光伏发电成本本身依然过高,不利于光伏发电的推广和普及。     

福州海峡国际会展中心结构健康监测系统设计与分析研究

结构健康监测已成为重大建筑结构工程安全监测重要技术手段,是当前土木工程界研究热点。福州海峡国际会展中心结构健康监测系统包括了四大系统:传感器系统、数据采集和传输系统、数据处理及控制系统和结构健康评估系统。研究总体的设计原则和各子系统设计原则和方法,给出了基于钢屋盖结构体系的安全评估方法。     

杭州科技馆光伏屋面一体化设计与研究

介绍了杭州科技馆光伏屋面一体化的主要设计内容。将屋面光伏系统目标容量定为100kW,选用180W的嵌入模块式光伏组件,介绍了组件布置方式,并通过试验测试了组件力学性能、发电效率、水密性等;阐述了支架布置和连接方式,并建模分析了其在荷载工况作用下的杆件内力和变形情况;对光伏系统的逆变器配置、光伏阵列设计、光伏汇流设计和相关配电设备配置等内容进行了简要论述,建立了一套完整的用户侧低压并网系统。     

高铁建筑表皮与光伏一体化设计分析

目前高铁建筑表皮与光伏一体化设计在形态上过于单一,限制了高铁建筑形式表达和更大生态节能效益的实现。基于对高铁建筑形态特征的分析,和对当前光伏组件性能的总结,探讨了在高铁建筑屋面、立面和构件系统中,创新光伏组件类型选择和集成模式的可行性。发现：①通过优化光伏组件类型的选择,可以将光伏组件转变成高铁建筑形式表达的积极要素;②随着光伏组件性能的提升,相关集成设计可以突破当前集中于屋面系统的现状,拓展到高铁立面、构件系统中。研究为进一步丰富高铁建筑表皮形式,扩大建筑光伏一体化应用规模提供了依据。     

Application of transparent dye-sensitized solar cells to building integrated photovoltaic systems

Dye-sensitized solar cell (DSSC) is one of the most promising photovoltaic systems for building integration (BIPV). DSSC can be transparent with various degrees of transparency, which makes it suitable for window application in buildings. In this study, we investigate the relationship between the transparency, the efficiency of DSSC and the overall energy efficiency of a building when DSSC is applied as window system. It is shown that while the efficiency of less transparent DSSC is generally higher due to higher short circuit current density (J_sc) from the thick electrode, it does not necessarily maximize the overall energy efficiency of a building. This is because lighting conditions of the building varies with the transparency of the window. The optimum condition should be carefully considered with the transparency of window as computationally simulated in terms of energy generation and consumption. We also find that different orientations of window in the building affect the optimum conditions of DSSC.