共查询到20条相似文献,搜索用时 250 毫秒
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在加利福尼亚,决定太阳能补贴水平的将不再是你家屋顶上有多少太阳能电池板,而是这些电池板生产了多少能量。 相似文献
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《Planning》2019,(23)
太阳能电池板是光伏发电的核心部件,表面质量关系着其使用寿命和发电效率。针对目前太阳能电池板缺陷检测方法存在着检测效率低、周期长、检测缺陷单一等问题,文章设计了一种基于深度学习的太阳能电池板缺陷检测模型SSNBDL,其基本思想是,在Segnet网络框架基础上,使用空洞卷积替代其中的池化层,使得在增大感受野的同时还保留了图像的边缘信息,基于该模型对太阳能电池板缺陷进行检测,明显提高了检测的准确率。 相似文献
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<正>在建筑物的外墙或房顶上贴上太阳能电池板,是建筑利用太阳能的常见方法。而德国一家建筑设计师另辟蹊径,决定在室内地面上铺上太阳能电池板来发电。这款环保低碳太阳能住房由德国爱斯林格工作室的设计师建 相似文献
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《Planning》2015,(20)
以Boost电路为基础,采用扰动观测法,最终改变太阳能光伏电池板的输出电压,以此实现太阳能光伏电池板的MPPT功能。通过在MATLAB/Simulink搭建仿真模型,验证了此控制策略的正确性和可行性。 相似文献
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《Journal of Building Performance Simulation》2013,6(3):199-207
Most industrial buildings rely almost entirely on air-conditioning systems to provide thermal comfort to staff and customers who use the premises. As an alternative to this active approach, passive strategy is recommended to either fulfil this task or to help reduce energy consumption of air-conditioning systems already installed. Applying solar reflective coatings on external surfaces of the building, a key passive strategy, appears to offer an effective solution to reduce solar heat, especially during the summer, penetrating through the building fabric. This article discusses a study that uses computer thermal modelling to investigate the effectiveness of this strategy and to explore its contribution to operational energy savings. Detailed mathematical modelling in accordance with thermodynamic and heat transfer theories through the building fabric is illustrated and solutions to the mathematical problems are presented. The study consists of a comparison between two scenarios (normal coating and reflective coating) in three locations in China and one in Australia. The application of solar reflective coatings on external surfaces of the building produces energy savings for all the four locations and is found to be more beneficial in hot climates where there is a considerable need to reduce summer solar gains. 相似文献
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V. Sriram 《国际自然能源杂志》2018,39(1):51-53
Energy is the key driver of the economy but energy crisis is a problem for the present-day source of energy. The concentrated solar power systems make use of different reflector configurations to convert the solar energy into high-temperature heat energy. Parabolic dish system is considered as the best suitable system for achieving high temperature and so it is opted for the study. Here, a solar dish is designed with an open diameter of 1.8?m (which is 2.5?m2 in area), and reflective film is being used to reflect the solar irradiance and concentrated it in the focal point. A receiver of 1?mm thickness and 10?cm diameter is used at the receiver end to measure the temperature of the focal point. The setup has made to attain a maximum temperature of 940°C and average temperature of 850°C in the focal point at clear sky in a sunny day. 相似文献
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屋面用热反射涂料性能研究 总被引:1,自引:0,他引:1
介绍了热反射涂料用于屋面节能的原理与技术途径;选取了几种丙烯酸类热反射涂料进行性能评估,分析并比较了热反射涂料在屋面节能领域应用中的性能差异;指出丙烯酸类热反射涂料具有较高的阳光反射率及耐沾污性能,优异的力学性能及防水性能。 相似文献
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In this paper the thermal analysis by natural convection of a double glazing unit (DGU) is presented. One of the sheet glasses may or may not have a solar control film (SnS–CuxS) on its surface. Solar radiation falls on the outside surface of the DGU at 32 °C, the opposite sheet glass interacts with the inside environment at 24 °C. The governing equations of mass, momentum and energy of the air enclosed between the two sheet glasses are solved, as well as the heat conduction equation for both sheet glasses. The effect of varying the separation distance between the glasses (1.0 ≤ b (cm) ≤ 10.0) and the incident solar radiation is analyzed (500.0 ≤ G (W/m2) ≤ 800.0). From the results, it was found that in order to reduce heat gains towards the inside environment, the optimal separation distance between the sheet glasses was b ≥ 6.0 cm. It was also observed that, the use of a solar control film in this type of system (double glazing unit) is highly recommended; due to energy gain was reduced by 55% compared to the traditional DGU without solar control film. 相似文献
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当今世界太阳能热水器的发展状况 总被引:2,自引:0,他引:2
世界能源统计报告资料显示,常规能源可供人类使用的时间非常短暂,能源安全形势非常严峻.为了解决这一问题,从20世纪70年代开始,科学家就开始研究可再生能源的利用,太阳能以其经济、安全等优点,成为可再生能源开发中的重要组成部分.从论述全球常规能源现状,国际太阳能以及中国太阳能热水器的发展现状着手,指出世界太阳能市场正面临一个难得的发展机遇,我们应该把握机遇,不断提高太阳能产品质量及技术水平,使我国真正成为太阳能热利用的强国. 相似文献
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随着我国能源的紧缺和环保意识的加强,太阳能、浅层地热能作为可再生能源,越来越受到人们的重视。但无论是太阳能系统,还是水源热泵系统,单独运行时均有一定的局限性,两者联合运行的应用很少。通过实际工程分析,太阳能系统与水源热泵系统可以联合工作,并可达到预期的室内空调温度;对太阳能系统与水源热泵系统联合运行的运行费用做了技术分析,证实这种联合模式节能效果十分明显。 相似文献
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杨文颐乔亚玲王强强张丹武丛林刘洋 《中国建材科技》2014,(1):14-17
针对夏季北京地区建筑屋面涂覆太阳热反射涂料后的隔热节能效果进行理论分析和实证研究,结果表明:冷屋面温度及得热量明显降低,可减少夏季建筑空调负荷,具有明显的节能效果。 相似文献