The hottest photovoltaic building curtain wall has

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Photovoltaic building curtain walls are put into use in Germany

in the process of a research project carried out at the Karlsruhe Institute of technology in Germany, scientists studied and compared the energy efficiency of three buildings installed with photovoltaic curtain walls in Fortaleza in northern Brazil, Florianopolis in southern Brazil and Frankfurt, Germany. All curtain walls of the three buildings are equipped with Windows Embedded with translucent crystal solar cells

because all photovoltaic windows have only 3, especially for thick bottom greater than 5 μ The first suspension bed hydrocracking (VCC) pilot scale evaluation device in China - Yanchang Petroleum Group suspension bed hydrocracking pilot scale evaluation device has recently made a major breakthrough in the oil coal slurry feed experiment, seeking 0% transparency. In summer, due to the reduction of refrigeration demand, the energy-saving effect is remarkable. At the same time, more energy has to be used for artificial lighting inside the building. "But we can already reduce this impact by installing lighting control systems." Evelise Didon é, one of the researchers at Karlsruhe Institute of technology, explained

a completely different way to control the transparency of photovoltaic building curtain walls is to use dye-sensitized solar cells (DSC). Unlike ordinary silicon solar panels, the photosensitive layer of DSC uses photosensitive dyes to convert sunlight into electrical energy. In fact, the organic photoactive layer used in DSC is very thin. Solar panels with different transparency levels can be produced by selecting materials with different colors and thicknesses. Rossella corrao of the Architecture Department of the University of Palermo, Italy, explained: "although the efficiency of DSC modules is only 8% compared with 20% of silicon plates, compared with crystal plates with the same power, they can actually generate more than 15% of energy every year." The reason is that the DSC module is more effective in low light conditions. Unlike the silicon system, the efficiency of DSC does not depend on the incident angle of light. Therefore, the DSC module does not have to face the sun. Even if it is installed in a vertical or horizontal direction, it will not lose efficiency

in addition, using DSC in conjunction with the glass curtain wall "can obtain the bidirectional application of curtain wall integrated photovoltaic modules through the solar light source outside the building and the artificial light source inside the building, thus significantly extending the operation time of the system every day as long as the fixture is selected correctly." Corrao continued

The latest research of corrao at the University of Palermo includes the development of innovative solutions to improve the light absorption characteristics of building components. One of her research projects is to investigate whether DSC integrated glass blocks can reduce the thermal resistance (r value) of materials to a level consistent with future EU building regulations. Corrao's findings show that when the number of cavities in a glass block increases from one to two or more, the R value can be further reduced

in addition, using DSC to create these additional cavities in the glass block is definitely an option. The glass block integrated with DSC can not only be used for power generation, but also provide better insulation performance than ordinary standard glass blocks

computer simulation predicts that the direct influence of color and transparency on DSC photovoltaic efficiency is an important reference tool in the design of zero energy consumption buildings. Janne halme, a professor from Alto University in Espoo, Finland, is studying how to optimize the availability and power generation of DSC. In this regard, halme focuses on exploring new ways to integrate DSC into architectural design, rather than trying to optimize battery efficiency. The transparency of photovoltaic windows and the aesthetic effect of curtain walls are better than efficiency. Halme believes that "DSC efficiency has to take a back seat." Under the economic internal circulation of China glass () department, the fixture in mid April 2021 is a static state · Chengdu Construction Expo to talk with you about new opportunities in the industry

in 2020, with the outbreak of the global epidemic to the effective control of the prevention and control of the domestic epidemic, the global economic pattern has also undergone great changes, and China is pursuing [details]

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