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93-97 PV modules in the construction of the application

Author: Source: Datetime: 2017-01-11 15:08:58
4.2.7 PV modules in the construction of the application
For the application of photovoltaic modules in the building, generally can be divided into the following three cases.
Figure-4-34-Ramp-type-applications
4.2.7.1 on sloping roof construction
 (1) Inclined shop
The use of special photovoltaic components articulated structure with the roof on the roof. This approach is not unobtrusive with the building, and relative to other inclined roof installation is cheap, the market can be purchased directly to the different types of inclined roof installation system is a common combination of photovoltaic modules and building applications, See Figure 4-34.

Figure 4-34 Skew-applied applications

Figure-4-35-mosaic-applicationsFigure-4-36-Roof-Tile-Applications

(2) Mosaic

PV module is behind a hook or clip, mounted directly on the frame structure, instead of part of the roof tile. This way of embedding makes the PV modules and buildings very well integrated, easy to install, the perfect combination of technology and art, see Figure 4-35.
(3) PV modules roofing tiles
① That is the roof tile that the PV module as a direct use of building materials, instead of roof tiles, installed in the pre-prepared mold. The PV modules, like standard tile performance, are waterproof and weatherproof, as shown in Figure 4-36.
Figure 4-35 Mosaic Application
Figure 4-36 is itself a roof tile application
② Seamless integration with the roof tile to the PV module frame made with the roof tile shape, color similar to the shape, and the roof tile seamless. This installation can be spread out the whole piece, you can also embellishment, arranged in different patterns, changing the layout of the roof tile layout, highlighting the architectural personality, the application of photovoltaic modules opened up a new space for development, 37.Figure-4-37-one-Overall-application-with-roof-tile
(4) Skylights, lighting roof

This approach is the use of photovoltaic modules in the building when integrated, the use of double glass components or hollow components, as the top of the daylighting or skylight. As the light roof or skylight on the light transmission of certain requirements, which for their own opaque crystalline silicon solar cells, the need to adjust the gap between the cells to control the amount of light transmission, so both light and indoor Provide power, see Figure 4-38.

Figure 4-38 Skylight roof Slanting、 get the lights on roof applications

4.2.7.2 On flat-topped buildings
Flat roofs have the potential to install PV systems and a significant advantage is to determine the optimum location with the help of support structures (flat top PV system installations require special mounting structures to provide the required angle), and the tilt angle According to special requirements to adjust. The specific application is as follows.
Figure 4-37 Unobtrusive application with roof tile
Figure 4-38 Skylight roof skylights, lighting roof applications
(1) An oblique array
① Overall oblique due to different regions affected by different solar irradiance, affecting the conversion efficiency of light and electricity, so some areas need to have a certain degree of tilt of photovoltaic modules, the largest area to receive solar radiation. This application is the combination of each unit photovoltaic modules into a slope to form an array, used to solve the problem of tilt angle, see Figure 4-39.Figure-4-39-Roof-Tile-Applications
(2) A single group of oblique, that is, a single unit of photovoltaic modules or a few units of photovoltaic modules combined into a group to form a slope, and then form an array. This is another way to solve the tilt angle of photovoltaic modules,

See Figure 4-40.

Figure-4-40-single-array-of-oblique-applications

(2) Skylights, lighting roof
And skylights used in sloping roofs, lighting roof similar, is the combination of photovoltaic modules in the building, the use of double glass components or hollow components, by adjusting the gap between the battery control
Light transmission, beautiful and energy-saving, but also the formation of the mysterious beauty of light and shadow. However, this application is suitable for low latitude areas, or will receive solar radiation area is small and affect the conversion efficiency of PV modules, see Figure 4-41Figure-4-41-Skylight-on-top-of-flat-roof,Lighting-roof-applications
(1) Drift plate type
That is, the photovoltaic modules and roof floating plate integrated in many, to build the building exterior modeling. Not unexpected, not far-fetched, very cleverly combined with the building, see Figure 4-42.Figure-4-42-Floating-plate-type-application

4.2.7.3 On the external walls of buildings
The use of PV modules on the outside wall is very visible, can highlight the building personality, but in the vertical profile of the application of photovoltaic components can not reach the best lighting state. While PV modules can be profitable on building facades, especially on the east or west side, the effect depends largely on the local latitude. The main application is as follows.
(1) Curtain wall system
There are two types of photovoltaic curtain wall system, one is composed of ordinary solar cell components, the other is a transparent glass photovoltaic curtain wall. It is the double glass components or hollow components as building materials installed in the building facade, not only translucent, and save the expensive external decoration materials (glass curtain wall, etc.), and formed a feature of light and shadow, fantasy magic, add The charm of the building. PV curtain wall system and the perfect combination of architecture, both energy saving and environmental protection, but also highlight the "green" architectural features, dissemination of environmental protection concepts.
(2) Decorative wall decoration
This refers to the use of PV modules on the wall facade, as decorative embellishment, paved into a lot of patterns or a regular array, forming a style and architecture blending. Rather than the whole covered or paved with a large square. This is a good application, see Figure 4-43.Figure-4-43-Vertical-decorative-wall--applications
(3) Shading system (blinds, visor, etc.)
PV modules and buildings in the form of integrated shading louvres, visor, in the summer to bring shade at the same time can generate electricity, energy-saving, practical in one, see Figure 4-44.Figure-4-44-Shading-system-type-application
(4) Awning
The awning is located at the upper part of the outer door of the building entrance, which is used to cover the rainwater and protect the outer door from the rain. The use of double glass components or hollow components as awning,

Energy saving, practical, cost savings, highlighting the sense of science and technology, the formation of light and shadow fantastic, can be described as the best of its kind, see Figure 4-45.Figure-4-45-Awning-Application

Figure 4-41 Skylight on top of flat roof
Figure 4-42 Application of a floating plate
Figure 4-44 Shading system type application
 Figure 4-45 Awning Application

Today, with the market development, photovoltaic components and building technology is the rapid development of integration, and achieved good results, but the real success of the BIPV program is also one of the few. In the overall design of the program, integrated photovoltaic system is not simply forced to join the panel or directly replace the original building materials in the building, but also covers the building of the outer layer of other functions. For example, the glass structure of a photovoltaic system is mounted on a sloping roof to act as a waterproofing layer, which can also be mounted over a waterproofing layer to resist the direct radiation of solar ultraviolet light to extend the waterproof layer life. PV systems can also be placed on roofs as building elements or as shelter systems. Heating, cooling and daylight control systems can also be added to the PV and building integration systems as an effective part of the insulation. But the most important point is that architects can master the performance of solar cells early in the design process and discover the possibilities of integration in an accurate and creative way. If a building is not initially planned to install solar energy, then installing a PV system is not a Items are simple and inexpensive. PV system is a building design factors, should be fully considered in the initial design, in order to truly achieve the integration of solar energy and construction.


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