The hottest green building curtain wall that can b

2022-08-06
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Green building curtain wall that can "breathe" as a major building component, glass curtain wall needs to focus on its own energy conservation, create a comfortable indoor environment, and consider Green functions such as resource conservation and renewable energy utilization, so as to adapt to the current rapid development of green buildings

characteristics and requirements of green curtain wall

most of the energy consumption in the building is used for lighting, ventilation, heating and cooling to create an artificial indoor climate. The curtain wall is the skin of the building, so the green curtain wall should have the functions of natural lighting, effective ventilation, noise shielding, energy saving and pollution prevention, and can be realized or adjusted through the curtain wall structure

curtain wall and natural lighting

natural lighting is to introduce sunlight into the interior of the building and distribute it in a certain way to provide better lighting than artificial light sources. Natural lighting can change the intensity, color and vision of light, forming a healthier and more exciting working environment than artificial lighting system

statistics show that the energy consumption of lighting in buildings and sharing with the industry the latest trends, development trends and utilization in this market area account for 40% - 50% of the total energy consumption, and the increase of cooling load caused by the resulting waste heat in the season when cooling is required accounts for 3% - 5% of the total energy consumption

therefore, reasonable design and effective use of natural lighting can significantly reduce the energy consumption of lighting in buildings, and also reduce the power demand, pollution and by-products caused by power generation, which is consistent with the purpose of green buildings. Natural light can constantly meet the visual requirements of people, which is the requirement of modern buildings for the lighting performance of curtain walls. Nylon material is not easy to absorb sweat, and it is also one of the ways to save energy for green buildings

curtain wall and natural ventilation

indoor air quality is the result of the interaction of many complex factors, and ventilation can provide users with enough fresh air and eliminate microbial pollution sources, which is an important way to improve indoor air quality

according to different ventilation technologies, it can be divided into mechanical (auxiliary) ventilation and natural ventilation. As a peripheral protection system, the size of the new air outlet must meet the requirements of the new air volume in the mechanical (auxiliary) ventilation design of the curtain wall; It must be located away from the pollution source. Natural ventilation, which does not consume non renewable energy, is a widely used technical measure for green buildings

curtain wall and building energy conservation

the most important factor affecting curtain wall energy conservation design is climate. Different design strategies and technical measures should be adopted for different climatic conditions such as dry heat, humid heat, warm or cold. The usual method is to select appropriate materials and reasonable structural measures to improve the energy-saving efficiency of curtain walls; What is more active is to collect and utilize the natural environmental energy of buildings such as wind and solar energy to save the consumption of non renewable energy

curtain wall and "light pollution"

the so-called "light pollution" of curtain wall refers to that due to the reflective performance of glass, the curtain wall reflects sunlight, heat and night light to the surrounding buildings or roads, resulting in local temperature rise in summer or too bright windows at night, affecting people's normal living, or causing visual interference to pedestrians and drivers on the road

this problem has made people very disgusted with the glass curtain wall, which is also contrary to the concept of green curtain wall and is quite different from the green building advocated. With the continuous development of curtain wall materials and construction technology, we can solve the "light pollution" caused by the reflection of glass curtain wall from the following aspects

several common green curtain walls

green energy-saving curtain walls are curtain walls with pollution-free (or very low pollution) and environmental protection and energy saving functions. This is the inevitable trend of curtain wall development in the future. At present, there are three types of green energy-saving curtain walls that are widely used and studied: photoelectric curtain wall, double-layer dynamic energy-saving curtain wall and ecological curtain wall

photoelectric curtain wall

photoelectric curtain wall is a new type of building curtain wall integrating power generation, sound insulation, heat insulation, safety and decoration functions. It uses photocell and photoelectric panel technology to convert sunlight into electricity. The key technology is solar photovoltaic technology

photocell is a highly sustainable technology with almost no maintenance, long service life and no pollution in the photoelectric conversion process. A photovoltaic panel is a diaphragm type photocell that looks like tinted glass. They use a part of the incident sunlight to generate electricity, while allowing a part of the sunlight to pass through and provide illumination

photovoltaic panels generate direct current, which is easy to store in the battery, and then use the transformer device to convert the direct current into alternating current for building equipment. Photovoltaic panels are mainly designed as inclined roofs and also serve as roof shading, which can effectively collect and utilize solar energy. The photoelectric panel can also be used as a sun shading device for the lighting part, and also play the role of sun shading and collecting solar energy

photoelectric curtain wall is a new type of functional building curtain wall, which integrates solar photovoltaic technology and curtain wall technology. It uses solar power generation technology to convert the sunlight that was previously shielded as a harmful factor into electric energy that can be used by people. Another great significance of photoelectric curtain wall is that it integrates solar power generation technology into building curtain wall products, which does not occupy special land, and solar photovoltaic panels can also replace traditional curtain wall panel materials such as glass, without repeated investment

double layer dynamic energy-saving curtain wall

double layer dynamic energy-saving curtain wall is a curtain wall composed of double-layer structure, which is composed of outer curtain wall, inner curtain wall, sun shading curtain wall, air inlet curtain wall and air outlet device. Generally, there are doors and windows that can be opened on the inner layer. Under the shelter of the outer curtain wall, the normal opening of the inner doors and windows can be ensured no matter how bad the outdoor environment is. The air inlet and outlet of the outer curtain wall and the opening of the inner doors and windows can be controlled. The heat channel between the inner and outer layers can use solar energy to produce chimney effect or greenhouse effect, so as to ensure necessary ventilation and air exchange and save energy. Therefore, the double-layer dynamic energy-saving curtain wall is also called the hot channel curtain wall, which is divided into two systems: natural ventilation and forced ventilation according to the ventilation principle

the double-layer dynamic curtain wall is equipped with electricity in the curtain wall. At the same time, it also brings new opportunities and challenges to the injection molding industry, such as dynamic flat open inner inverted window, parallel outward opening window, electric sunshade shutter and electric vent; The top daylighting roof is in the form of steel structure. The daylighting roof is divided into two layers. The upper layer is an electric sunshade shutter, and the lower layer is a hidden frame glass curtain wall with an electric sliding window; The daylighting curtain wall accounts for a large proportion of the whole curtain wall area, so it is easy to obtain sufficient light. Its technical performance includes:

using the hot pressing principle and chimney effect, it allows fresh air to enter the room, discharges the indoor dirty air to the outside, and can effectively prevent dust from entering the room, with green environmental protection effect

it is very reasonable for "cold treatment" in winter and "heat treatment" in summer. It has excellent functions of thermal insulation in winter and summer, so it has typical dynamic energy saving

reasonable daylighting function can adjust the change of light and change the indoor environment according to the needs of users

excellent sound insulation and noise reduction function, creating a quiet working and living environment for users

high technical content, special structure, and good visual aesthetics

ecological curtain wall

ecological curtain wall develops with the development of building ecology. The so-called ecological building refers to the building that can change the building ecology and building color according to the use function or use requirements of the building. According to the use function or use requirements, the building curtain wall that can change the ecology and color is called the ecological curtain wall. The ecological curtain wall is a kind of ecological building. It takes "sustainable development" as the strategy, takes the use of high and new technology as the guide, and also has a pull-up platform in the disc. It is appropriate to use the bioclimate buffer layer to save resources and reduce pollution. It is a healthy and comfortable outer envelope of the ecological building

the ecological curtain wall can establish a buffer zone between the building and the surrounding ecological environment, which can not only prevent the indoor impact of various extreme climates to a certain extent, but also strengthen the effect of various micro climate regulation, so as to meet people's various comfort requirements, and achieve the goal of appropriate energy conservation. The construction of ecological curtain wall is beyond the scope of conventional architecture and architectural engineering. It is a system engineering. Architects, structural engineers and curtain wall engineers need to be familiar with the principle of mechanical transmission, understand the knowledge of mechanical processing, assembly, physics, chemistry and automatic control, and need the coordination of multiple disciplines and the cooperation of all disciplines

curtain wall, as an advanced building exterior enclosure system and high-grade exterior decoration product, should not only be a luxury shell to show off wealth, but should be an integration of ecological building awareness and advanced building technology with the purpose of green building and the goal of sustainable development

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