First, the basic connotation of green building
1. Ensure sunshine and reduce noise.
Indoor, if the daily sunlight can meet the lighting demand, it can reduce the use of daytime lighting equipment, reduce the use of power resources, and thus reduce energy consumption. Moreover, sunlight has good color and no pollution, which is an important part of indoor green environment. A healthy light environment should not affect the quality of sunlight at different times and places. At the same time, the acoustic environment has a great influence on people's body and mind. In green buildings, it is necessary to emphasize the healthy and green acoustic environment, reduce the surrounding noise pollution, and add solid sound insulation materials to the wall materials.
2. Ensure a comfortable indoor temperature.
Comfortable indoor temperature affects people's living comfort and work efficiency. In ordinary building engineering, air conditioning system is generally used to maintain indoor comfortable temperature, but it will consume a lot of energy and destroy the atmosphere during the operation of air conditioning system. Green building should not only make indoor temperature comfortable and healthy, but also pay attention to the use of clean energy such as wind energy and solar energy, and analyze the temperature changes caused by the changes of local climate and internal environment of the building to realize the comfortable and healthy internal environment of the building.
Second, explore the application of green building technology
At present, green building technology has been promoted and applied to a certain extent, for example, in the following aspects.
1. External wall insulation technology
There are three main forms of external wall insulation: internal insulation, external insulation and sandwich insulation. Relatively speaking, the external insulation effect of the external wall is good, and it is economical and practical to use. Generally, the thermal insulation layer of external wall adopts thermal insulation materials with the characteristics of light weight, high efficiency, low water absorption and high fire resistance, which can better improve the living environment where the building is located, reduce the weight of the wall, occupy a small area, have low project cost, effectively protect the main body of the building and prolong the service life of the building. It is widely used in architectural design and renovation, and it is a widely promoted thermal insulation and energy-saving technology at present. At present, the external wall insulation technologies mainly include polyurethane foam, glass wool felt and extruded polystyrene foam. However, at present, the commonly used polymer moisturizing slurry is mainly used. In addition, the new development trend of external wall insulation materials is composite insulation board, which further realizes the factory integrated production of insulation layer and decorative layer. The outstanding advantages of this composite thermal insulation wallboard are fast and convenient construction, accurate positioning and not easy to loosen. It can effectively reduce the influence of the wall itself on the thermal insulation effect, and realize the factory production of materials, product structure, quality standardization and so on. External wall thermal insulation technology is the future development trend of green energy-saving technology in China, which greatly simplifies the construction procedure of external wall thermal insulation.
2. Double skin curtain wall technology
At present, double skin curtain wall technology is widely used in green ecological buildings, which can also be called "breathable skin of buildings". Which mainly solves the problem of high energy consumption of the traditional glass curtain wall. As the building envelope, double-skin glass absorbs solar energy in winter to improve indoor temperature, and in summer, the air layer between double-skin glass can be used to transfer heat and reduce indoor temperature, thus reducing annual energy consumption and saving refrigeration and heating costs. Double-skin curtain wall can be used as an additional sun room for buildings, which is the simplest way to use solar energy to heat buildings, and has wide climate adaptability, so it has been applied in practice all over the world. With the development of the times, more new technologies and materials, such as photoelectric glass, are added to the double-skin curtain wall, which strengthens the application performance of the double-skin curtain wall and makes the double-skin exterior wall technology develop in a more efficient and energy-saving direction.
3. Renewable energy integration technology
The common renewable energy sources in construction projects mainly include solar energy, wind energy, geothermal energy and hydropower. Scientific use of renewable energy can effectively reduce the consumption of other energy sources and reduce environmental pollution caused by energy consumption. If all kinds of renewable energy can be integrated, the sustainable development of buildings can be realized. At present, solar hot water system has appeared in many construction projects, which uses solar energy to heat water and reduce the use of electric energy. This is a mature green technology at present. In addition, the ground source heat pump system uses geothermal resources in the land to heat and cool rooms, which is also one of the renewable energy integration technology products.
Third, the conclusion
With the aggravation of environmental pollution, the life and production of people all over the world are seriously threatened. We need to explore green ecological building technology to reduce the negative impact of energy consumption and environmental pollution on human survival. To sum up, at present, the theoretical research on green building and green building technology has achieved certain results and been widely used in architectural practice. Therefore, we should increase the use of green technology in future construction, make the construction projects in China develop in a greener and healthier direction, and ensure people's happiness and healthy life.
The above are collected and sorted by Zhong Da Consulting Company.
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