Green building development status and trends?

In recent years, as the concept of environmental protection gradually deepened in people's hearts, the public environmental awareness of the community continues to increase, but also to a certain extent to promote the development of green building. The development of green building can save resources, reduce pollution, and create a relatively healthy living environment and space for the public. Based on this, the article analyzes the current situation and trend of green building development for peer reference.

1 Overview of the connotation of green building

Green building mainly refers to a class of buildings that are harmless to the environment, can make full use of the environment's natural resources, and can be developed sustainably without destroying the basic ecological balance of the environment. In the process of green building construction, the green concept runs through the entire life cycle of the building, including the design stage, construction stage, operation stage and later maintenance and demolition stage. The full integration of green concepts means that resource consumption can be reduced, environmental pollution can be avoided to the greatest extent possible, and a suitable environment can be created for the occupants. Compared with traditional buildings, the energy consumption of green buildings is greatly reduced, and the surrounding ecological environment will be fully considered in the design process, so as to carry out targeted design and make it fit with the surrounding environment [1]. At the same time, the green building will make full use of natural resources, including green resources, natural water, sunlight, etc., can make the internal and external environment effectively connected, forming an open pattern. Overall, green building is an inevitable trend in the development of building products, which has a positive effect on protecting the environment and realizing sustainable development.

2 Analysis of the current situation of green building development

China's green building began in the 1990s, in the "Eleventh Five-Year Plan" period of rapid development, in terms of policy, standards, technology, promotion and other aspects have formed a relatively sound system. Although China's green building has achieved certain development results, but compared with Europe and the United States and other developed countries there is still a gap, is still in the primary stage of development. At the same time, China's green building development presents a typical regional characteristics, the eastern coast of the developed areas of faster development, while the western region of the relatively slow pace of development [2]. In the process of green building construction, solar technology is one of the most widely used green technologies.

Integration of solar collectors into facade design, balcony design, and roof design, the current solar water heating system and building integration technology has been very mature. Under normal circumstances, the technology payback cycle of 3 ~ 4 years, applicable to hotels, hospitals, residential installation applications, even if the high-rise building still has a variety of technology system types can choose, has good applicability. In addition to solar energy technology, ground source heat pump technology is also one of the more common technologies in green buildings. Ground source heat pump is a system that absorbs energy from the earth, including soil, surface water, groundwater and other natural energy sources, absorbs energy in winter, releases heat in summer, and supplies heat or cold to the building with the help of a heat pump. Ground source heat pump technology is energy efficient, and does not produce environmental pollution, can be heating, can also be heating, can be used for public **** building and residential buildings.

3 Green Building Development Trend Outlook

In the future development of green building, sustainable building materials will be reused. Sustainable building materials can be degraded and recycled, which is conducive to alleviating ecological pressure and saving resources. At the same time, air convection design will be increasingly emphasized. During the construction of some green buildings, air convection can be realized by optimizing the relevant design, which is conducive to saving energy. Following the principle of gas flow, a 3-story garden atrium can be designed on both sides of the building every 5 floors, which can transform the building into a breathable building. In addition to solar and geothermal energy, renewable energy sources such as wind and biofuels will be increasingly used in green building products. While meeting the functional needs of buildings, they can also reduce greenhouse gas emissions, which is conducive to the long-term economic, environmental and social benefits of building products. In terms of green building design, it will develop in the direction of systematization. In the future, urban buildings will no longer be composed of relatively isolated buildings. These buildings will be interconnected, and different buildings can realize complementary functions, forming a complete building system.

4 Conclusion

Currently, China's green building is still in the initial stage of development, in some parts of the immaturity, but the future of green building still has a great deal of space for development. Through the development of new materials, new energy-saving technologies for building optimization design, further improve the green building function, so as to achieve the unity of the building economic benefits, social benefits, environmental benefits.

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