New energy saving technology and practical applications in architecture – energy
Solar Net HC Human survival and development of energy is an important foundation for economic development depends on energy development. Today energy has become a common concern throughout the world, energy shortages as an important factor restricting economic development. Construction from building materials, construction until the building was used constantly in the consumption of energy, statistics show that Europe and the United States and other developed countries, the country's total energy consumption of building energy consumption accounts for 1 / 3, China has accounted for more than 25%. Therefore, promotion of energy saving in buildings is imperative.
Building energy efficiency is Environmental Protection Needs: We now apply the energy
mainly coal, oil and natural gas-based non-renewable energy. The energy in the process of emitting excessive use of harmful substances (carbon dioxide, sulfur, nitrogen oxides, etc.), is caused Air pollution And ecological damage of important reasons. Therefore, to promote energy efficiency, reduce emissions is to improve the living environment and quality of life in an effective way.
Building energy efficiency is to improve the living standards of need:
With the modernization development and people's rising living standards, people seeking a more comfortable living environment for the building. Winter Heating The summer air conditioning needs energy supplies. In the current very tight energy situation, energy saving construction is especially important. Building energy saving design is built to meet the requirements under the premise of reasonable comfort through technology to reduce energy consumption, improve energy efficiency, to meet the requirements of building energy efficiency.
China in building the profile of energy efficiency:
1, China's building energy consumption profile:
Statistics show that China's total building energy consumption increased year by year, total energy consumption in the proportion of the late 70s from the last century, 10%, rising to 27.8% in recent years. China is the main source of energy, coal, due to climatic conditions in most parts of China show the characteristics of hot summer and cold in winter, so our big building energy consumption, coal-fired a large number of harmful substances discharged to the environment causing serious pollution and damage. According to statistics, China's emissions CO26.67 million tons in 1999, ranking second in the world, of which 85% of coal emissions by 2000, China's emissions SO21995 million tons, ranking first in the world, of which 90% of the emissions from coal-fired , the emission of pollutants caused because 57% of urban particulate matter more than national standards, SO2 concentrations of more than 48 cities in the national discharge standard. These data indicate that the promotion of building energy efficiency in China is already around the corner.
2, an overview of the development of building energy efficiency in China:
China's building energy efficiency began in the early '80s, through the active efforts of the parties, to the end of 1995, China completed construction area of energy efficiency has reached 47 million square meters, construction area of energy efficiency in 1998 reached 100 million square meters. Some buildings built in succession around the energy-saving demonstration project, such as the Beijing Court North Village Area, Zhouzhuang district, Wolong District, Tianjin Forest Crescent Area, Gansu Research Institute of Building Sciences quarters of these projects are in energy efficiency achieved good results. For the comprehensive promotion of energy-saving design, China has developed a series of regulations and standards, such as "The People's Republic of China Energy Conservation Law", "Energy conservation design standard", "Existing Building Energy Saving Technical Specification", "Inspection of Heating Residential Buildings Standard "," building energy conservation regulations, "and so on. Believe that building energy codes and standards with the gradual improvement of the cause of China's building energy efficiency will be further spread and promotion.
New energy Development and use: 1, new energy, meaning and classification:
New energy and renewable energy concept in 1981 in the Kenyan capital Nairobi, the United Nations energy conference held in set. It is different from the currently used conventional energy, with a rich source of almost inexhaustible, and pollution of the environment is very small, is in harmony with the environment, clean energy. United Nations Development Programme (UNDP) will present new energy into three categories:
(1) large and medium hydropower. (2) of new renewable energy, including small hydropower, solar energy, wind energy, modern biomass, geothermal energy, ocean energy.
(3) traditional biomass energy. 2, new energy development and utilization of the importance of:
With the increasing demand for energy, earth resources, non-renewable energy sources will further reduce until dry. To social development and human progress in improving energy efficiency, energy conservation must also be development and use of green Environmental protection The new renewable energy sources can be. According to experts predict that by 2060, global consumption of renewable energy to total energy consumption will be developed more than 50%, a major part of the future energy mix. New energy to protect the ecological environment and sustainable development path of the important measures.
3, used in building the new energy technologies significance and future prospects:
Buildings consume large amounts of energy, the current rapid development of China's construction industry, the energy saving, environmental protection, ecological technology in engineering is the inevitable trend of building development. Solar, wind, geothermal and other new energy in the building on the effective application of limited resources, not only can replace traditional energy sources, and can reduce the emission of pollutants, protect the environment, its development and use and has broad prospects and far-reaching significance . China has abundant new energy resources, the current rapid development in solar energy utilization, solar power generation technology widely used in architecture, Solar water heaters The amount also growing at a rate of 20% per year expected by 2015, the penetration of solar water heaters will reach 25% ownership of solar power generation system will reach 320MW. In addition, as wind, geothermal and other developed areas have also made great achievements, new energy expected in China's construction business will play a big role.
Eco-energy saving technology and new energy in the construction of the actual design applications:
Used in the design of many examples of eco-energy saving technology, such as ecological agriculture Zhangjiagang house design, architectural design center building design Tsinghua University, Jinan Senior Vocational Training School library. At Beijing University Laboratory Building high-tech design of energy on the use of a number of energy saving and new energy technology. According to the campus master plan, high-energy laboratory building proposed at the Beijing University campus in the southeast corner of North south axis road is something on campus, "Metalib South", the north is the Beijing University of Science and Technology Experimental Zone, west of the school Sports Ground, location is important. Rectangular building site, something about 85 meters, 35 meters wide north-south, with a total
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