Japan collection of residential energy-saving design embodied in four main areas.
First, improve the confined nature. Improve confined, is to minimize the wall, the courtyard and on the ground
Gou Peijian and building materials of all kinds between the cracks, minimize indoor and outdoor hot and cold air convection.
And not even confined to impose insulation materials can not achieve energy-saving effect. However confined of good living
I need to set up home ventilation, regular ventilation.
Second is to improve the insulation of. Is to improve the insulation of insulation materials, insulation Goupei Jian and Yan
Grid construction standards to reduce indoor heat loss. At present, the use of thermal insulation is to improve the performance of residential insulation
The most effective approach. Thermal insulation and the insulation of traditional methods, the use of thermal insulation materials will be room
Within the space completely covered up, leaving the slightest crack.
Third, the combination of a variety of energy use. That is, in addition to general power, can also use the sun
Energy, wind power, geothermal, fuel cells and all kinds of waste heat, reducing energy consumption in the petrochemical.
The fourth is three-dimensional green. Green is the three-dimensional structures can be as much as possible to increase green space -
The absorption of solar thermal plants, reducing the surface temperature of the building. Generally include the courtyard, balconies, wall
Walls and roof of the green.
Britain: pre-construction to audit energy consumption
The British Government recently made a decision, from April 2008 onwards, museums, exhibition hall and the Government Office
Construction of public buildings, such as energy consumption will be announced Zhangbang to mobilize social forces to strengthen supervision in order to promote the whole
States to achieve energy-saving emission reduction targets.
In Britain, pre-construction new building energy analysis report must be submitted to the local government building control
And the Office of Planning Committee on the examination, approval before construction. In the design of new buildings, the design staff
Must wind, light, cold, heat, sound consider the five elements of comprehensive energy conservation issues.
In the design, construction, fluid dynamics engineers to use the building to calculate the flow of air
Influence, to prevent the wind is too large, stadium and other public facilities affect the use of wind or too small, nuisance
Hinder the emission of air pollutants.
In lighting, design staff to make use of simulation software, calculated each year on the
When the sun's position, the light intensity, by improving the structure and direction to achieve energy-saving purpose.
Germany: passive housing development
Passive housing means housing does not need to take the initiative to basic energy supply in Germany, passive housing
Annual heating energy consumption per unit area, only 15 degrees, far below the current standard of 75 German unit.
Germany in the late 1990s and established the first real passive housing, at present, Germany
States have been passive for the 4000-6000 housing units.
Germany earliest passive housing built in 1999, 90 square meters per household for the three bedroom, the main
For the wooden structure. The cost of housing construction higher than ordinary housing seven percent and operating cost is very low, use
Solar heating, electricity can be self-sufficient, in 2004 a year of heating, water, electricity only
114 euros.
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