建筑工程专业英语unit10

The so-called Building energy saving, initially refers to reduce the loss of energy in buildings, but now commonly known as "Improving energy efficiency in the building", that is, people can rationally use energy and constantly improve energy use efficiency, under the premise of improve the comfort of buildings.
Building energy saving techniques
Ideal energy conservation buildings should demand following points in least energy consumption, one is in different season and different areas that can control reception and prevent sun radiation, secondly, it can keep the comfort of room in different seasons. Thirdly, necessary ventilation and gas exchange can be realized.
In order to carry on long-term building energy saving effectively, we must let the people know it, and let the entire society pay attention to it, so that our cause of building energy saving would have hoped that make substantial progress.
In severe cold and cold regions, building energy-saving design develop relatively early and it have been more experience, the main consideration is the winter insulation. In hot summer and cold winter areas, it can be said that the greatest potential in energy saving.
• enclosure:围护结构，围隔
In these three sides, high techniques play a crucial role. Of course, building energy conservation also adopts some traditional techniques, but it is based on advanced experiment reasoning and scientific theory analysis.
At present, the building energy-saving has been being carried out an important task , China have promulgated a series of energy-saving regulations and standards, such as the "Regulations on management of civil building energy saving", "Civil buildings energy-saving design standards" and "Design standard for energy-saving of residential buildings in hot summer and cold winter zone" and" Public building energy-saving design standards ", which are the cause of building energy conservation in China will have a positive and farreaching influence. • promulgate:颁布;standards:标准，规范 • conservation:保护，节约
• efficiency:效率
It is to define the scope of building energy use, including air-conditioning, heating, lighting, household appliances, cooking, and other aspects of energy consumption. China is making great effort to reduce the impact of buildings on the environment.
• insulation:绝热，保温，隔热
Design should considerate the insulation balance in summer and winter. Generally in hot summer and warm winter areas, the main consideration is the summer insulation. In temperate areas, more attention should be paid to the summer insulatwk.baidu.comon and little attention be paid to the winter insulation.
Different climatic regions of the impact of energy-saving
Geographical feature of the climate zones in China have great influence on the design of energy efficient building, shown in Fig 11.1, In accordance with the climatic conditions in China, is divided into five zones: severe cold, cold, hot summer & cold winter, hot summer& warm winter temperate.
• substantial:持续的
To understand building energy-saving, we must first understand why we pursue building energy-saving. At present, Chinese urbanization process is experiencing an acceleration period , the rapid industrial growth, the acceleration of urbanization, and the upgrading of the consumption structure, making our energy and economic resources demand more urgent.
• household appliances:家用电器 • environment:环境
The Ministry of construction has defined the key points of the implementation of the green buildings concept in the current Chineseefficiency in building energy consumption, efficiency in urban development land use, efficiency in building construction material usage, efficiency in water usage of the building industry and environment protection. • Ministry of construction:建设部 • implementation:实施
Lesson11 Building Energy-saving
Energy-saving of building is a great problem of country's economic and people's livelihood, and is an important part of energy-saving. It have been underway for many years in foreign countries, and could even be said is known widely. But it is still a new term for Chinese people, let alone ordinary people, even if the specialists who engage in the building construction, can not talk it clearly. • Energy-saving:节能
1. Reducing Energy Consumption and Improving On Efficiency of Energy Usage In order to retain environment quality of living space, warmness is required in cold season to improve temperature of room, cold is required in hot season to reduce temperature of room, both of them usually need consume energy to realize them.
• resources:资源
In the building sector, the ratio of building energy consumption to China's total energy consumption of the commodity had been promoted from 10% in 1978 to the current 30%, unit building area energy consumption is 2-3 times as many as developed countries, and is more than all developed countries. China has become the world's second largest energy consumption country. Clearly, building energy saving has been so grasping. • commodity:商品
• ventilation:通风、换气
At present, the methods of building energy conservation mainly include: trying to reduce consumption of non-reproductive energy, improving using efficiency of energy, reducing energy loss of building enclosure structure, decrease the energy loss of building establishment operation.