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节能,是当今世界瞩目的重大课题。建筑能耗在整个能耗中占有重要的地位,据估计我国能耗结构中建筑能耗约占20%～30%。近年来建筑节能在国内已引起愈来愈广泛的重视。建筑能耗是指创造人类生活和生产活动的环境以及维持该环境满足人类生活或生产活动需要所消耗的能,概括地说包括建造能耗和使用能耗两大部分。建筑节能就是在使建造速度、质量及使用功能满足相等需要或达到相同目的条件下所节约下来的能量,应着眼于建造能耗和使用能耗所涉及
Energy conservation is a major issue in the world today. The energy consumption of buildings occupies an important position in the entire energy consumption. It is estimated that the energy consumption of the buildings in China’s energy consumption structure accounts for about 20% to 30%. In recent years, building energy conservation has attracted more and more attention in China. Building energy consumption refers to the environment that creates human life and production activities and the energy consumed to maintain the environment to meet the needs of human life or production activities. Generally speaking, building energy consumption includes construction and energy consumption. Building energy efficiency is the energy saved under the condition that the construction speed, quality and use functions meet the same needs or achieve the same purpose. It should focus on the energy consumption of construction and the energy consumption involved.