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首页> 外文期刊>Building and Environment >Are the relative variation rates (RVRs) approximate in different cities when the same energy-efficiency reform is taken to the same building?
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Are the relative variation rates (RVRs) approximate in different cities when the same energy-efficiency reform is taken to the same building?

机译：当对同一建筑物进行相同的能效改革时，不同城市的相对变化率（RVR）是否近似？

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摘要

On the assumption that the same envelope reform is made on two buildings located in 19 cities of China, America and Europe, this paper simulates the annual heating and cooling energy consumption before and after the reform with tools of DOE-2, DeST-h and the authors' characteristic temperature method (CTM), and makes further analysis on the relative variation rates (RVRs) of energy consumption. It can be found that the absolute reductions of annual heating and cooling needs may differ up to tens of times in different cities for the same buildings with the same energy-efficient measures. On the other hand, there is no obvious difference in initial investment for the same energy-efficient reform in various cities of a country or an economic district, therefore, the energy efficiency potentiality and economic value of the same reform are completely different under various climatic conditions, which illustrates that it is very important to harmonize the local climates when selecting an energy-efficient project in different locations. However, when the same measures are taken to the same building, the annual heating RVRs are approximate and the annual cooling RVRs are also approximate in different cities, which is the common rule of building energy efficiency.
机译：假设在中国，美国和欧洲的19个城市的两座建筑物上进行了相同的信封改造，本文使用DOE-2，DeST-h和Dee-h工具模拟了改造前后的年供热和制冷能耗。作者的特征温度法（CTM），并进一步分析了能耗的相对变化率（RVR）。可以发现，对于具有相同节能措施的相同建筑物，在不同城市中，每年供暖和制冷需求的绝对减少可能相差数十倍。另一方面，在一个国家或经济区的各个城市中，同一节能改造的初始投资没有明显差异，因此，同一改造在不同气候下的能效潜力和经济价值完全不同。条件，这说明在不同位置选择节能项目时，协调当地的气候非常重要。然而，当对同一建筑物采取相同的措施时，不同城市的年供热RVR近似，而年供冷RVR也近似，这是建筑节能的普遍规则。

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