Energy optimization of building design for different housing units in apartment buildings
Energy optimization of building design for different housing units in apartment buildings
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DOI：
10.1016/j.apenergy.2012.02.006
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发表时间：
2012-06
期刊：
影响因子：
11.2
通讯作者：
Jian Yao
中科院分区：
文献类型：
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作者：
Jian Yao
目前中国建筑的能源设计注重的是整个建筑的能源效率，往往忽视了公寓楼中不同住宅单元之间的能源差异。就节能而言，最好的设计技术不仅是降低整个建筑的能源需求，而且是将不同住宅单元之间的能源差异降低到一个相对较低的水平。本文引入了一个重要指标“住宅单元之间的能源性能差异”（EDH）来评估夏热冬冷地区典型住宅建筑传统设计的弊端。然后，基于使用 DeST-h 程序进行的大量建筑模拟，九种改进的设计选项被认为是减少 EDH 的可能策略。结果表明，方案9（东窗和西窗增加可移动遮阳，降低东墙和西窗的U值）是根据当前设计的EDH改进的设计策略，将EDH降低到4%以下，远低于其他方案，同时保证了整个建筑能耗需求的降低。通过案例研究验证了该指标优化的有效性。综上所述，EDH 是优化公寓楼能源设计的一个非常有用的指标，可用于中国改进传统建筑设计。
Current energy designs for a building in China focus on the energy efficiency of the whole building and thus often neglect the energy difference between different housing units in apartment buildings. The best design technique in terms of energy savings is not only to decrease whole building energy demand, but also to reduce the energy difference between different housing units to a relatively low level. This paper introduces an important index “energy performance difference between housing units” (EDH) to evaluate the drawbacks of conventional designs on a typical residential building in hot summer and cold winter zone. Then nine improved design options were considered as the possible strategies to diminish the EDH, based on a number of building simulations with the program DeST-h. Results show that the option 9 (add movable shading for the east facing windows and west facing windows, and reduce the U-values of the east walls and west facing windows), an improved design strategy according to the EDH of the current design, reduces the EDH to less than 4% that is much lower than other options and meanwhile ensures a decrease in whole building energy demands. A case study was carried out to validate the effectiveness of this index in optimization. As a conclusion, EDH is a very useful index for optimizing energy designs of apartment buildings and can be used in China to improve conventional building designs.