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Published in:
2020 | OriginalPaper | Chapter
Study on Effect of Different Wall Insulation Structures on Building Energy Consumption in Low Latitude Region: A Case Study in Qionghai, China
Authors : Chenrong Yu, Jingchao Xie, Peng Xue, Jiaping Liu, Ying Ji
Published in: Proceedings of the 11th International Symposium on Heating, Ventilation and Air Conditioning (ISHVAC 2019)
Publisher: Springer Singapore
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Abstract
Qionghai is located in the low latitude region where the solar altitude angle is high. It is a typical climate with high temperature, high humidity, intense solar radiation, and small daily temperature variation. Under such climate conditions, designing optimal wall insulation structures is critical for achieving building energy saving. This paper takes a hotel building as a case, to simulate energy consumption of the building with different wall insulation structures in Qionghai by EnergyPlus software. The results show that building envelope insulations have obvious insulation effect, and the energy saving effect of external insulation and sandwich insulation is better than internal insulation. Internal insulation decreased the cold load index of 10.34%, while external insulation and sandwich insulation, respectively, reduce the cold load index of 12.21 and 12.34%. The energy saving effect of the three wall insulation structures would decrease with the increase of autoclaved lime-sand brick layer thickness.