双层玻璃幕墙在夏热冬冷气候区应用的能耗研究
发布时间：2019-05-06 11:45
【摘要】：双层玻璃幕墙相对于单层玻璃幕墙来说,在隔声性能,能耗效率等方面具备一定的优势,这使其逐渐被广泛应用于夏热冬冷地区新建高层办公建筑中。本文以杭州地区气象条件为基础,通过CFD模拟手段计算实际项目中一种双层玻璃幕墙的热工特性,得到该双层玻璃幕墙系统夏冬季工况下室内得热量与太阳辐射及室内外温差之间的关系式。该关系式表征了幕墙系统的两大特征：太阳得热系数(SHGC)和有效传热系数(U值)。同时,根据瑞士材料实验所(EMPA)进行中空玻璃窗实验得到的数据验证了该系统的室内得热和太阳辐射及室内外温差之间存在关系式,为后续双层玻璃幕墙的研究提供基础。 同时,还研究了通道宽度、进出口大小和层高对于双层玻璃幕墙系统室内得热的影响。适当的通道宽度和进出口大小会改善双层玻璃幕墙系统的热工性能,而层高对于双层玻璃幕墙的热工性能的影响很小 应用该关系式简便估算了该幕墙系统在杭州典型气象年中夏季6～8月份间的冷负荷值和冬季12～2月份间的热负荷值。选择的双层玻璃幕墙具有很低的太阳得热系数,通过计算得到双层玻璃幕墙在夏季通过减少冷负荷降低能耗,在冬季则限制了太阳辐射的利用。该结果显示在双层玻璃幕墙设计的过程中,根据夏冬季气候适应性特征,应将其隔热能力和保温能力分开进行研究。 末章总结了本文的主要工作(结论)、存在的问题及进一步展望。
[Abstract]:Compared with single-layer glass curtain wall, double-layer glass curtain wall has some advantages in sound insulation performance and energy consumption efficiency, which makes it widely used in newly built high-rise office buildings in hot summer and cold winter areas. In this paper, based on the meteorological conditions in Hangzhou, the thermal properties of a double-layer glass curtain wall in a practical project are calculated by means of CFD simulation. The relationship between indoor heat yield and solar radiation and temperature difference between indoor and outdoor is obtained under summer and winter working conditions of the double-layer glass curtain wall system. This formula represents two characteristics of curtain wall system: solar heat gain coefficient (SHGC) and effective heat transfer coefficient (U value). At the same time, according to the data obtained from the hollow glass window experiment carried out by (EMPA), a Swiss material laboratory, the relationship between indoor heat gain, solar radiation and indoor and outdoor temperature difference is verified, which provides a basis for the further study of double-layer glass curtain wall. At the same time, the influence of channel width, inlet and outlet size and layer height on indoor heat gain of double-layer glass curtain wall system is also studied. Proper channel width and inlet / exit size will improve the thermal performance of the double-layer glass curtain wall system. However, the influence of layer height on the thermal performance of double-layer glass curtain wall is very small. The formula is used to estimate the cold load value of the curtain wall system in the typical meteorological year of Hangzhou from June to August in summer and the heat load value from December to February in winter. The selected double-layer glass curtain wall has a very low solar thermal coefficient. The calculation results show that the double-layer glass curtain wall reduces the cooling load and energy consumption in summer and limits the utilization of solar radiation in winter. The results show that in the process of double-layer glass curtain wall design, according to the characteristics of climate adaptability in summer and winter, the thermal insulation ability and thermal insulation ability should be studied separately. The last chapter summarizes the main work of this paper (conclusion), the existing problems and future prospects.
【学位授予单位】：浙江大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU111.4
本文编号：2470150
[Abstract]:Compared with single-layer glass curtain wall, double-layer glass curtain wall has some advantages in sound insulation performance and energy consumption efficiency, which makes it widely used in newly built high-rise office buildings in hot summer and cold winter areas. In this paper, based on the meteorological conditions in Hangzhou, the thermal properties of a double-layer glass curtain wall in a practical project are calculated by means of CFD simulation. The relationship between indoor heat yield and solar radiation and temperature difference between indoor and outdoor is obtained under summer and winter working conditions of the double-layer glass curtain wall system. This formula represents two characteristics of curtain wall system: solar heat gain coefficient (SHGC) and effective heat transfer coefficient (U value). At the same time, according to the data obtained from the hollow glass window experiment carried out by (EMPA), a Swiss material laboratory, the relationship between indoor heat gain, solar radiation and indoor and outdoor temperature difference is verified, which provides a basis for the further study of double-layer glass curtain wall. At the same time, the influence of channel width, inlet and outlet size and layer height on indoor heat gain of double-layer glass curtain wall system is also studied. Proper channel width and inlet / exit size will improve the thermal performance of the double-layer glass curtain wall system. However, the influence of layer height on the thermal performance of double-layer glass curtain wall is very small. The formula is used to estimate the cold load value of the curtain wall system in the typical meteorological year of Hangzhou from June to August in summer and the heat load value from December to February in winter. The selected double-layer glass curtain wall has a very low solar thermal coefficient. The calculation results show that the double-layer glass curtain wall reduces the cooling load and energy consumption in summer and limits the utilization of solar radiation in winter. The results show that in the process of double-layer glass curtain wall design, according to the characteristics of climate adaptability in summer and winter, the thermal insulation ability and thermal insulation ability should be studied separately. The last chapter summarizes the main work of this paper (conclusion), the existing problems and future prospects.
【学位授予单位】：浙江大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU111.4
【参考文献】
相关博士学位论文 前1条
1 李保峰;适应夏热冬冷地区气候的建筑表皮之可变化设计策略研究[D];清华大学;2004年
相关硕士学位论文 前5条
1 王振;夏热冬冷地区双层皮玻璃幕墙的气候适应性设计策略研究[D];华中科技大学;2004年
2 刘晶晶;双层玻璃幕墙的节能设计研究[D];清华大学;2006年
3 江坤;双层玻璃幕墙热工性能的模拟及分析[D];华中科技大学;2007年
4 魏琦君;太阳辐射条件下双层皮玻璃幕墙性能动态分析[D];长安大学;2008年
5 何芸芸;通风双层玻璃幕墙热工测试与节能分析[D];南京理工大学;2010年
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