气凝胶玻璃系统动态传热模型及能耗性能研究
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摘要
研究纳米气凝胶玻璃对太阳辐射的透过、吸收特性,考虑室外太阳入射角变化和气凝胶材料吸收太阳辐射引起温度变化的影响,建立动态状态空间传热模型和太阳辐射传递模型,并实验验证模型的准确性。模拟分析该气凝胶玻璃在长沙地区的节能潜力,结果表明与中空玻璃对比,通过气凝胶玻璃的传热得热增加,太阳辐射得热减少,夏季气凝胶玻璃引起的总得热量比中空玻璃减少约20%,冬季通过中空玻璃的室内得热量比气凝胶玻璃低61%。
Considering the variation of solar incident angle and glass temperature change influenced by heat absorption of aerogel,we study the optical performance of aerogel glazing system and establish a dynamic state space model which has been validated by the experiment. The model is used to simulate energy performance of aerogel glazing system in Changsha. The results showed that after using aerogel glazing system,indoor transmitted solar radiation decreased while heat transfer from interior glass increased,leading to around 20% decrement in total heat gain in summer compared with traditional double glazing system. And the latter will have 61% decrease in heat gain in winter.
Considering the variation of solar incident angle and glass temperature change influenced by heat absorption of aerogel,we study the optical performance of aerogel glazing system and establish a dynamic state space model which has been validated by the experiment. The model is used to simulate energy performance of aerogel glazing system in Changsha. The results showed that after using aerogel glazing system,indoor transmitted solar radiation decreased while heat transfer from interior glass increased,leading to around 20% decrement in total heat gain in summer compared with traditional double glazing system. And the latter will have 61% decrease in heat gain in winter.
引文
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[2]Cuce E,Cuce P M,Wood C J,et al.Toward aerogel based thermal super insulation in buildings:Acomprehensive review[J].Renewable and Sustainable Energy Reviews,2014,34(3):273-299.
[3]王珊,王欢,杨建明,等.气凝胶节能玻璃的研究与应用进展[J].建筑节能,2016,44(8):50-54.[3]Wang Shan,Wang Huan,Yang Jianming,et al.Advances on research and application of aerogel glazing for energy efficiency[J].Building Energy Efficiency,2016,44(8):50-54.
[4]Reim M,Beck A,K?rner W,et al.Highly insulating aerogel glazing for solar energy usage[J].Solar Energy,2002,72(1):21-29.
[5]Schultz J M,Jensen K I,Kristiansen F H.Super insulating aerogel glazing[J].Solar Energy Materials&Solar Cells,2005,89(2):275-285.
[6]Buratti C,Moretti E.Experimental performance evaluation of aerogel glazing systems[J].Applied Energy,2012,97(3):430-437.
[7]Ihara T,Gao Tao,Grynning S,et al.Aerogel granulate glazing facades and their application potential from an energy saving perspective[J].Applied Energy,2015,142:179-191.
[8]清华大学DEST开发组.建筑环境系统模拟分析设计方法:DeST[M].北京:中国建筑工业出版社,2006.[8]Tsinghua University DeST Development Group.Building environment design simulation software DeST[M].Beijing:China Architecture&Building Press,2006.
[9]吴军翟.夏热冬冷地区双层玻璃幕墙热工性能模型分析[D].长沙:湖南大学,2013.[9]Wu Junzhai.Research on thermal calculation model of ventilated double skin fa?ade in hot summer cold winter zone[D].Changsha:Hunan University,2013.
[10]章熙民,任泽霈,梅飞鸣.传热学[M].第5版.北京:中国建筑工业出版社,2003.[10]Zhang Ximin,Ren Zepei,Mei Feiming.Heat transfer[M].5th Ed.Beijing:China Architecture&Building Press,2003.
[11]江亿,李元哲,狄洪发.关于透过体系透过率计算方法的探讨[J].太阳能学报,1980,1(2):166-175.[11]Jiang Yi,Li Yuanzhe,Di Hongfa.A research of the method for calculation of the transmittance of partially transparent mediums[J].Acta Energiae Solaris Sinica,1980,1(2):166-175.
[12]彦启森,赵庆珠.建筑热过程[M].北京:中国建筑工业出版社,1986.[12]Yan Qisen,Zhao Qingzhu,et al.Building thermal process[M].Beijing:China Architecture&Building Press,1986.