双层相变材料砌块的全年应用效果研究
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摘要
为解决单一相变材料无法在全年发生相变产生节能效益的问题,提出在空心混凝土砌块中填充2种相变温度不同的相变材料构成双层相变材料混凝土砌块。以夏热冬冷地区南京某朝南房间为研究对象,通过EnergyPlus能耗软件的模拟分析功能对2种相变材料的相变温度及在砌块中的位置进行优化。研究得到,在南向外墙中应用这种双层相变砌块,相比于单层相变砌块和空心砌块可显著减小空调期制冷耗电量和采暖期制热耗电量,且能明显减小过渡季节的室内日平均温度波幅,提高热舒适度。
In order to solve the problem that a single phase change material(PCM)can't be active throughout the year to have a year-round energy saving benefits,a double layer PCM concrete block is proposed,in which two kinds of PCMs with different phase change temperatures is filled separately into the hollow concrete block. A south-facing room in Nanjing is considered as the research object,the phase change temperatures and positions of the two PCMs in the block are optimized by EnergyPlus simulation and analysis. It is concluded that,the double layer PCMs block can significantly reduce the cooling and heating power consumption compared with the hollow block and single layer PCM blocks when it is used in the south exterior wall. The daily average indoor temperature amplitude in transitional seasons is reduced significantly so that the indoor thermal comfort is enhanced.
In order to solve the problem that a single phase change material(PCM)can't be active throughout the year to have a year-round energy saving benefits,a double layer PCM concrete block is proposed,in which two kinds of PCMs with different phase change temperatures is filled separately into the hollow concrete block. A south-facing room in Nanjing is considered as the research object,the phase change temperatures and positions of the two PCMs in the block are optimized by EnergyPlus simulation and analysis. It is concluded that,the double layer PCMs block can significantly reduce the cooling and heating power consumption compared with the hollow block and single layer PCM blocks when it is used in the south exterior wall. The daily average indoor temperature amplitude in transitional seasons is reduced significantly so that the indoor thermal comfort is enhanced.
引文
[1]林坤平,张寅平,江亿.我国不同气候地区夏季相变墙房间热性能模拟和评价[J].太阳能学报,2003,24(1):46-52.[1]Lin Kunping,Zhang Yinping,Jiang Yi.Simulation and evaluation on the thermal performance of PCM wallboard rooms located in various climate regions of China in summer[J].Acta Energiae Solaris Sinica,2003,24(1):46-52.
[2]Alqallaf H J,Alawadhi E M.Concrete roof with cylindrical holes containing PCM to reduce the heat gain[J].Energy and Buildings,2013,61:73-80.
[3]孔凡红,赵强,车全越,等.夏热冬冷地区变墙体适用性模拟分析[J].太阳能学报,2016,37(4):951-956.[3]Kong Fanhong,Zhao Qiang,Che Quanyue,et al.Applicability analysis of phase change material envelope in hot summer and cold winter area[J].Acta Energiae Solaris Sinica,2016,37(4):951-956.
[4]肖伟,王馨,张寅平.定形相变墙板改善轻质墙体夏季隔热性能研究[J].工程热物理学报,2009,30(9):1561-1563.[4]Xiao Wei,Wang Xin,Zhang Yinping.Thermal analysis of lightweight wall with shape-stabilized PCM panel for summer insulation[J].Journal of Engineering Thermophysics,2009,30(9):1561-1563.
[5]肖伟,王馨,张寅平.轻质建筑中定形相变内隔墙板冬季应用效果研究[J].工程热物理学报,2011,32(1):123-125.[5]Xiao Wei,Wang Xin,Zhang Yinping.Thermal analysis on shape-stabilized PCM panel as partition walls for energy storage in winter[J].Journal of Engineering Thermophysics,2011,32(1):123-125.
[6]Li Shuhong,Zhong Kecheng,Zhou Yingying,et al.Comparative study on the dynamic heat transfer characteristics of PCM-filled glass window and hollow glass window[J].Energy and Buildings,2014,85:483-492.
[7]Zhu Na,Liu Pengpeng,Hu Pingfang,et al.Modeling and simulation on the performance of a novel double shape-stabilized phase change materials wallboard[J].Energy and Buildings,2015,107:181-190.
[8]Pasupathy A,Velraj R.Effect of double layer phase change material in building roof for year round thermal management[J].Energy and Buildings,2008,40:193-203.
[9]Diaconu B M,Cruceru M.Novel concept of composite phase change material wall system for year-round thermal energy savings[J].Energy and Buildings,2010,42:1759-1772.
[10]GB 50176-1993,民用建筑热工设计规范[S].[10]GB 50176-1993,Thermal design code for civil building[S].
[11]Huelsz G,Barrios G,Rojas J.Equivalent-homogeneouslayers-set method for time-dependent heat transfer through hollow-block walls[J].Applied Thermal Engineering,2016,102:1019-1023.
[12]Zhang Yuan,Zhuang Sunqi,Wang Qian,et al.Experimental research on the thermal performance of composite PCM hollow block walls and validation of phase transition heat transfer models[J].Advances in Materials Science and Engineering,2016,2016(4):1-15.
[13]余晓平,付祥钊,黄光德,等.夏热冬冷地区采暖期/空调期划分对居住建筑能耗限值的影响分析[J].建筑科学,2007,23(8):27-31.[13]Yu Xiaoping,Fu Xiangzhao,Huang Guangde,et al.Analysis on impacts of dividing air-conditioning/heating periods on limited value of energy consumption for residential building in hot summer and cold winter area[J].Building Science,2007,23(8):27-31.
[14]JGJ 134-2010,夏热冬冷地区居住建筑节能设计标准[S].[14]JGJ 134-2010,Design standard for energy efficiency of residential buildings in hot summer and cold winter zone[S].
[2]Alqallaf H J,Alawadhi E M.Concrete roof with cylindrical holes containing PCM to reduce the heat gain[J].Energy and Buildings,2013,61:73-80.
[3]孔凡红,赵强,车全越,等.夏热冬冷地区变墙体适用性模拟分析[J].太阳能学报,2016,37(4):951-956.[3]Kong Fanhong,Zhao Qiang,Che Quanyue,et al.Applicability analysis of phase change material envelope in hot summer and cold winter area[J].Acta Energiae Solaris Sinica,2016,37(4):951-956.
[4]肖伟,王馨,张寅平.定形相变墙板改善轻质墙体夏季隔热性能研究[J].工程热物理学报,2009,30(9):1561-1563.[4]Xiao Wei,Wang Xin,Zhang Yinping.Thermal analysis of lightweight wall with shape-stabilized PCM panel for summer insulation[J].Journal of Engineering Thermophysics,2009,30(9):1561-1563.
[5]肖伟,王馨,张寅平.轻质建筑中定形相变内隔墙板冬季应用效果研究[J].工程热物理学报,2011,32(1):123-125.[5]Xiao Wei,Wang Xin,Zhang Yinping.Thermal analysis on shape-stabilized PCM panel as partition walls for energy storage in winter[J].Journal of Engineering Thermophysics,2011,32(1):123-125.
[6]Li Shuhong,Zhong Kecheng,Zhou Yingying,et al.Comparative study on the dynamic heat transfer characteristics of PCM-filled glass window and hollow glass window[J].Energy and Buildings,2014,85:483-492.
[7]Zhu Na,Liu Pengpeng,Hu Pingfang,et al.Modeling and simulation on the performance of a novel double shape-stabilized phase change materials wallboard[J].Energy and Buildings,2015,107:181-190.
[8]Pasupathy A,Velraj R.Effect of double layer phase change material in building roof for year round thermal management[J].Energy and Buildings,2008,40:193-203.
[9]Diaconu B M,Cruceru M.Novel concept of composite phase change material wall system for year-round thermal energy savings[J].Energy and Buildings,2010,42:1759-1772.
[10]GB 50176-1993,民用建筑热工设计规范[S].[10]GB 50176-1993,Thermal design code for civil building[S].
[11]Huelsz G,Barrios G,Rojas J.Equivalent-homogeneouslayers-set method for time-dependent heat transfer through hollow-block walls[J].Applied Thermal Engineering,2016,102:1019-1023.
[12]Zhang Yuan,Zhuang Sunqi,Wang Qian,et al.Experimental research on the thermal performance of composite PCM hollow block walls and validation of phase transition heat transfer models[J].Advances in Materials Science and Engineering,2016,2016(4):1-15.
[13]余晓平,付祥钊,黄光德,等.夏热冬冷地区采暖期/空调期划分对居住建筑能耗限值的影响分析[J].建筑科学,2007,23(8):27-31.[13]Yu Xiaoping,Fu Xiangzhao,Huang Guangde,et al.Analysis on impacts of dividing air-conditioning/heating periods on limited value of energy consumption for residential building in hot summer and cold winter area[J].Building Science,2007,23(8):27-31.
[14]JGJ 134-2010,夏热冬冷地区居住建筑节能设计标准[S].[14]JGJ 134-2010,Design standard for energy efficiency of residential buildings in hot summer and cold winter zone[S].