纳米强化相变Trombe墙在严寒地区应用研究
|
摘要
为顺应城市低碳可持续发展理念,在建筑墙体结构中应用相变Trombe墙技术,可以利用相变潜热较高的相变材料收集太阳能和蓄释热量,调节室内热舒适性,提高建筑能源效率并降低能耗。但相变材料导热系数过低,不利于Trombe墙在严寒地区实际蓄能。以北方气象环境为背景,通过CFD模拟及太阳光光照模拟实验分析纳米强化相变Trombe墙温度变化,研究结果表明微量的纳米材料使相变Trombe墙可以有效吸收太阳能辐射热能,增强墙体蓄热性能,具有较高的比热及传热效率,可以降低建筑冷热负荷,节约建筑能耗。
In order to meet the concept of sustainable development and low carbon city, nanoparticles are added to Phase Change Materials(PCM) Trombe Wall in building structure. It is possible to utilize phase change materials with its high latent heatto collect solar energy, storage and release heat, adjust indoor thermal comfort, increase building energy efficiency and save building energy consumption. However, the low thermal conductivity of phase change materials is not conducive to the energy storage of the Trombe Wall in severe cold regions. Based on the northern meteorological environment, the temperature change of the Phase Change Trombe Wall is analyzed by CFD simulation and experiment of solar simulator. The results show that a little of nano-materials improve the energy storage efficiency of the PCM Trombe Wall, and also enhance the thermal performance. Moreover, with high specific heat and heat transfer efficiency, nano-enhanced PCM Trombe Wall can reduce the building cooling and heating load and save building energy consumption.
In order to meet the concept of sustainable development and low carbon city, nanoparticles are added to Phase Change Materials(PCM) Trombe Wall in building structure. It is possible to utilize phase change materials with its high latent heatto collect solar energy, storage and release heat, adjust indoor thermal comfort, increase building energy efficiency and save building energy consumption. However, the low thermal conductivity of phase change materials is not conducive to the energy storage of the Trombe Wall in severe cold regions. Based on the northern meteorological environment, the temperature change of the Phase Change Trombe Wall is analyzed by CFD simulation and experiment of solar simulator. The results show that a little of nano-materials improve the energy storage efficiency of the PCM Trombe Wall, and also enhance the thermal performance. Moreover, with high specific heat and heat transfer efficiency, nano-enhanced PCM Trombe Wall can reduce the building cooling and heating load and save building energy consumption.
引文
[1]LEWIS N S,NOCERA D G.Powering the planet:chemical challenges in solar energy utilization[J].Proc Natl Acad Sci U S A,2006,103(43):15729-15735.
[2]Kaushik Biswas,Jue Lu,Parviz Soroushian,et al.Combined experimental and numerical evaluation of a prototype nano-pcm enhanced wallboard[J].Applied Energy,2014,131:517-529.
[3]李慧星,张然,冯国会,等.严寒地区近零能耗建筑与常规建筑空调能耗模拟对比分析[J].建筑节能,2015,43(6):10-12.
[4]张雅婷.严寒地区近零能耗办公建筑节能设计研究[D].沈阳:沈阳建筑大学,2016.
[5]郭猛.浅谈中国建筑节能发展趋势[J].建筑节能,2013,41(1):74-76.
[6]Mavrigiannaki A,Ampatzi E.Latent heat storage in building elements:A systematic review on properties and contextual performance factors[J].Renewable & Sustainable Energy Reviews,2016,60:852-866.
[7]POMIANOWSKI M,HEISELBERG P,ZHANG Y.Review of thermal energy storage technologies based on PCM application in buildings[J].Energy & Buildings,2013,67(4):56-69.
[8]梁辰,闫全英,王威.墙体储能用石蜡混合物的配制和储热性能实验研究[J].太阳能学报,2009,30(7):916-920.
[9]龙文志.太阳能光伏建筑一体化[J].中国建筑金属结构,2009,40(7):36-44.
[10]王海,尹万民.外墙保温技术在建筑节能中的应用[J].建筑节能,2008,36(12):13-16.
[11]闫全英,吴生俊,金丽丽.被动式蓄热相变墙体热工性能的研究[J].新型建筑材料,2014,41(11):17-20.
[12]王建昌,方利国,柳思.相变材料在建筑节能领域的应用[J].建筑节能,2011,39(4):38-41.
[13]FAN Liwu,KHODADADI J M.Thermal conductivity enhancement of phase change materials for thermal energy storage:a review[J].Renewable and Sustainable Energy Reviews,2011,15(1):24-46.
[14]Chaichan M T,Al-Hamdani A H,Kasem A M.Enhancing a Trombe wall charging and discharg-ing processes by adding nano-Al2O3 to phase change materials[J].International Journal of Scientific & Engineering Research,2016,7(3):736-741.
[15]Laura Colla,Laura Fedele,SIMONE Mancin,et al.Nano-pcms for enhanced energy storage and passive cooling applications[J].Applied Thermal Engineering,2017,110:584-589.
[16]KAMEYA Yuki,Hanamura,Katsunori.Enhancement of solar radiation absorption using nanoparticle suspension[J].Solar Energy,2011,85(2):299-307.
[17]VAJJHA R S,DAS D K,MAHAGAONKAR B M.Mahagaonkar.Density Measurement of Different Nanofluids and Their Comparison With Theory[J].Petroleum Science and Technology,2009,27(6):612-624.
[18]Salma Gharbi,Souad Harmand,Sadok Ben Jabrallah.Experimental study of the cooling performance of phase change material with discrete heat sources-Continuous and intermittent regimes[J].Applied Thermal Engineering,2017,111:103-111.
[19]Mohammad Parsazadeh,Xili Duan.Numerical and statistical study on melting of nanoparticle enhanced phase change material in a shell-and-tube thermal energy storage system[J].Applied Thermal Engineering,2017,111:950-960.
[20]吴继臣,徐刚.全国主要城市冬季太阳辐射强度的研究[J].哈尔滨工业大学学报,2003,35(10):1236-1239.
[2]Kaushik Biswas,Jue Lu,Parviz Soroushian,et al.Combined experimental and numerical evaluation of a prototype nano-pcm enhanced wallboard[J].Applied Energy,2014,131:517-529.
[3]李慧星,张然,冯国会,等.严寒地区近零能耗建筑与常规建筑空调能耗模拟对比分析[J].建筑节能,2015,43(6):10-12.
[4]张雅婷.严寒地区近零能耗办公建筑节能设计研究[D].沈阳:沈阳建筑大学,2016.
[5]郭猛.浅谈中国建筑节能发展趋势[J].建筑节能,2013,41(1):74-76.
[6]Mavrigiannaki A,Ampatzi E.Latent heat storage in building elements:A systematic review on properties and contextual performance factors[J].Renewable & Sustainable Energy Reviews,2016,60:852-866.
[7]POMIANOWSKI M,HEISELBERG P,ZHANG Y.Review of thermal energy storage technologies based on PCM application in buildings[J].Energy & Buildings,2013,67(4):56-69.
[8]梁辰,闫全英,王威.墙体储能用石蜡混合物的配制和储热性能实验研究[J].太阳能学报,2009,30(7):916-920.
[9]龙文志.太阳能光伏建筑一体化[J].中国建筑金属结构,2009,40(7):36-44.
[10]王海,尹万民.外墙保温技术在建筑节能中的应用[J].建筑节能,2008,36(12):13-16.
[11]闫全英,吴生俊,金丽丽.被动式蓄热相变墙体热工性能的研究[J].新型建筑材料,2014,41(11):17-20.
[12]王建昌,方利国,柳思.相变材料在建筑节能领域的应用[J].建筑节能,2011,39(4):38-41.
[13]FAN Liwu,KHODADADI J M.Thermal conductivity enhancement of phase change materials for thermal energy storage:a review[J].Renewable and Sustainable Energy Reviews,2011,15(1):24-46.
[14]Chaichan M T,Al-Hamdani A H,Kasem A M.Enhancing a Trombe wall charging and discharg-ing processes by adding nano-Al2O3 to phase change materials[J].International Journal of Scientific & Engineering Research,2016,7(3):736-741.
[15]Laura Colla,Laura Fedele,SIMONE Mancin,et al.Nano-pcms for enhanced energy storage and passive cooling applications[J].Applied Thermal Engineering,2017,110:584-589.
[16]KAMEYA Yuki,Hanamura,Katsunori.Enhancement of solar radiation absorption using nanoparticle suspension[J].Solar Energy,2011,85(2):299-307.
[17]VAJJHA R S,DAS D K,MAHAGAONKAR B M.Mahagaonkar.Density Measurement of Different Nanofluids and Their Comparison With Theory[J].Petroleum Science and Technology,2009,27(6):612-624.
[18]Salma Gharbi,Souad Harmand,Sadok Ben Jabrallah.Experimental study of the cooling performance of phase change material with discrete heat sources-Continuous and intermittent regimes[J].Applied Thermal Engineering,2017,111:103-111.
[19]Mohammad Parsazadeh,Xili Duan.Numerical and statistical study on melting of nanoparticle enhanced phase change material in a shell-and-tube thermal energy storage system[J].Applied Thermal Engineering,2017,111:950-960.
[20]吴继臣,徐刚.全国主要城市冬季太阳辐射强度的研究[J].哈尔滨工业大学学报,2003,35(10):1236-1239.