共查询到19条相似文献,搜索用时 109 毫秒
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总结了近几年建筑节能中的相变蓄能技术研究进展.对相变蓄热建筑材料的制备技术和研究方法等进行了概述,并对相变蓄能建筑材料在多功能墙体或地板、智能控温建筑物或混凝土工程及太阳能建筑等方面的应用前景进行了展望。 相似文献
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相变蓄能建筑材料的研究与发展 总被引:1,自引:0,他引:1
相变材料可以与传统建材复合成具有蓄热和调温功能的新型建筑材料.总结相变材料在建筑中的研究与发展情况,介绍相变蓄能材料的选择标准和复合工艺,简要分析相变材料的主要性质,并对相变蓄能建筑材料今后的研究和发展进行探讨. 相似文献
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《Planning》2013,(11)
本文着重研究分析了如何对蓄能建筑材料进行节能,对其节能性进行了评价,并且从温度阻尼率着手对建筑材料的节能性能定下了相应指标。例举了行业中常见的蓄能石膏板来进行节能性检测,首创以温度阻尼率来检测节能效果的手段。检验结果证实了在相变蓄能建筑材料的节能评价中,温度阻尼率是一个十分重要的判断依据。 相似文献
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随着人们生活水平及对工作、居住环境舒适度要求的提高,相应的建筑能耗也随之增加,从而造成能源消耗过快,环境污染加剧。怎样使低能耗满足居住环境舒适度成为建筑节能领域里永恒话题,经过多年研究,将新型相变蓄能保温材料应用于建筑外墙等领域,能够真正做到节能环保。 相似文献
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从进入新世纪以来,不管是世界上哪个国家,能源消耗和环境污染都越来越严重,因此寻找新型环保节能的建筑材料势在必行。本文通过分析和调查研究,发现相变材料在未来建筑节能领域可以被广泛应用。 相似文献
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从进入新世纪以来,不管是世界上哪个国家,能源消耗和环境污染都越来越严重,因此寻找新型环保节能的建筑材料势在必行。本文通过分析和调查研究,发现相变材料在未来建筑节能领域可以被广泛应用。 相似文献
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新型相变蓄能墙体的应用探讨 总被引:23,自引:3,他引:23
将相变材料与建材基体复合,构筑成一种新型相变蓄能墙体,这种墙体可充分利用夜间低价电蓄热,供次日白天的辅助热源,降低采暖系统的投资与能耗,改善室内环境,介绍了相变材料蓄热的机理及特点,应用于寒冷地区房屋电供暖建筑中的相变材料的选择和研制,并展望了相变材料在建筑节能中的应用技术,为相变材料在我国北方寒冷地区建筑电采暖领域推广使用,提出一些可行性分析依据。 相似文献
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Luchen HAO Jianzhuang XIAO Wanzhi CAO Jingting SUN 《Frontiers of Structural and Civil Engineering》2022,16(10):1301
Thermal energy storage recycled powder mortar (TESRM) was developed in this study by incorporating paraffin/recycled brick powder (paraffin/BP) composite phase change materials (PCM). Fourier transform infrared and thermogravimetric analysis results showed that paraffin/BP composite PCM had good chemical and thermal stability. The onset melting temperature and latent heat of the composite PCM were 46.49 °C and 30.1 J·g−1. The fresh mortar properties and hardened properties were also investigated in this study. Paraffin/BP composite PCM with replacement ratio of 0%, 10%, 20%, and 30% by weight of cement were studied. The results showed that the static and dynamic yield stresses of TESRM were 699.4% and 172.9% higher than those of normal mortar, respectively. The addition of paraffin/BP composite PCM had a positive impact on the mechanical properties of mortar at later ages, and could also reduce the dry shrinkage of mortar. The dry shrinkage of TESRM had a maximum reduction about 26.15% at 120 d. The thermal properties of TESRM were better than those of normal mortar. The thermal conductivity of TESRM was 36.3% less than that of normal mortar and the heating test results showed that TESRM had good thermal energy storage performance. 相似文献
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A.T. Jones 《Journal of Building Performance Simulation》2017,10(3):313-325
A co-simulation environment, consisting of a detailed mathematical model of a thermal energy storage unit which is incorporated with an EnergyPlus simulation model of a full building HVAC system, is described. The two models are integrated using the user-defined plant component feature in EnergyPlus and the Building Controls Virtual Test Bed (BCVTB) environment. The thermal energy storage unit, which consists of encapsulated phase change material in a series of flat plates and a heat transfer working fluid (water), is modelled using a transient one-dimensional forward finite difference method. The thermal storage model is executed within MATLAB and is verified against experimental data, showing a discharging heat transfer accuracy to within 2.5%. The building model, which incorporates a retrofitted ground source heat pump system within a thermally massive building, is simulated in the EnergyPlus environment. The co-simulation arrangement allows for in-depth analysis of the integrated system under dynamic operating conditions, which is currently not possible within the EnergyPlus environment. Moreover, the overall adopted approach, based on generic integration of a detailed mathematical model, using a third party generalised programming environment, into an established building simulation environment, serves as a successful exemplar for other researchers and practitioners working in the field. 相似文献