夏热地区建筑双层隔热表皮隔热性能研究

发布时间：2018-06-01 15:03

本文选题：夏热地区 + 双层隔热表皮　；参考：《华中科技大学》2013年硕士论文

【摘要】：现代社会，建筑逐渐成为资源与能源消耗的巨大载体之一，建筑节能是一个亟待研究与解决的问题。当代建筑设计中，双层表皮已广泛应用于各类建筑，特别是近年来，双层隔热表皮的出现与应用对于被动式建筑节能有较大促进作用。双层隔热表皮主要通过外层表皮的遮阳与空气间层的通风作用大幅提高围护结构的隔热能力。在夏热地区，良好的隔热性对于提高围护结构的热工性能及室内的舒适性具有重要影响。但目前关于双层隔热表皮的研究中，主要关注其美学及经济方面性能，较少从构造尺度讨论隔热表皮的节能问题。本文即从构造尺度探讨表皮开孔率及间层厚度两个参数的取值差异对于夏热地区双层隔热表皮热工性能的影响。文章首先梳理了国内外关于建筑表皮、节能表皮、双层隔热表皮相关技术研究，接下来运用对流·辐射·导热耦合的CFD技术进行建模，将隔热表皮热工性能实测结果同基于实例进行的模拟研究结果进行对比，验证了模拟方法的可靠性。然后分别就开孔率、间层厚度两个参数的不同取值，以建筑周围风速、墙体表面热流通量、墙体表面温度为目标因素进行热工性能方面的探讨。结果显示开孔率越小隔热性能越好，而在本研究中间层厚度对于隔热性能的影响不明显。根据结论，文章最后选取实测实例进行进一步研究，结果显示隔热表皮具有优良的隔热性能，且若保持间层厚度不变、减小实例中表皮开孔率，其隔热性能会更好。最后，对整个工作进行总结，提出若干未来相关研究的发展方向。
[Abstract]:In modern society, architecture has gradually become one of the huge carriers of resources and energy consumption. Building energy conservation is an urgent problem to be studied and solved. In contemporary architectural design, double layer epidermis has been widely used in all kinds of buildings, especially in recent years, the appearance and use of double layer heat insulation epidermis have a great effect on the energy saving of passive buildings. The heat insulation of the layer is largely enhanced by the shading of the outer skin and the ventilation of the air interlayer. In the summer heat area, good heat insulation has an important effect on improving the thermal performance of the enclosure and the comfort of the enclosure. And economic performance, less energy saving of heat insulation epidermis is discussed from the structural scale. This paper is to discuss the effect of the difference of the two parameters of the epidermal opening rate and the thickness of the interlayer thickness on the thermal performance of the double layer heat insulation skin in the hot area from the structural scale.
The paper first combed the domestic and foreign research on the building skin, the energy saving skin and the double-layer heat insulation skin related technology. Then, the modeling was carried out by the CFD technology of convection, radiation and heat conduction. The experimental results of the thermal performance of the heat insulation skin were compared with the simulation results based on the example, and the reliability of the simulation method was verified. After the different values of the opening rate and the thickness of the interlayer thickness, the thermal properties of the surrounding wind speed, the heat flux of the wall surface and the wall surface temperature are discussed. The results show that the smaller the opening rate is, the better the heat insulation performance is, and the effect of the thickness of the middle layer on the heat insulation performance is not obvious. According to the results, the effect of the thickness of the middle layer on the heat insulation performance is not obvious. At the end of this paper, we choose the actual actual example to further study it. The results show that the heat insulation skin has excellent heat insulation performance, and if the thickness of the interlayer is kept constant, the skin opening rate in the case can be reduced and the heat insulation performance will be better. Finally, the whole work is summarized, and the direction of the future related research is put forward.
【学位授予单位】：华中科技大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU111.4

【参考文献】