Experimental and numerical studies of hybrid PCM embedded in plastering mortar for enhanced thermal behaviour of buildings

被引：127
作者：
Kheradmand, Mohammad [1 ]
Azenha, Miguel [2 ]
de Aguiar, Jose L. B. [1 ]
Castro-Gomes, Joao [3 ]
机构：
[1] Univ Minho, CTAC Terr Environm & Construct Res Ctr, Sch Engn, Dept Civil Engn, Azurem Campus, P-4800058 Guimaraes, Portugal
[2] Univ Minho, ISISE, Sch Engn, Dept Civil Engn, Azurem Campus, P-4800058 Guimaraes, Portugal
[3] Univ Beira Interior, Ctr Mat & Bldg Technol, C MADE, Dept Civil Engn & Architecture, P-6201001 Covilha, Portugal
来源：
ENERGY | 2016年 / 94卷
关键词：
Hybrid PCM; Plastering mortar; Energy efficiency; Facade; Buildings; PHASE-CHANGE MATERIALS; ENERGY STORAGE; SIMULATION; CONCRETE;
D O I：
10.1016/j.energy.2015.10.131
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
This paper proposes a methodology for improvement of energy efficiency in buildings through the innovative simultaneous incorporation of three distinct phase change materials (here termed as hybrid PCM) in plastering mortars for facade walls. The thermal performance of a hybrid PCM mortar was experimentally evaluated by comparing the behaviour of a prototype test cell (including hybrid PCM plastering mortar) subjected to realistic daily temperature profiles, with the behaviour of a similar prototype test cell, in which no PCM was added. A numerical simulation model was employed (using ANSYS-FLUENT) to validate the capacity of simulating temperature evolution within the prototype containing hybrid PCM, as well as to understand the contribution of hybrid PCM to energy efficiency. Incorporation of hybrid PCM into plastering mortars was found to have the potential to significantly reduce heating/cooling temperature demands for maintaining the interior temperature within comfort levels when compared to normal mortars (without PCM), or even mortars comprising a single type of PCM. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：250 / 261
页数：12
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