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Thermal performance investigation and optimization of buildings with integrated phase change materials and solar photovoltaic thermal collectors

机译：集成相变材料和太阳能光伏集热器的建筑物的热性能研究和优化

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This paper presents the thermal performance investigation and optimization of buildings with integrated phase change materials (PCMs) and solar photovoltaic thermal (PVT) collectors. PCMs are embedded into building envelopes to increase local thermal mass while PVT collectors are used to generate both electricity and low grade thermal energy for winter space heating. The thermal performance of a typical Australian house with PVT collectors and three different types of PCMs is simulated and analyzed by comparing with that of the house using PVT collectors only, using PCMs only, and without using PVT collectors and PCMs. The results showed that using PVT collectors and PCMs simultaneously can substantially improve the indoor thermal performance of the house. The Coefficients of Thermal Performance Enhancement (CTPE) of the house using PVT collectors and PCMs of RT18HC, SP21E and SP24E with a thickness of 20 mm were improved to 43.4, 48.8 and 46.2% respectively, compared to that of the house using the PCMs only (-9.1, 2.6 and 0.2% for RT18HC, SP21E and SP24E, respectively). The CTPE of the house can be increased to 70.2% if Taguchi method is used to determine the optimal air flow rate of PVT collectors, thickness of PCM layers, PCM type and additional wall insulation. The optimization results also showed that the additional wall insulation of the house was a critical factor affecting the thermal performance of the PCM enhanced buildings with PVT collectors. (C) 2016 Elsevier B.V. All rights reserved.
机译：本文介绍了具有集成相变材料（PCM）和太阳能光伏热（PVT）收集器的建筑物的热性能研究和优化。 PCM嵌入建筑物的围护结构中，以增加局部热质量，而PVT收集器用于发电和低等级的热能，用于冬季取暖。通过与仅使用PVT集热器，仅使用PCM，不使用PVT集热器和PCM的房屋进行比较，来模拟和分析具有PVT集热器和三种不同类型PCM的典型澳大利亚房屋的热性能。结果表明，同时使用PVT收集器和PCM可以显着改善房屋的室内热性能。与仅使用PCM的房屋相比，使用PVT集热器和厚度为20 mm的RT18HC，SP21E和SP24E的PCM的PCM房屋的热性能提高系数（CTPE）分别提高到43.4％，48.8％和46.2％。 （RT18HC，SP21E和SP24E分别为-9.1、2.6和0.2％）。如果使用Taguchi方法确定PVT收集器的最佳空气流量，PCM层的厚度，PCM类型和附加墙体绝缘，则房屋的CTPE可以提高到70.2％。优化结果还显示，房屋的额外墙体隔热是影响带PVT收集器的PCM增强建筑的热性能的关键因素。 （C）2016 Elsevier B.V.保留所有权利。

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