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Parametric analysis for performance enhancement of phase change materials in naturally ventilated buildings

机译：用于自然通风建筑中相变材料性能增强的参数分析

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This paper presents a design optimization related to the application of phase change materials within buildings, which aims to maximize the utilization of latent heat capacity to improve indoor thermal comfort during summer season. Two performance indicators are developed: efficiency coefficient (a representation of the effective utilization of latent heat storage capacity) and effectiveness coefficient (a representation of improvement of indoor thermal comfort). A series of parameters which influence the efficiency coefficient and effectiveness coefficient are identified and then formulated to quantify those coefficients for optimal design. With the performance indicators defined, a case study is performed in a typical standard Australian residential house to derive the optimized design of PCM refurbishment utilizing the developed performance indicators. Results reveal that the performance indicators are effective in the selection of optimum PCM configurations so that the resultant PCM storage efficiency and indoor thermal comfort are optimized. This is particularly demonstrated by the significant enhancement of storage efficiency and effectiveness of optimized PCM compared to non-optimized cases for each climate conditions. Furthermore, an optimized PCM condition is found to be more cost-effective than the non-optimized conditions. (C) 2016 Elsevier B.V. All rights reserved.
机译：本文提出了与相变材料在建筑物中的应用相关的设计优化，旨在最大程度地利用潜热容量，以改善夏季的室内热舒适性。制定了两个性能指标：效率系数（代表潜热存储容量的有效利用）和有效性系数（代表室内热舒适性的代表）。确定一系列影响效率系数和有效性系数的参数，然后制定公式以量化这些系数，以进行最佳设计。在定义了性能指标的情况下，在典型的澳大利亚标准住宅中进行了案例研究，以利用已开发的性能指标得出PCM翻新的优化设计。结果表明，性能指标可有效选择最佳的PCM配置，从而优化了PCM的存储效率和室内热舒适度。与每种气候条件下的非优化案例相比，优化PCM的存储效率和有效性的显着提高尤其证明了这一点。此外，发现优化的PCM条件比未优化的条件更具成本效益。 （C）2016 Elsevier B.V.保留所有权利。

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