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An innovative apparatus for simulating daily temperature for investigating thermal performance of wallboards incorporating PCMs

机译：一种用于模拟每日温度的创新设备，用于研究包含PCM的墙板的热性能

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In recent years, many researchers have been attracted to the application of phase change materials (PCMs) in the production of construction materials. PCMs are substances with large latent heat capacity and their combination with building materials such as concrete and gypsum would lead to an enhancement in their thermal characteristics, mostly thermal inertia and also the capacity of storing thermal energy. One of the problems associated with the use of PCMs is the correspondence of their melting temperature range with the temperature of the ambient in which they will be used. This paper is aimed to introduce an innovative apparatus for investigating some characteristics of PCM-containing wallboards such as the amount of the reduction of maximum indoor temperature, the time delay to reach the maximum indoor temperature, and the cycling stability of PCMs in melting and freezing cycles. The compatibility of the melting temperature of the PCMs with the ambient temperature to ensure the charge/discharge process of PCMs can be studied as well. The analysis of the test results carried out by this apparatus will help the researchers to a better understanding of the thermal behavior of any kind of PCMs in many different environments. In this study, thermal performance of a precast concrete sandwich panel incorporating PEG 600 as PCM is evaluated using the introduced apparatus. (C) 2018 Elsevier B.V. All rights reserved.
机译：近年来，许多研究人员吸引了相变材料（PCM）在建筑材料生产中的应用。 PCM是具有高潜热能力的物质，将其与建筑材料（例如混凝土和石膏）结合使用可提高其热特性（主要是热惯性）以及存储热能的能力。与PCM的使用有关的问题之一是它们的熔化温度范围与将使用它们的环境温度的对应关系。本文旨在介绍一种创新的设备，用于研究含PCM墙板的某些特性，例如降低室内最高温度的量，达到室内最高温度的时间延迟以及PCM在融化和冻结中的循环稳定性周期。还可以研究PCM的熔化温度与环境温度的兼容性，以确保PCM的充电/放电过程。通过这种设备执行的测试结果的分析将有助于研究人员更好地了解许多类型PCM在许多不同环境中的热行为。在这项研究中，使用引入的设备评估了采用PEG 600作为PCM的预制混凝土夹心板的热性能。 （C）2018 Elsevier B.V.保留所有权利。

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