Evaluation of thermal kinetics of microencapsulated PCM for low-temperature thermal energy storage application

IF 2.2 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Materials Letters: X Pub Date : 2022-06-01 DOI:10.1016/j.mlblux.2022.100143

Atif Amim, Gaurav Priyadarshi, Tirtharaj Purushottam Babre, B. Kiran Naik

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引用次数: 1

Abstract

In the present investigation, the microencapsulated phase change material (PCM) thermal kinetics for low-temperature thermal energy storage applications (32 °C–53 °C) is analysed. Microencapsulated PCMs selected are CaCl₂·6H₂O, n-Hexadecane, n-Octadecane, n-Eicosane, Capric/Lauric acid, Paraffin wax (C₃₀H₆₂), and Palmitic acid (C₁₆H₃₂O₂), respectively. Ambient air is selected as the external/heat transfer fluid which interacts with PCM materials. The thermal kinetics of microencapsulated PCMs is evaluated by selecting the solid-liquid interface position with melting time and molten fraction as the performance evaluation parameters. Among all the phase change materials, the best PCM is found to be CaCl₂·6H₂O with 4 cm of PCM diameter, 53 °C of external fluid temperature, and 106 min of melting time.

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微封装PCM低温储热应用的热动力学评价

在本研究中，分析了微封装相变材料(PCM)在低温(32°C - 53°C)储能应用中的热动力学。选择的微胶囊PCMs分别为CaCl2·6H2O、正十六烷、正十八烷、正二十烷、癸酸/月桂酸、石蜡(C30H62)和棕榈酸(C16H32O2)。选择环境空气作为与PCM材料相互作用的外部/传热流体。采用固液界面位置、熔融时间和熔液分数作为性能评价参数，对微胶囊化PCMs的热动力学进行了评价。在所有相变材料中，最佳相变材料为CaCl2·6H2O，相变直径为4 cm，外液温度为53℃，熔化时间为106 min。

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