Abstract
The paper presents the different properties of phase change material (PCM) and Microencapsulated phase change material (MEPCM) employed to cold storage/transportation system with a solar-driven cooling cycle. Differential Scanning Calorimeter (DSC) tests have been performed to analyze the materials enthalpy, melting temperature range, and temperature range of solidification. KD2 Pro is used to test the thermal conductivities of phase change materials slurry and the results were used to compare the materials heat transfer performance. The slurry flow characteristics of MEPCM slurry also have been tested. Furthermore, in order to analyze the improvement effect on stability, the stability of MEPCM slurry with different surfactants have been tested. The researches of the PCM and MEPCM thermal properties revealed a more prospective application for phase change materials in energy storage/transportation systems. The study aims to find the most suitable chilling medium to further optimize the design of the cold storage/transportation systems with solar driven cooling cycles.
Highlights
The human civilization has progressed on the wheels of energy resources
It is evident that the enthalpy of phase change material (PCM) is similar as that of Microencapsulated phase change material (MEPCM), the majority of PCM melting temperatures during the phase change interval was higher than 20 ◦ C, which is disadvantageous to cold storage/transportation systems
The results show that the turbidity of both MEPCM slurry with PEG 400 and MEPCM slurry with Sodium alginate (SA) are lower than
Summary
The human civilization has progressed on the wheels of energy resources. Energy is the power source that drives the development of society [1]. Energies 2017, 10, 1867 air cooling cycle with a PCM cold storage/transportation system has been proposed [7,8]. Microencapsulated phase change materials (MEPCMs) are small bi-component particles consisting of a core material of the PCM and an outer shell or capsule wall [10,11,12]. MEPCM is used for a variety of energy storage applications [13,14] In this context, to select the proper cold storage/transportation medium, different thermal properties of phase change materials have been tested. The thermal properties of PCM and MEPCM have been studied to find the most suitable chilling medium to optimize the design of cold storage/transportation systems in Solar driven cooling cycles
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