An experimental study on the application of polyalcohol solid-solid phase change materials in solar drying with cross-corrugated solar air collectors

Gao, Wenfeng; Lin, Wenxian; Liu, T; Li, M

doi:10.1088/1755-1315/93/1/012075

Cited by 4 publications

(1 citation statement)

References 16 publications

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“…In this regard, few works about the performance of PCs in TES systems for specific applications were found in the literature. Some of the analyzed applications are solar drying [21], solar cooking [22,23], solar industrial process heat [24], and heat recovery [25,26].…”

Section: Introductionmentioning

confidence: 99%

Thermal Properties of Alternative Phase Change Materials for Solar Thermal Applications

Tomassetti¹,

Luzi²,

Peng³

et al. 2023

IJHT

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Phase change materials (PCMs) with a solid-solid phase transition are receiving increasing attention as promising materials for thermal energy storage (TES) systems. Unlike the more well-known and widespread solid-liquid PCMs, they generally have negligible volume change during phase transition, no contamination, and long cyclic life. Among the most studied solid-solid PCMs, a group of organic materials known as plastic crystals and their mixtures seem to show energy storage properties suitable for solar thermal systems at low-medium temperatures (80-150℃). In this study, to deeply analyze their suitability for these applications, the thermophysical properties and thermal stability of two promising plastic crystals, pentaerythritol (PE) and pentaglycerine (PG), and their mixture are reviewed. The phase transition properties of these two pure substances were also assessed in this study through differential scanning calorimetry (DSC). The experimental measurements showed good agreement with the data collected from literature. The analysis showed that various properties and characteristics of these materials should be further investigated since a limited number of studies related to their properties is available. However, if their drawbacks are adequately addressed, the studied plastic crystals seem suitable for TES applications.

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