Tunable endothermic plateau for enhancing thermal energy storage obtained using binary metal alloy particles

Chih Chung Lai; Shih Ming Lin; Yuan Da Chu; Chun Che Chang; Yu Lun Chueh; Ming-Chang Lu

doi:10.1016/j.nanoen.2016.02.058

Tunable endothermic plateau for enhancing thermal energy storage obtained using binary metal alloy particles

Chih Chung Lai, Shih Ming Lin, Yuan Da Chu, Chun Che Chang, Yu Lun Chueh^*, Ming-Chang Lu

^*Corresponding author for this work

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

Thermal energy storage is crucial for various industrial systems. Enhancements in energy storage induced by latent heat have been demonstrated by using phase-change materials. However, these enhancements occur only at the melting points of the materials. In this study, we demonstrated the controllability of latent heat absorption/release in a certain temperature range. A wide endothermic plateau from 370 to 407 °C for the Hitec salt was obtained by releasing the latent heat of alloy particles embedded in the salt. The alloy particle-doped salt was applied to a Stirling engine to demonstrate its effectiveness in enhancing the energy and power outputs of the engine. Compared to pure salt, the alloy particle-doped salt can enhance the engine's energy output by 21%. With the advantages of scalable synthesis and superior thermal properties, the alloy particles have potential applications in energy storage enhancement in various thermal energy systems.

Original language	English
Pages (from-to)	218-224
Number of pages	7
Journal	Nano Energy
Volume	25
DOIs	https://doi.org/10.1016/j.nanoen.2016.02.058
State	Published - 1 Jul 2016

Keywords

Latent heat
SnZn/SiO core-shell alloy particles
Thermal energy storage
Tunable endothermic plateau

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10.1016/j.nanoen.2016.02.058

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title = "Tunable endothermic plateau for enhancing thermal energy storage obtained using binary metal alloy particles",

abstract = "Thermal energy storage is crucial for various industrial systems. Enhancements in energy storage induced by latent heat have been demonstrated by using phase-change materials. However, these enhancements occur only at the melting points of the materials. In this study, we demonstrated the controllability of latent heat absorption/release in a certain temperature range. A wide endothermic plateau from 370 to 407 °C for the Hitec salt was obtained by releasing the latent heat of alloy particles embedded in the salt. The alloy particle-doped salt was applied to a Stirling engine to demonstrate its effectiveness in enhancing the energy and power outputs of the engine. Compared to pure salt, the alloy particle-doped salt can enhance the engine's energy output by 21%. With the advantages of scalable synthesis and superior thermal properties, the alloy particles have potential applications in energy storage enhancement in various thermal energy systems.",

keywords = "Latent heat, SnZn/SiO core-shell alloy particles, Thermal energy storage, Tunable endothermic plateau",

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AU - Lai, Chih Chung

AU - Lin, Shih Ming

AU - Chu, Yuan Da

AU - Chang, Chun Che

AU - Chueh, Yu Lun

AU - Lu, Ming-Chang

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AB - Thermal energy storage is crucial for various industrial systems. Enhancements in energy storage induced by latent heat have been demonstrated by using phase-change materials. However, these enhancements occur only at the melting points of the materials. In this study, we demonstrated the controllability of latent heat absorption/release in a certain temperature range. A wide endothermic plateau from 370 to 407 °C for the Hitec salt was obtained by releasing the latent heat of alloy particles embedded in the salt. The alloy particle-doped salt was applied to a Stirling engine to demonstrate its effectiveness in enhancing the energy and power outputs of the engine. Compared to pure salt, the alloy particle-doped salt can enhance the engine's energy output by 21%. With the advantages of scalable synthesis and superior thermal properties, the alloy particles have potential applications in energy storage enhancement in various thermal energy systems.

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