JOURNAL: Sodium nitrite-sodium nitrate eutectic based composite phase change material (CPCM) for medium-temperature thermal energy storage (TES): Exploring the relationship between microstructures and thermal properties
Summary
Authors:
Benjamin Grégoire
Hongkun Ma
Anabel Palacios
Song Yang
Mengqi Bai
Tongtong Zhang
Yulong Ding
University of Birmingham
Sodium nitrite-sodium nitrate eutectic based composite phase change material (CPCM) for medium-temperature thermal energy storage (TES): Exploring the relationship between microstructures and thermal properties
Journal of Energy Storage
November 2024
This paper investigates a new type of material designed to store heat efficiently at medium temperatures. The material combines different components to stabilise its shape, improve heat transfer, and store both latent and sensible heat. This study finds that the material undergoes two reversible changes—one solid-to-solid and one solid-to-liquid—allowing it to store a significant amount of energy. It also remains stable at high temperatures over repeated use. By examining the material’s structure in detail, the study shows how its design influences performance, offering potential for use in high-temperature technologies like industrial waste heat recovery.