Polymers in Molten Inorganic Salt Hydrates Phase Change Materials: Solubility and Gelation

2021 ◽  
Author(s):  
Kartik Kumar Rajagopalan ◽  
Parvin Karimineghlani ◽  
Xiuzhu Zhu ◽  
Patrick Shamberger ◽  
Svetlana Sukhishvili
Keyword(s):  
Energy Storage ◽  
Phase Change ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Phase Change Materials ◽  
Inorganic Salt ◽  
Melting Temperatures ◽  
Salt Hydrates ◽  
Latent Heats

Inorganic salt hydrates are of interest as phase change materials (PCMs) for thermal energy storage because of their unique properties such as high latent heats of fusion, moderate melting temperatures,...

Layout of Phase Change Materials in a Thermal Energy Storage System

2018 ◽  
Author(s):  
Habeeb Ur Rahman Khan ◽  
Taha K. Aldoss ◽  
Muhammad M. Rahman
Keyword(s):  
Energy Storage ◽  
Phase Change ◽  
Latent Heat ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Phase Change Materials ◽  
Storage System ◽  
Energy Storage System ◽  
Melting Temperatures ◽  
Thermal Energy Storage System

The objective of this work is to investigate the performance of a thermal energy storage system using multiple phase change materials (PCMs). This study is based on latent heat thermal energy storage. Three phase change materials namely, Potassium Hydroxide (KOH), Potassium Nitrate (KNO3), and Sodium Nitrate (NaNO3) have been selected for this study. These PCMs have been chosen because of their inherent thermal stability, high melting point, high latent heat of fusion per unit mass, relatively high thermal conductivity, high specific heat, non-flammable properties, and availability. In this work, the performance of the thermal energy storage system is analyzed by evaluating key parameters such as liquid fraction and the amount of energy stored and extracted during charging and discharging respectively. Two types of PCM layouts, uniform and cascaded, have been employed. In case of uniform PCM layout, only one type of PCM is used at a time throughout the bed. In case of cascaded PCM layout, multiple PCMs are used at a time throughout the bed. The cascaded layout further has two types of arrangement. The first type of arrangement is the slope down arrangement where the PCMs are placed in the descending order of their melting temperatures. The second type of arrangement is the slope up arrangement where the PCMs are placed in the ascending order of their melting temperatures. Overall, the cascaded layout excels in performance when compared to the uniform layout in terms of PCM melting and solidification time and in terms of energy stored and extracted. Keeping these factors in mind, we recommend using a cascaded layout in a Thermal Energy Storage System (TESS) as opposed to a uniform layout.

Design of phase change materials based on salt hydrates for thermal energy storage in a range of 4–40 °C

2019 ◽  
Vol 139 (6) ◽  
pp. 3701-3710 ◽  
Author(s):  
Jorge A. Lovera-Copa ◽  
Svetlana Ushak ◽  
Nicole Reinaga ◽  
Islaman Villalobos ◽  
Franklin R. Martínez
Keyword(s):  
Energy Storage ◽  
Phase Change ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Phase Change Materials ◽  
Salt Hydrates

Thermodynamic insights into n-alkanes phase change materials for thermal energy storage

2021 ◽  
Author(s):  
Huimin Yan ◽  
Huning Yang ◽  
Jipeng Luo ◽  
Nan Yin ◽  
Zhicheng Tan ◽  
...  
Keyword(s):  
Energy Storage ◽  
Phase Change ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Phase Change Materials
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