Preparation of sodium acetate energy storage materials in north macedonia

Is sodium acetate trihydrate a thermal storage material?

Thermal properties via Differential Scanning Calorimetry scanning. As phase change thermal storage material, sodium acetate trihydrate (CH 3 COONa·3H 2 O) exhibits large thermal capacity and holds tremendous promise. However, main problems of undercooling of solidification and phase stratification constrained its application in energy storage.

Is sodium acetate trihydrate a phase change storage material?

Sodium acetate trihydrate (SAT) attracts more and more interests in phase change storage material [, , , ], owing to its appropriate phase change temperature (around 58.4 °C) and relatively high latent heat (264 kJ/kg).

What is the sorption capacity of sodium acetate trihydrate (sat)/expanded graphite (EG)?

The sodium acetate trihydrate (SAT)/expanded graphite (EG) composite phase change material (PCM) was firstly prepared by absorbing liquid SAT into a porous network of EG, in which SAT acted as the PCM. EG prepared at microwave irradiation power of 800 W for 30 s with maximum volumes has the largest sorption capacity for SAT.

Are binary nitrate salts suitable for thermal energy storage?

Very recently, binary nitrate salts/EG and molten salts/EG have both been proven to be suitable for thermal energy storage. In this study, a series of sodium acetate trihydrate/expanded graphite (SAT/EG) composites with different mass fractions of SAT (70, 75, 80, 85, 90, and 95 %) were prepared by absorbing SAT into porous networks of EG.

Does Na 4 p 2 O 7 10h 2 O reduce supercooling degree?

The results verified Na 4 P 2 O 7 ·10H 2 O can significantly lower the supercooling degree of CH 3 COONa·3H 2 O and SAT achieved the best thermal performance with 1.5 wt% of Na 4 P 2 O 7 ·10H 2 O and the supercooling degree was smaller than 5 K. The excessive amounts of nucleation crystal would hinder crystal nucleation and growth.