Expanded perlite energy storage

How many times can perlite expand?

Perlite can expand 7–16 times over its original volume if heated between 760 °C and 1100 °C , and it is thermal and acoustical insulator. The low density and light weight characteristics of expanded perlite (ExP) makes it one of the best retainer materials suitable for preparing form-stable composite PCMs (F-SCPCMs) for TES purposes , .

Is expanded perlite a form-stable PCM?

Many researchers investigated the form-stable PCMs using expanded perlite as support material. As shown in Table. 3, Dixit et al. prepared by impregnating propyl palmitate in expanded perlite with a maximum PCM load of 55 wt% and the latent heat was 81.98 J/g.

Why is perlite a good insulator?

Among these, perlite is an amorphous volcanic glass possessing high porosity and very low density. It also shows high thermal stability and it is relatively cheaper , . Perlite can expand 7–16 times over its original volume if heated between 760 °C and 1100 °C , and it is thermal and acoustical insulator.

What is thermal energy storage (TES) wood-plastic composite (WPC)?

The thermal energy storage (TES) wood-plastic composites (WPC) are manufactured by employing expanded perlite (EP) stabilized PEG as PCM and wood powder/high-density polyethylene (WF/HDPE) as a matrix.

How to obtain energy storage composite PCMS?

In order to obtain this kind of energy storage composite PCMs, several paraffins have been encapsulated in form-stable mass fractions into different porous matrices such as diatomite, expanded perlite, and vermiculite as host matrix , , , , , .

What is thermal energy storage (TES) using phase change materials (PCM)?

Thermal energy storage (TES) using phase change materials (PCM) is an efficient method of storing excess energy, a clean method, and has received significant attention of the researchers and energy engineers . Known as latent heat storage materials, PCMs are promising materials for storing and releasing large amount of energy.