Composite fiber phase change energy storage pipeline

What is a phase change fibre?

Based on PCMs, phase change fibres (PCFs) have been developed to achieve constant temperatures inside clothing and reduce the discomfort caused by changes of the external environment temperature through the reversible storage and release of thermal energy , , .

What is a PCM combined energy storage pipe?

According to the concept of phase change energy storage, a PCM combined energy storage pipe was proposed in this paper. Not only does the pipe have good heat preservation performance, but it can also make use of the PCM’s phase change energy release property, so that the oil can be transported safely .

Are phase change fibers reusable?

Moreover, the fibers showed quite high heat density of 122.5 J/g, much higher than that of the previously reported phase change fibers with a solid-solid phase-transition, and high reusability, with heat density of 102.0 J/g preserved after 100 heating-cooling cycles.

Are S-S phase change fibers a good tensile structure?

Conclusions S-S phase change fibers with enhanced heat energy storage density have been successfully fabricated from coaxial wet spinning and subsequent polymerization-crosslinking. The resulting fibers showed core-sheath structures, high flexibility and good tensile properties, with an elongation of 629.1 % and stress at break of 3.8 MPa.

Are solid-solid phase change fibers good for thermal management and latent heat storage?

Solid-solid phase change fibers are advantageous for thermal management and latent heat storage, because they don't have the issue of liquid leakage facing those common ones that have a solid-liquid phase-transition. However, the relatively low heat density hinders such fibers from real applications.

What are S-S phase change fibers used for?

These attractive features make the fibers to have high potentials for wearable temperature management, energy harvesting and heat storage applications. Upon decreasing their diameters, the S-S phase change fibers could be woven (with other fibers) to further demonstrate their wearable applications.