Table 4 Properties of PCM and alumina nanoparticles42,53.

From: A critical assessment of nanoparticles enhanced phase change materials (NePCMs) for latent heat energy storage applications

Properties

Pure RT82 PCM

Alumina nanoparticles (Al2O3)

Specific heat capacity, \({C}_{p}\), J kg−1 K−1

2000

765

Thermal conductivity, \(k\), W mK−1

0.2

36

Density, \(\rho\), kg m−3

770

3600

Dynamic viscosity, \(\mu\), kg ms−1

0.03499

Latent heat, L, J kg−1 K−1

176,000

Volumetric expansion coefficient, \(\beta\), K−1

100 × 10–6

4.86 × 10–6

Solidus, \({T}_{s}\), K

350

Liquidus, \({T}_{l}\), K

358

Nanoparticle diameter, \({d}_{p}\), nm

20