The 98% pure Heneicosane(C21H44) was used as the phase change material(PCM).

采用纯度为98%的正21烷（C21H44）作为相变材料（PCM）。

The advantages of phase change material are elaborated.

阐述了相变材料储能装置的优点。

Phase Change Materials (PCM) is a high thermal storage substance.

相变材料是一种高效的贮热物质。

Solid liquid phase change latent thermal storage is commonly used.

固液相变潜热蓄热是通常采用的蓄热方式。

The mechanism forming solid - solid phase change material was examined.

探讨了该固-固相转变材料形成的机理。