Guatemala portable energy storage box material

What is the cooling performance of a PCM-based cold thermal energy storage box?

Melting points of the PCMs varies the box cooling time from 2.1 to 9.6 h. The vacuum insulated panel can prolong the cooling time of the box to 46.5 h. Cooling performance of a portable box integrating with phase change material (PCM)-based cold thermal energy storage (TES) modules was studied and reported in this paper.

Which insulating material is used to insulate a box?

The distribution of 20 % PCM at the top and 80 % PCM on the inner wall in the box was applied, and the PU was chosen as the insulating material of the box. Fig. 10. Comparisons of the central temperature of the box with the PCMs having different melting points.

What is thermal energy storage with phase change materials (PCMs)?

Thermal energy storage (TES) with phase change materials (PCMs) has several advantages including large energy density [18, 19] and constant temperature during the phase transition [20, 21]. Such an approch has been studied extensively for improving the performance of the conventional stationary refrigeration systems [22, 23].

Is PU based portable box better than PCM based box?

Considering the cost, the PU based box seems more feasible for the real case. Here, the comparison was carried out to show the big effect of insulation for the PCM-based portable box. As the portable box is expected to have as large internal space for carrying items as possible, this leads to the limited PCMs used in the box.

What are the dimensions of a portable box?

Physical model Fig. 1 shows the portable box studied on this work, which is one of the typical boxes in practical applications. The outer dimensions of the portable box are 430 mm (Length) × 285 mm (Width) × 345 mm (Height), and the internal dimensions are 355 mm (L) × 215 mm (W) × 265 mm (H).