Study of new cool storage materials for refrigerated vehicle in cold chain

Refrigerated vehicles can not be neglected in cold chain. The research status of cool storage technology used in refrigerated vehicles was summarized, the advantage and deficiency of hydrated crystalline salt storage and organic matter storage were compared and analyzed. Moreover, the thermal performance of a new phase change material (PCM) including melting point and undercooling during the phase change process was investigated by step cool method, and the new PCM for A level refrigerated vehicles was prepared. The results show that melting latent heat of the cool storage material is 249 kJ/kg, phase change temperature is -6.9°C, undercooling is 0.9°C, the material can be considered as an efficient cool storage material for refrigerated vehicles.