Refrigerant pack using natural material absorber delivery method of low-temperature stored goods using the refrigerant pack and method of using the refrigerant pack and a apparatus for delivering low-temperature delivery goods using the refrigerant pack

摘要

The present invention includes a case having a storage space therein, a cellulose-based absorber disposed in the storage space, and a water-based phase change material (PCM) that is absorbed in the absorber and used as a refrigerant, and the PCM When M is changed from a solid state to a liquid, the absorber prevents the water of the PCM from being liquefied, thereby delaying the liquefaction time of the water. Therefore, heat exchange between the inside and the outside of the cellulose-based absorber is not easy, so the time for liquefying the water-based PCM water absorbed by the absorber is delayed, so that the cooling effect lasts for a long time.