Phase change materials (PCM ) for Insulating Refrigerator Storages

                                               Lmia Y      CHO  G. 

  Cite As : 

 Lmia Y & CHO  G."   Phase change materials (PCM ) for Insulating  Refrigerator Storages    ".Machinery Manufacture and Reliability ,Allerton.Press, Vol,49, No1, pp1064-1078( 2019)
 

In this research the effectiveness of thermal insulation was investigated, where the PCM materials were assumed to be used, this material is used to absorb the heat from any hot region and it has low thermal conductivity. The literature review chapter discussed the properties of this type of materials, a model was suggested for the refrigerator truck storage, the dimensions of this storage was created in solidworks software, then the temperature distribution was simulated using solidworks software through the refrigerator walls, where the temperature inside the refrigerator increases up to 301.9 K, when the original design is used, however the initial design inside the refrigerator was assumed 273 K. The heat flux and the temperature distribution over the design was calculated according to software results where the maximum heat transfer through the wall about 20w /m2. 

Three configurations of the fins were suggested to be attached to the internal surface of the refrigerator, where the PCM material was assumed to be used to reduce the heat transfer through the walls. The solidworks simulation was used to assess these materials where the temperature of the surface was calculated for each design, for the circular fins the maximum inside temperature was about 288.9 K, and 289.1 K for rectangular fins, finally 290.1 for the triangle fins. The temperature distribution over the different fins shows the temperature will decrease about 11 -13 K approximately when these fins are attached to the internal surface of the refrigerator walls.