Abstract
The vapour compression refrigeration system is an important one among other thermal systems and consumes more energy. The efforts have been made in many ways to enhance the energy efficiency of refrigeration system from various points of view, including energy efficient refrigerants, replacing existing components, using phase change materials in the condenser and evaporator and adding nano-materials to the refrigerants. This work explores and describes the improvement of energy efficiency of the refrigeration system through the application of the phase change material between wall and coil of the evaporator cabin. The experimental results showed significant effects on system performance such as coefficient of performance increased by 7.1%, per energy consumption decreased by 6.7% and temperature variations were also relatively lower inside the freezer cabinet. This proposed concept would be useful in the event of power failures that are very usual in low grid reliability locations.
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