Heat transfer analysis of roll-bond evaporator in a small-scale household refrigerator operating with R600a

This paper presents the experimental and theoretical assessment of thermal behaviour a roll-bond evaporator in small-scale household refrigerator using refrigerant R600a as working fluid. The data were compared with general correlation employed to evaluate heat transfer convection (HTC) radiation vertical horizontal plates evaporator. is placed at top side refrigerator. To provide right boundary state evaporator, refrigerated chamber was taken into consideration. acquisition system setup are described. local convective coefficient (CHTC) determined for variation heating power. In case small spaces, through cannot be neglected. CHTC internal walls lower than that exterior walls. equipped an electric static heater corresponding cooling capacity. steady-state capacity predictions based on enthalpy differences source energy equation balancing 9.66% 0.88 % higher manufacturing data. results achieved good agreement when compared.