Development of New Cooling System using Nacelle Duct

In this paper, a new cooling system using a nacelle duct is proposed for the mechanical room in the househol d refrigerator. The conventional mechanical room consists of a condenser, a compressor and an axial fan. The axial fan is mainly responsib le for cooling the condenser and the compressor. The new cooling system is developed by replacing the axial fan with the nacelle duct in cluding the small centrifugal fan. The parametric study is carried ou t to find the optimum designs of the nacelle duct in terms of performance and efficiency. Through this study, it is revealed that the new sys tem can reduce the space, electrical power and noise compared with the conventional system