Experimental Study of Factors Affecting the Performance of a Semi-enclosed Outdoor Air-conditioning Unit

摘要

To achieve a beautiful appearance,the outdoor machine of a residential air conditioning system is often placed in a groove and shield with a louver.This paper presents split air conditioner outdoor machine in the semi closed space within the optimal locations and louver form.This study is based on the enthalpy difference laboratory platform,to evaluate an outdoor unit installation and lover form effect on air-conditioning energy and EER.The results show that the condenser should be more than 80mm away from the walls; The EER increased with increasing distance and the optimal distance away from the fan louver was approximately 300mm.The heat dissipation effects of the air conditioner were better with a greater louver spacing.The optimal louver angle was approximately 30° when the outdoor wind come from the lateral direction.The air-conditioning efficiency was much higher than when the wind came from the front.Therefore,the outdoor unit and the local dominant wind direction should be presented to the lateral wind.