Experimental Study on the Performance of Air-Cooled Condensing Unit in Groove

Abstract

Unreasonable sizes of grooves would aggravate the hot air recirculation and improve the air inlet temperature of outdoor units, which would result in a degradation of the energy efficiency ratio (EER) of air conditioner. This study used controlling variables method to design 40 kinds of working conditions by changing the distance from outdoor unit to each wall as well as discussed the change rules of the air inlet temperature of outdoor unit and EER. Finally, it is concluded by the analysis for experimental data that the influence of change in width or height of grooves on the heat dispersion performance of outdoor unit is significant, but that of change in depth of grooves is slight.