Experimental study on the effect of spray evaporative condensation on air conditioning performance
In order to reduce the energy consumption of air conditioning units in high-temperature working conditions and improve the energy efficiency ratio of the units,this study proposes to ap-ply the spray evaporative condensation technology to air conditioning condensers.Firstly,the wa-ter flow required for spraying was theoretically calculated,and the nozzles were used to cool the V-type condenser of air conditioner;then,in the standard enthalpy difference laboratory,the rele-vant experimernts of different distances between the nozzles and the condenser,different injection angles and intermittent spray were carried out,and the energy-saving effect of spray under differ-ent working conditions were analyzed.The results show that the spray evaporation condensation technology applied to the condenser has a better energy-saving effect.The optimal installation dis-tance between the nozzle and condenser is 40 cm,the optimal spray angle of the nozzle is 60°,in the indoor dry bulb temperature of 37 ℃,outdoor dry/wet bulb temperature of 35/27 ℃,the en-ergy efficiency ratio of the unit increases from 4.0 to 4.89,the energy efficiency improvement rate is 22.2％,and the energy efficiency improvement rate decreases with the drop of the outdoor tem-perature.The technology is more suitable for high-temperature areas.It can provide a reference for the application of the technology in air conditioner condenser.
spray evaporative condensationnozzle arrangementcondensing pressurecompres-sion ratioenergy efficiency ratio
万方数据
维普
