Energy saving performance of ventilation cooling for outdoor communication cabinets

The outdoor air temperature in Hefei is below 25 ℃ for about 77.5% of the year.In this paper,CFD numerical simulation is used to optimize the air distribution of the cabinet.The results show that the outdoor air equipment can be used to cool the outdoor communication cabinets in Hefei area.In order to make full use of outdoor natural cooling resources,based on the field measurement and numerical simulation of the typical outdoor communication cabinets in Hefei area,the linkage strategy of air conditioning and outdoor air equipment is proposed.The strategy shortens the operation time of air conditioning and thus saves energy.The results show that the energy consumption of air conditioning combined with outdoor air equipment is 46.8% of that of air conditioning alone.