Study of ventilation cooling technology for telecommunication base stations: Control strategy and application strategy

Abstract

Ventilation cooling technology (VCT) has been widely used for the notable energy saving, low first costs and conveniences for application in China in recent years. A new control strategy of VCT was provided to guarantee the indoor air temperature and humidity environment and maximize the energy saving. A simulation evaluation method for the energy saving of VCT which can be used for the different types of telecommunication base stations (TBS) under different meteorological conditions was proposed. The relations between each influencing factor and the annual saved energy were analyzed. And the application strategy of VCT was concluded as follows: the higher internal heat and the lower energy efficiency ratio of air conditionings, the more obvious energy savings would be achieved. VCT is not applicable when the internal heat is lower than a certain value and is more applicable in the hotter regions. The high temperature set point of air conditionings should be raised and the fan power should be reduced. The air change rate should be decided with the internal heat. The lowest internal heat of TBS for applying VCT and the highest annual saved energy of VCT for all types of TBSs was also provided.