Research On The Air Distribution Of New Angle Air Distributor

As we all know,people spend most of their time indoors,and with the continuous improvement of people's quality of life,they also have higher requirements for indoor thermal environments.As an important part of indoor air conditioning,air flow organization directly affects indoor air quality and thermal comfort of the human body.In addition,improper airflow organization can easily cause energy waste.At present,the indoor air conditioning of a building mainly depends on a certain fixed airflow organization form,and changes the air supply temperature and air speed to meet the requirements of indoor thermal comfort.This approach often leads to insufficient adjustment methods,narrow scope of application,and energy waste.Aiming at these problems,on the basis of retaining the original characteristics of each airflow organization form,this project proposed an angular air supply system.The system is easy to install and simple to operate.By adjusting the angle of the louver tuyere of the air supply box,three types of airflow organization modes,mainly horizontally attached jet,vertical attached jet,and radial airflow,can be realized.This article first establishes a full-scale experimental model and conducts statistics and analysis of indoor air characteristics through indoor measurement points.Due to the limited number of experimental measurement points and the inability to directly reflect its distribution,numerical simulation of airflow organization in the form of diagonal air supply was adopted for CFD.This numerical simulation conforms to the k-? model,which is more extensive and more accurate in wall-bound flow,is selected and used The experimental data verify the accuracy of the numerical simulation results.The results show that the numerical simulation results can be used as a basis for the study of the characteristics of the air flow under the angular air box.Therefore,a combination of experiments and numerical simulations was used to conduct preliminary investigations on the different airflow organizational forms of the angular air supply box,and the temperature,velocity distribution,head and foot temperature difference,and temperature unevenness of the human activity area under different air supply types were obtained Characteristics,air distribution characteristics,air distribution index and ventilation efficiency.Based on theabove characteristics analysis,we have a preliminary understanding of indoor air quality,comfort,and energy saving under different airflow organizational forms of the diagonal air distribution system,and propose an energy-saving and comfortable air conditioning based on the angular air supply system Control Strategy.The research shows that under the angle air supply system,the control strategy with vertical attached jet as the main,horizontal attached jet and radial air as the supplementary control strategy can not only meet the thermal comfort requirements of the work area,but also have a good energy saving effect.