A CFD study of airflow and air-conditioning systems in buildings

Concern has increasingly been expressed over the quality of indoor environments, encompassing aural environments, lighting environments, thermal environments, and indoor air quality (1AQ). It is known that the indoor environmental quality (IEQ) has a significant impact on the health and working efficiency of the building occupancy. In this study, a computational fluid dynamics (CFD) programme was written and employed to model several typical examples of airflow and air-conditioning systems in buildings. These examples can be used to improve the configuration and design optimisation of the components of such air-conditioning systems. With the aid of TECPLOT software, the output data of the simulation modelling using the CFD programme can determine the plots of the velocity and pressure fields. The equations used in the CFD programme were solved using a finite volume time-integration Ni scheme. In order to simulate the flow, k-eturbulence models were utilized for the turbulent closure.