Public buildings have high requirements for the operation and regulation of air conditioning systems in buildings due to their large area,large number of occupants and large load fluctuations.In order to meet the comfort of indoor personnel while taking into account the energy saving of the air conditioning system,based on the CFD simulation model of an all-air air conditioning system in the exhibition hall of a museum in Qingdao City,the change of air supply volume of the air conditioning system with different numbers of indoor personnel and outdoor meteorological parameters is analysed,and it is concluded that the optimal airflow of the air conditioning system under the design conditions in the summer is 7 000 m3/h with different outdoor temperatures at the time of the rated 175 people,and when the number of indoor people decreases from 175 to 30,the optimal airflow decreases from 7 000 m3/h to 3 000 m3/h.By accurately adapting the airflow of the air-conditioning system under different working conditions,the total energy saving rate of the air-conditioning system can reach up to 55.81％under the premise of guaranteeing the comfort of the people in the room.The results of the study are of great significance in guiding the energy-saving operation and management of air-conditioning systems in public buildings.
public buildingsall-air air-conditioning systemthermal environment simulationCFD simulation
NETL
NSTL
万方数据
