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Experimental study on vertical temperaturedistribution of indoor air in large space building under nozzleair supply condition in summer(PDF)


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Experimental study on vertical temperaturedistribution of indoor air in large space building under nozzleair supply condition in summer
Cai Ning1Wang Mengdi1Li Zhihao1Zhang Dongliang1Huang Chen2
1.College of Energy and Power Engineering,Nanjing Institute of Technology,Nanjing 211167,China; 2.School of Environment and Architecture,University of Science and Technology,Shanghai 200093,China
large space buildings nozzle air supply airflow distribution indoor air vertical temperature distribution
In order to study the vertical temperature distribution characteristics and its influencing factors of indoor air in a stratified air conditioning environment of large space buildings,the indoor temperature distribution of a large space building under different summer conditions is studied experimentally in this paper. Through the analysis of the influencing factors such as nozzle height,air supply volume and outdoor meteorological parameters,the characteristics of vertical temperature distribution and horizontal temperature distribution of indoor air are obtained. The results show that with the increase of the height of the nozzle and the volume of the air supply,the temperature layer increases,the vertical temperature distribution is not uniform,the large convection heat transfer is caused,and the horizontal temperature distribution tends to be uniform. There is a close correlation between the outdoor integrated temperature and the temperature and gradient of the non-air-conditioned zone. The research results in this paper can provide a reference for the airflow organization design of the nozzle air supply.


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Last Update: 2019-11-30