Simulation of airflow in lecture rooms

Lim , Soon Chong Johnson and Husain, Adnan and Tee , Boon Tuan Simulation of airflow in lecture rooms. In: Proceedings of The AEESAP International Conference 2005, 7-8 June 2005, Kuala Lumpur.

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Abstract

The purpose of this study is to perform simulation of airflow in lecture rooms using Computational Fluid Dynamics (CFD) technique. Two lecture rooms with different location of air-conditioning units are chosen as study fields for measurements and simulation purposes. The air distribution parameters addressed in this study are air velocity and air temperature. Measurements were also done on the boundary parameters of the room such as air-conditioning inlet and outlet conditions. The simulations were performed by using CFX software without involving occupants. Two types of turbulence models were compared for suitability in lecture room modeling. Validation of results through linear regression technique was performed using SPSS software. Based on the stream plots, the zones below the air-conditioning units were identified to have inadequate airflow. In overall, the RNG k – e Turbulence Model yields better prediction than Reynolds Stress Turbulence Model. Simulation can be a useful technique to predict air distribution performance in a lecture room for a better thermal environment.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:airflow; simulation; modeling
Subjects:T Technology > TH Building construction > TH7005-7699 Heating and ventilation. Air conditioning
Divisions:Faculty of Technical and Vocational Education > Department of Professional Education
ID Code:2680
Deposited By:Normajihan Abd. Rahman
Deposited On:07 Nov 2012 16:25
Last Modified:16 Jul 2014 11:56

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