Please use this identifier to cite or link to this item: https://doi.org/10.1016/S0360-1323(98)00015-8
Title: Mixing characteristics in a ventilated room with non-isothermal ceiling air supply
Authors: Xue, H. 
Shu, C. 
Issue Date: 1-May-1998
Citation: Xue, H.,Shu, C. (1998-05-01). Mixing characteristics in a ventilated room with non-isothermal ceiling air supply. Building and Environment 34 (3) : 245-251. ScholarBank@NUS Repository. https://doi.org/10.1016/S0360-1323(98)00015-8
Abstract: A two-dimensional turbulence k-ε model is used to predict distribution of air velocity, temperature and turbulence kinetic energy in an air-conditioned room using ceiling air supply. Mixing characteristics of the airflow are analyzed under different air supply velocities and temperatures. A modified Archimedes number is correlated with the parameters characterizing heat transfer, ventilation system, and turbulence kinetic energy of room air flow. Significant correlations have been shown. It is found that the linear ceiling air supply air-conditioning system with a high level return air provides excellent air mixing across a wide range of Archimedes numbers. The results are useful for air-conditioning design and thermal comfort study.
Source Title: Building and Environment
URI: http://scholarbank.nus.edu.sg/handle/10635/58490
ISSN: 03601323
DOI: 10.1016/S0360-1323(98)00015-8
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