Experimental and numerical study of an indoor displacement ventilation system
This thesis reports a new set of experimental data and presents an in-depth analysis of the flow physics of a jet stream produced by a large quarter-round corner-mounted displacement diffuser. The air velocity, temperature and turbulence intensity inside the displacement ventilation (DV) jet have be...
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ndltd-LACETR-oai-collectionscanada.gc.ca-MWU.1993-163162014-03-29T03:46:22Z Experimental and numerical study of an indoor displacement ventilation system Fatemiardestani, Seyediman Jr Wang, Bing-Chen (Mechanical and Manufacturing Engineering) Kuhn, David C. S. (Mechanical and Manufacturing Engineering) Rajapakse, Athula (Electrical and Computer Engineering) Displacement ventilation Diffuser Buoyancy Turbulence Supply boundary condition Thermal comfort This thesis reports a new set of experimental data and presents an in-depth analysis of the flow physics of a jet stream produced by a large quarter-round corner-mounted displacement diffuser. The air velocity, temperature and turbulence intensity inside the displacement ventilation (DV) jet have been thoroughly analyzed and compared with the reported findings of previous studies and model predictions. Furthermore, thermal comfort has been analyzed using the measured data following the ASHRAE standard. This thesis also aims at establishing an accurate numerical approach for simulating the heat and fluid flow in a room ventilated by a DV system. The supply boundary condition has been thoroughly investigated, which includes tests of the conventional box and momentum modeling methods, and proposal of a more accurate modeling approach. In addition, the predictive accuracy of the standard k-ϵ, RNG k-ϵ, SST k-ω and RSM turbulence models has been examined against the experimental data. 2013-02-07T16:05:28Z 2013-02-07T16:05:28Z 2013-02-07 http://hdl.handle.net/1993/16316 |
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Displacement ventilation Diffuser Buoyancy Turbulence Supply boundary condition Thermal comfort |
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Displacement ventilation Diffuser Buoyancy Turbulence Supply boundary condition Thermal comfort Fatemiardestani, Seyediman Jr Experimental and numerical study of an indoor displacement ventilation system |
description |
This thesis reports a new set of experimental data and presents an in-depth analysis of the flow physics of a jet stream produced by a large quarter-round corner-mounted displacement diffuser. The air velocity, temperature and turbulence intensity inside the displacement ventilation (DV) jet have been thoroughly analyzed and compared with the reported findings of previous studies and model predictions. Furthermore, thermal comfort has been analyzed using the measured data following the ASHRAE standard.
This thesis also aims at establishing an accurate numerical approach for simulating the heat and fluid flow in a room ventilated by a DV system. The supply boundary condition has been thoroughly investigated, which includes tests of the conventional box and momentum modeling methods, and proposal of a more accurate modeling approach. In addition, the predictive accuracy of the standard k-ϵ, RNG k-ϵ, SST k-ω and RSM turbulence models has been examined against the experimental data. |
author2 |
Wang, Bing-Chen (Mechanical and Manufacturing Engineering) |
author_facet |
Wang, Bing-Chen (Mechanical and Manufacturing Engineering) Fatemiardestani, Seyediman Jr |
author |
Fatemiardestani, Seyediman Jr |
author_sort |
Fatemiardestani, Seyediman Jr |
title |
Experimental and numerical study of an indoor displacement ventilation system |
title_short |
Experimental and numerical study of an indoor displacement ventilation system |
title_full |
Experimental and numerical study of an indoor displacement ventilation system |
title_fullStr |
Experimental and numerical study of an indoor displacement ventilation system |
title_full_unstemmed |
Experimental and numerical study of an indoor displacement ventilation system |
title_sort |
experimental and numerical study of an indoor displacement ventilation system |
publishDate |
2013 |
url |
http://hdl.handle.net/1993/16316 |
work_keys_str_mv |
AT fatemiardestaniseyedimanjr experimentalandnumericalstudyofanindoordisplacementventilationsystem |
_version_ |
1716660686947352576 |