A numerical investigation of air flow and temperature distribution in a ventilated room

Kivva, T

A numerical investigation of air flow and temperature distribution in a ventilated room

Kivva, T

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Publication Type:: Thesis
Issue Date:: 2011

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Field	Value	Language
dc.contributor.author	Kivva, T
dc.date.accessioned	2014-09-25T06:16:36Z
dc.date.available	2014-09-25T06:16:36Z
dc.date.issued	2011
dc.identifier.uri	http://hdl.handle.net/10453/29864
dc.description	University of Technology, Sydney. Faculty of Engineering and Information Technology.	en_US
dc.description.abstract	A numerical investigation of ventilation enhancement by a roof-mounted fan has been performed. The commercial code CFD-ACE is used for the quantitative and qualitative analysis of velocity and temperature distributions in a ventilated room . The parametric study is based on the results of flow and thermal fields obtained from the numerical simulations of three-dimensional models to optimise the location and through flows of a roof-mounted fan to minimise the cooling time of a space once the fan is switched on. The four ventilator locations have been modelled and the environmental indoor conditions analysed for different speeds of extracted and injected air and temperature of walls. For all cases, Reynolds Average Navier-Stokes, continuity, energy and k-ε equations were defined for steady state and transient, incompressible, turbulent air flows. The second order upwind differential scheme was used and Boussinesq approximation was applied. The equations were solved by using a commercial code based on the finite volume method in a staggered grid system.	en_US
dc.format	Thesis (ME)	en_US
dc.language.iso	en	en_US
dc.relation	https://opus.lib.uts.edu.au/bitstream/10453/29864/8/02Whole.pdf
dc.rights	au.edu.uts.lib/ppc
dc.rights	info:eu-repo/semantics/openAccess
dc.rights	The author owns the copyright in this thesis including all reproduction and reuse rights for the work. The work may not be altered without the permission of the copyright owner. Attribution is essential when quoting or paraphrasing from this thesis.
dc.title	A numerical investigation of air flow and temperature distribution in a ventilated room	en_US
dc.type	Thesis
utslib.copyright.status	open_access

Abstract:

A numerical investigation of ventilation enhancement by a roof-mounted fan has been performed. The commercial code CFD-ACE is used for the quantitative and qualitative analysis of velocity and temperature distributions in a ventilated room . The parametric study is based on the results of flow and thermal fields obtained from the numerical simulations of three-dimensional models to optimise the location and through flows of a roof-mounted fan to minimise the cooling time of a space once the fan is switched on. The four ventilator locations have been modelled and the environmental indoor conditions analysed for different speeds of extracted and injected air and temperature of walls. For all cases, Reynolds Average Navier-Stokes, continuity, energy and k-ε equations were defined for steady state and transient, incompressible, turbulent air flows. The second order upwind differential scheme was used and Boussinesq approximation was applied. The equations were solved by using a commercial code based on the finite volume method in a staggered grid system.

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http://hdl.handle.net/10453/29864