Natural ventilation induced by solar chimneys

Huynh, P

Natural ventilation induced by solar chimneys

Huynh, P

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Publisher:: The University of Auckland
Publication Type:: Conference Proceeding
Citation:: Proceedings of the 17th Australasian Fluid Mechanics Conference, 2010, pp. 1 - 4
Issue Date:: 2010-01

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Field	Value	Language
dc.contributor.author	Huynh, P https://orcid.org/0000-0002-8786-8472	en_US
dc.contributor.editor	Mallinson, GD	en_US
dc.contributor.editor	Cater, JE	en_US
dc.date	2010-12-05	en_US
dc.date.issued	2010-01	en_US
dc.identifier.citation	Proceedings of the 17th Australasian Fluid Mechanics Conference, 2010, pp. 1 - 4	en_US
dc.identifier.isbn	978-0-86869-129-9	en_US
dc.identifier.uri	http://hdl.handle.net/10453/16407
dc.description.abstract	Natural-ventilation flow through a two-dimensional but realsized square room is investigated numerically, using a commercial Computational Fluid Dynamics (CFD) software package. The flow is induced by a solar chimney positioned on the room's roof, and it is desired to have this flow passing through the lower part of the room for ventilation purpose. The chimney in turn is in the form of a parallel channel with one plate kept at a uniform temperature that is higher than that of the ambient air (by up to 40Â°C), while the other plate and all of the room's walls are insulated. Eftects on ventilation flow rate and flow pattern due to a range of changing factors are invcstigated. The factors include temperature of the chimney's heated plate, length and inclination of the chimney, its location and locations of the room's other openings, and the presence of a vertical partition in the room. It is found that all these factors affect either the flow rate or flow pattern, or both. Maximum flow rate is obtained when solar chimney is in a vertical position at a roofs corner, with its heated plate on the room side. On the other hand, flow rate increases with increasing solar plate's temperature and length, as expected, but the manner of the increase varies with relative positions behYcen the chimney and room inlcts.	en_US
dc.publisher	The University of Auckland	en_US
dc.relation.ispartof	Proceedings of the 17th Australasian Fluid Mechanics Conference	en_US
dc.relation.ispartof	Australasian Fluid Mechanics Conference	en_US
dc.title	Natural ventilation induced by solar chimneys	en_US
dc.type	Conference Proceeding
utslib.location	Auckland, New Zealand	en_US
utslib.location.activity	Auckland, New Zealand	en_US
utslib.for	0913 Mechanical Engineering	en_US
dc.location.activity	Auckland, New Zealand	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic Engineering
utslib.copyright.status	open_access
pubs.consider-herdc	true	en_US
pubs.place-of-publication	Auckland, New Zealand	en_US
pubs.start-date	2010-12-05	en_US

Abstract:

Natural-ventilation flow through a two-dimensional but realsized square room is investigated numerically, using a commercial Computational Fluid Dynamics (CFD) software package. The flow is induced by a solar chimney positioned on the room's roof, and it is desired to have this flow passing through the lower part of the room for ventilation purpose. The chimney in turn is in the form of a parallel channel with one plate kept at a uniform temperature that is higher than that of the ambient air (by up to 40Â°C), while the other plate and all of the room's walls are insulated. Eftects on ventilation flow rate and flow pattern due to a range of changing factors are invcstigated. The factors include temperature of the chimney's heated plate, length and inclination of the chimney, its location and locations of the room's other openings, and the presence of a vertical partition in the room. It is found that all these factors affect either the flow rate or flow pattern, or both. Maximum flow rate is obtained when solar chimney is in a vertical position at a roofs corner, with its heated plate on the room side. On the other hand, flow rate increases with increasing solar plate's temperature and length, as expected, but the manner of the increase varies with relative positions behYcen the chimney and room inlcts.

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http://hdl.handle.net/10453/16407