Hughes, BR and Ghani, S (2011) A numerical investigation into the feasibility of a passive-assisted natural ventilation device. International Journal of Sustainable Energy, 30 (4). 193 - 211. ISSN 1478-6451
Abstract
Various commercially available natural ventilation devices supply fresh air without mechanical assistance. These devices offer a low-energy alternative to mechanical air handling units. However, they often cannot satisfy recommended ventilation rates due to their dependence on both macro- and microclimate wind speeds. This work examines the feasibility of achieving the recommended fresh air delivery rates without impacting on the device energy requirements. A numerical investigation is carried out using a standard passive stack device geometry combined with a simulated low-powered axial fan. The investigation shows that a low-induced pressure of 20 Pa is enough to satisfy the legislative requirements. Depending on the macroclimate conditions, this induced pressure could be generated from a commercially available solar-powered system. As the fan system is only used in periods of low external wind velocities (1 m/s), it is termed a passive-assisted stack.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | (c) 2011, Taylor & Francis. This is an Accepted Manuscript of an article published by Taylor & Francis in the International Journal of Sustainable Energy on 5th July 2011, available online: http://www.tandfonline.com/10.1080/1478646X.2010.503275 |
Keywords: | CFD; passive building ventilation; built environment; sustainable energy resources |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Civil Engineering (Leeds) > Institute for Resilient Infrastructure (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 31 Jul 2014 11:47 |
Last Modified: | 31 Jul 2014 11:47 |
Published Version: | http://dx.doi.org/10.1080/1478646X.2010.503275 |
Status: | Published |
Publisher: | Taylor & Francis |
Identification Number: | 10.1080/1478646X.2010.503275 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:79897 |