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Robustness of Air Distribution in Plenum-Based Ductless Ventilation Systems
University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för inomhusmiljö. (Lab. Ventilation och Luftkvalitét)
2004 (English)In: The International Journal of Ventilation, ISSN 1473-3315, E-ISSN 2044-4044, Vol. 3, no 2, p. 105-118Article in journal (Other academic) Published
Abstract [en]

This paper introduces a concept of robustness of an air distribution method, which is defined as being capable of meeting the ventilation requirements during varying operational conditions. The robustness performance may be particularly important when the system allows individual control of the supply air parameters. As a preliminary example, plenum-based (ductless) air distribution methods are studied using computational fluid dynamics. Among the four basic air distribution methods in plenum-based systems, it is found that the floor supply and ceiling return system does not always produce the conventional displacement ventilation system performance when the heat sources are not concentrated. The ceiling supply with ceiling return produces the best robustness performance over a wide range of supply velocities.

Place, publisher, year, edition, pages
2004. Vol. 3, no 2, p. 105-118
Identifiers
URN: urn:nbn:se:hig:diva-869OAI: oai:DiVA.org:hig-869DiVA, id: diva2:117531
Available from: 2007-12-10 Created: 2007-12-10 Last updated: 2018-03-13Bibliographically approved

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Sandberg, Mats

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