Isothermal Airflow Characteristics in the Animal-occupied Zone of a Slot-ventilated Swine Facility

dc.contributor.author Hoff, Steven
dc.contributor.department Agricultural and Biosystems Engineering
dc.date 2018-02-13T10:14:44.000
dc.date.accessioned 2020-06-29T22:39:04Z
dc.date.available 2020-06-29T22:39:04Z
dc.date.copyright Sun Jan 01 00:00:00 UTC 1995
dc.date.embargo 2013-04-30
dc.date.issued 1995
dc.description.abstract <p>Airspeed and turbulence measurements were collected in a full-scale swine grower facility. Data were collected in three horizontal planes at eight axial locations from the inlet sidewall. Three inlet slot heights (20, 40, and 60 mm) and two fan stages resulted in six ventilating conditions investigated. The resulting 2 ¥ 3 ¥ 8 factorial experiment showed that fan stage, inlet height, and axial position from the inlet significantly affected (p < 0.01) airspeed variations in the animal-occupied zone (AOZ). Correlations between the AOZ and a convenient measuring plane (MP) were sought. AOZ airspeed was highly correlated with MP airspeed (rxy = 0.91). AOZ turbulent intensity (rxy = –0.51) and turbulent kinetic energy (rxy = 0.75) were moderately correlated with MP airspeed. AOZ turbulence levels were not correlated with MP turbulence levels. A procedure, consistent with the system characteristic technique, is proposed for predicting axial variations in AOZ airspeed. The technique can be used to assess AOZ airspeed levels relative to penning layout and ventilating conditions.</p>
dc.description.comments <p>This article is from <em>Transactions of the ASAE </em>38, no. 6 (1995): <a href="http://elibrary.asabe.org/abstract.asp?aid=28013&t=3&dabs=Y&redir=&redirType=" target="_blank">1843–1852</a>.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/abe_eng_pubs/346/
dc.identifier.articleid 1639
dc.identifier.contextkey 4090381
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath abe_eng_pubs/346
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/1102
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/abe_eng_pubs/346/1995_HoffSJ_IsothermalAirflowCharacteristics.pdf|||Fri Jan 14 23:42:26 UTC 2022
dc.subject.disciplines Agriculture
dc.subject.disciplines Bioresource and Agricultural Engineering
dc.subject.keywords Swine facility
dc.subject.keywords Ventilation
dc.subject.keywords Airflow
dc.subject.keywords Airspeed
dc.title Isothermal Airflow Characteristics in the Animal-occupied Zone of a Slot-ventilated Swine Facility
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 98b46d48-66a2-4458-9b42-8c4aa050664d
relation.isOrgUnitOfPublication 8eb24241-0d92-4baf-ae75-08f716d30801
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