Comparison of two modeling methods for the prediction of degree−hours and heat−stress likelihood in a swine building

dc.contributor.author	Παναγάκης, Παναγιώτης	el
dc.contributor.author	Αξαόπουλος, Πέτρος Ι.	el
dc.date.accessioned	2015-01-08T15:40:56Z
dc.date.issued	2015-01-08
dc.identifier.uri	http://hdl.handle.net/11400/3552
dc.rights	Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/us/	*
dc.subject	Swine housing
dc.subject	Energy requirements
dc.subject	Χοιροστάσιο
dc.subject	Ενεργειακές απαιτήσεις
dc.title	Comparison of two modeling methods for the prediction of degree−hours and heat−stress likelihood in a swine building	en
heal.type	journalArticle
heal.classification	Agriculture
heal.classification	Livestock
heal.classification	Γεωργία
heal.classification	Κτηνοτροφία
heal.classificationURI	http://skos.um.es/unescothes/C00112
heal.classificationURI	http://skos.um.es/unescothes/C02327
heal.classificationURI	N/A-Γεωργία
heal.classificationURI	N/A-Κτηνοτροφία
heal.keywordURI	http://lod.nal.usda.gov/9258
heal.keywordURI	http://lod.nal.usda.gov/21415
heal.identifier.secondary	ISSN 0001−2351
heal.dateAvailable	10000-01-01
heal.language	en
heal.access	forever
heal.recordProvider	Τ.Ε.Ι. Αθήνας. Σχολή Τεχνολογικών Εφαρμογών. Τμήμα Μηχανικών Ενεργειακής Τεχνολογίας Τ.Ε.	el
heal.publicationDate	2004
heal.bibliographicCitation	Panagakis, P. and Axaopoulos, P. (2004). Comparison of two modeling methods for the prediction of degree−hours and heat−stress likelihood in a swine building. Transactions of the ASAE. 47(2). pp. 585-590. American Society of Agricultural Engineers.	en
heal.abstract	The use of a stepwise steady−state method based on the solution of time−dependent energy and mass balance equations, thus referred as the transient method, is proposed instead of the traditional steady−state method for predicting degree−hours. The proposed method makes use of real climatic, structural, and animal data. It is more accurate in calculating the heating and cooling needs and the microenvironment inside a growing−finishing swine building and in evaluating the hourly likelihood of swine heat−stress. More specifically, the heating degree−hours estimated using the proposed method were only 1.3% of those calculated with the steady−state method, whereas the cooling degree−hours estimated using the steady−state method were only 26.0% of those calculated with the proposed method. Growing−finishing swine potentially experienced minor, medium, and extreme heat−stress during “cold,” “mild,” and “hot” weather, respectively.	en
heal.publisher	American Society of Agricultural Engineers	en
heal.journalName	Transactions of the ASAE	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true