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Theoretical investigation of the heat demand for public baths
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.
1996 (English)In: Energy, ISSN 0360-5442, E-ISSN 1873-6785, Vol. 21, no 7-8, p. 731-737Article in journal (Refereed) Published
Abstract [en]

Public baths normally use outdoor air to remove moisture from the building. This procedure results in large heating demands. A theoretical hour-based method for estimation of the heating demand has been developed. The method allows for dynamic behaviour with correct time periods for each mass-transfer level. Results of predictions with this method have been compared with yearly estimates of the heating demand based on actual measurements in a public bath. The difference is 3%. A parametric study shows that the air temperature and relative humidity in the building strongly influence the heating demand. Comparisons with other prediction methods based on use of the duration curve or mean annual outdoor temperature show differences less than 5% from results obtained with the hour-based method. The simpler approaches (use of a duration curve or mean value) fail when minimum outdoor airflow must be considered, as will be the case, for instance, when comparing different energy-saving systems or design of components for the climate system.

Place, publisher, year, edition, pages
1996. Vol. 21, no 7-8, p. 731-737
National Category
Energy Engineering
Research subject
Energy Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-10234DOI: 10.1016/0360-5442(96)00014-XISI: A1996UN72900010Local ID: 8ff8c0a0-bb55-11db-b560-000ea68e967bOAI: oai:DiVA.org:ltu-10234DiVA, id: diva2:983174
Note
Godkänd; 1996; 20070112 (cira)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Westerlund, LarsDahl, JanJohansson, Lars

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