Indoor Airflow Distribution in Repository Design: Experimental and Numerical Microclimate Analysis of an Archive
The majority of cultural heritage is stored in archives, libraries and museum storage spaces. To reduce degradation risks, many archives adopt the use of archival boxes, among other means, to provide the necessary climate control and comply with strict legislation requirements regarding temperature...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-04-01
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| Series: | Buildings |
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| Online Access: | https://www.mdpi.com/2075-5309/11/4/152 |
| _version_ | 1797538753983545344 |
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| author | Karin Kompatscher Rick P. Kramer Bart Ankersmit Henk L. Schellen |
| author_facet | Karin Kompatscher Rick P. Kramer Bart Ankersmit Henk L. Schellen |
| author_sort | Karin Kompatscher |
| collection | DOAJ |
| description | The majority of cultural heritage is stored in archives, libraries and museum storage spaces. To reduce degradation risks, many archives adopt the use of archival boxes, among other means, to provide the necessary climate control and comply with strict legislation requirements regarding temperature and relative air humidity. A strict ambient indoor climate is assumed to provide adequate environmental conditions near objects. Guidelines and legislation provide requirements for ambient indoor climate parameters, but often do not consider other factors that influence the near-object environment, such as the use of archival boxes, airflow distribution and archival rack placement. This study aimed to provide more insight into the relation between the ambient indoor conditions in repositories and the hygrothermal conditions surrounding the collection. Comprehensive measurements were performed in a case study archive to collect ambient, local and near-object conditions. Both measurements and computational fluid dynamics (CFD) modeling were used to research temperature/relative humidity gradients and airflow distribution with a changing rack orientation, climate control strategy and supply as well as exhaust set-up in a repository. The following conclusions are presented: (i) supplying air from one air handling unit to multiple repositories on different floors leads to small temperature differences between them. Differences in ambient and local climates are noticed; (ii) archival boxes mute and delay variations in ambient conditions as expected—however, thermal radiation from the building envelope may have a large influence on the climate conditions in a box; (iii) adopting night reduction for energy conservation results in an increased influence of the external climate, with adequate insulation, this effect should be mitigated; and (iv) the specific locations of the supply air and extraction of air resulted in a vertical gradient of temperature and insufficient mixing of air, and adequate ventilation strategies should enhance sufficient air mixing in combination with the insulation of external walls, and gradient forming should be reduced. |
| first_indexed | 2024-03-10T12:35:54Z |
| format | Article |
| id | doaj.art-8d8b030313e54114a7327674111871fd |
| institution | Directory Open Access Journal |
| issn | 2075-5309 |
| language | English |
| last_indexed | 2024-03-10T12:35:54Z |
| publishDate | 2021-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj.art-8d8b030313e54114a7327674111871fd2023-11-21T14:15:45ZengMDPI AGBuildings2075-53092021-04-0111415210.3390/buildings11040152Indoor Airflow Distribution in Repository Design: Experimental and Numerical Microclimate Analysis of an ArchiveKarin Kompatscher0Rick P. Kramer1Bart Ankersmit2Henk L. Schellen3Department of the Built Environment, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The NetherlandsDepartment of the Built Environment, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The NetherlandsCultural Heritage Agency of The Netherlands, 3800 BP Amersfoort, The NetherlandsDepartment of the Built Environment, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The NetherlandsThe majority of cultural heritage is stored in archives, libraries and museum storage spaces. To reduce degradation risks, many archives adopt the use of archival boxes, among other means, to provide the necessary climate control and comply with strict legislation requirements regarding temperature and relative air humidity. A strict ambient indoor climate is assumed to provide adequate environmental conditions near objects. Guidelines and legislation provide requirements for ambient indoor climate parameters, but often do not consider other factors that influence the near-object environment, such as the use of archival boxes, airflow distribution and archival rack placement. This study aimed to provide more insight into the relation between the ambient indoor conditions in repositories and the hygrothermal conditions surrounding the collection. Comprehensive measurements were performed in a case study archive to collect ambient, local and near-object conditions. Both measurements and computational fluid dynamics (CFD) modeling were used to research temperature/relative humidity gradients and airflow distribution with a changing rack orientation, climate control strategy and supply as well as exhaust set-up in a repository. The following conclusions are presented: (i) supplying air from one air handling unit to multiple repositories on different floors leads to small temperature differences between them. Differences in ambient and local climates are noticed; (ii) archival boxes mute and delay variations in ambient conditions as expected—however, thermal radiation from the building envelope may have a large influence on the climate conditions in a box; (iii) adopting night reduction for energy conservation results in an increased influence of the external climate, with adequate insulation, this effect should be mitigated; and (iv) the specific locations of the supply air and extraction of air resulted in a vertical gradient of temperature and insufficient mixing of air, and adequate ventilation strategies should enhance sufficient air mixing in combination with the insulation of external walls, and gradient forming should be reduced.https://www.mdpi.com/2075-5309/11/4/152indoor environmentcultural heritage storagearchivemonumental buildinghygrothermal measurementsCFD modeling |
| spellingShingle | Karin Kompatscher Rick P. Kramer Bart Ankersmit Henk L. Schellen Indoor Airflow Distribution in Repository Design: Experimental and Numerical Microclimate Analysis of an Archive Buildings indoor environment cultural heritage storage archive monumental building hygrothermal measurements CFD modeling |
| title | Indoor Airflow Distribution in Repository Design: Experimental and Numerical Microclimate Analysis of an Archive |
| title_full | Indoor Airflow Distribution in Repository Design: Experimental and Numerical Microclimate Analysis of an Archive |
| title_fullStr | Indoor Airflow Distribution in Repository Design: Experimental and Numerical Microclimate Analysis of an Archive |
| title_full_unstemmed | Indoor Airflow Distribution in Repository Design: Experimental and Numerical Microclimate Analysis of an Archive |
| title_short | Indoor Airflow Distribution in Repository Design: Experimental and Numerical Microclimate Analysis of an Archive |
| title_sort | indoor airflow distribution in repository design experimental and numerical microclimate analysis of an archive |
| topic | indoor environment cultural heritage storage archive monumental building hygrothermal measurements CFD modeling |
| url | https://www.mdpi.com/2075-5309/11/4/152 |
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