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Isetti, Carlo and Magrini, Anna and Nannei, Enrico (1996) The Application of Vapour-Permeable Synthetic Membranes to the Climatic Stabilization of Museum Showcases. Studies in Conservation, 41 (4). pp. 229-240. ISSN 00393630


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This paper describes a novel technique to stabilize the relative humidity (RH) of the air inside museum showcases by using a synthetic hydrophobic membrane coupled with a hygroscopic solution in a membrane contactor. RH-monitoring data for two identical test cases, one of them controlled by a set-up with a plane-plate membrane contactor crossed by forced air and lithium chloride (LiCI) solution flows, show a significant stabilizing effect on RHfluctuations. A theoretical model permits forecasts in close agreement with the experimental RH data. Further calculations carried out over a one-year period show that notable damping of external RH variations can be obtained by using a low air circulation rate, small membrane surface area and low solution mass per unit case volume. A more general analytical solution in harmonic conditions is derived and discussed.

Item Type: Article
Uncontrolled Keywords: RH-monitoring
Subjects: English > Climate Control
Depositing User: Malin Bekkebråten
Date Deposited: 11 Nov 2008 10:46
Last Modified: 29 Dec 2016 14:10

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