期刊名称：International Journal of Conservation Science
印刷版ISSN：2067-533X
电子版ISSN：2067-8223
出版年度：2017
卷号：8
期号：1
页码：43-50
出版社：Alexandru Ioan Cuza University of Iasi
摘要：A series of laboratory tests were conducted on a commercial device for active relative humidity control of display cases to assess the ability of the machine to control a medium format (3.45 m3) museum display case. An extreme museum environment with large relative humidity and temperature fluctuations was simulated and different air leakage rates were produced (0.1 - 0.5 - 6 AER/day) on a purposely-made display case. The machine was shown to work very effectively for both in humidify and dehumidifying for conditions corresponding to very well sealed ( AER 0.1) to medium sealed (AER 0.5). On a very poorly sealed enclosure (AER 6), the external environmental fluctuation resulted in internal fluctuations but the machine very effectively mitigated these effects. The use of the machine in positive pressure mode and (optional) recirculating mode was shown to be irrelevant to the ability of the machine to control the relative humidity. Positive pressure mode provides a constant flow to remove VOC's from the showcase (which could contribute to artefact degradation.), and to prevent ingress of ambient pollutants.
关键词：Showcase; Climate; Active conditioning; Microclimate; Relative humidity
