Experimental measurements and analysis of the indoor conditions in Italian museum storerooms: a study case

This paper presents a detailed analysis of the indoor microclimate in the storeroom of Oriental Art Museum of Venezia (Italy). Data of air temperature and air humidity collected during the years 2003-2004-2005 were elaborated to suggest which kind of materials can be safely stored in it. A dynamic simulation has been implemented in order to focus some interventions to improve the microclimatic conditions. Some different strategies were compared: (#1) the envelope improvement; (#2) the temperature and humidity control; (#3) the summer ventilation. The strategy #1 gives a good improvement during spring and autumn, but are not enough to mitigate the most severe external conditions. The strategy #2 is necessary to really improve the indoor microclimate even if the great variability of the objects inside the storeroom imposes to put in action different control strategies for the air humidity set-point. Strategy #3 is not a good solution because it contributes to decrease the cooling needs, but the energy need for dehumidification increases.