Abstract
Establishing suitable indoor climate conditions for exhibits in historical buildings is one of the main goals for curators in museums and exhibitions. Different guidelines in the field of preventive conservation provide therefore useful criteria and methods to prevent or to delay the deterioration of the objects of cultural heritage. Maintaining such a suitable indoor climate often needs the usage of expensive HVAC-equipment, whose installation occasionally damages the historical structure of such buildings and poses a problem for protection standards for historical monuments. The ongoing “HumFlow” project contributes to the solution of two problems: Firstly, avoiding damages to building structures provoked by installation of measurement devices and, secondly, gaining enough measurement data and information of humidity and energy transfer processes of walls and other surfaces by developing a minimal invasive measurement system. This paper focuses on the overall project goals, describes the test bed including experiment design, discusses the first results and provides a simple hygrothermal model of a flat wall. Therefore, it can be seen as an introduction for subsequent contributions of this project.
Highlights
Suitable indoor climate conditions in historical buildings have been discussed intensively over the last decades in the so called field of preventive conservation [1]
To establish a suitable indoor climate, given by preventive conservation guidelines, affordable measurement devices for the use of the control algorithms are needed and, at the same time, harming the building structure should be avoided. These two goals can be reached by the use of a minimal invasive measurement system
Temperature has a strong influence on the water vapour pressure, which in turn has a great effect on the relative humidity
Summary
Suitable indoor climate conditions in historical buildings have been discussed intensively over the last decades in the so called field of preventive conservation [1]. To establish a suitable indoor climate, given by preventive conservation guidelines, affordable measurement devices for the use of the control algorithms are needed and, at the same time, harming the building structure should be avoided. These two goals can be reached by the use of a minimal invasive measurement system. The resulting model will enable the usage of model-based control methods like model predictive control [8] for mobile dehumidifiers or humidifiers These advanced control strategies can improve the indoor climate in a suitable way, so that the mentioned guidelines are met. The practical implementation will not be discussed in detail, because a proof of concept should be realized at first
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