A baroque hayrick as storage centre for pipe organs

A refurbished baroque hayrick in Bavaria is being used as museum storage for pipe organs. The indoor air relative humidity is very stable in the unheated hayrick, but the level of relative humidity is overall too high. Therefore different climatization strategies to improve the situation are being compared and evaluated using whole building simulation. The comparison of energy consumption shows that at first sight dehumidification uses less energy to reduce high moisture levels than conservation heating by a Temperierung wall heating system. When primary energy is considered, it becomes evident, that also warm-water systems can have a good performance in terms of the overall CO2 footprint, especially when renewable resources are used.