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Klenz Larsen, Poul and Broström, Tor (2011) Climate Control in Cultural Heritage Buildings in Denmark. In: Developments in Climate Control of Historic Buildings. Proceedings from the International Conference "Climatization of Historic Buildings, State of the Art", December 2, 2010, Linderhof Palace.

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Conservation heating has been used for decades to control the RH in cultural heritage buildings. But if the building is not used for living or working, heating is not needed for human comfort. The chemical decay of organic materials depends mainly on temperature, so it is better for preservation to reduce heating. The air exchange rate is related to the design of the building envelope. With rising energy prices humidity control by dehumidification may be an attractive alternative. The potential for energy efficient RH control was examined for a generic building exposed to the monthly average outside temperature and RH in Denmark. The indoor temperature was allowed to follow the outside average, whereas the indoor RH was controlled to 40 % 50 % 60 % or 70 %. Dehumidificationwas implemented in three different buildings: A recent museum store, a medieval church, and an 18thcentury country mansion. The energy consumption depends on the RH set point, the air exchange rate and the source of liquid moisture to the building. The air exchange rate related to the design of the building envelope. Single glazed windows and doors are the most important sources of leakage to buildings. Lack of maintenance may lead to poor performance of the dehumidifier and waste energy.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: humidity control, energy efficiency, air exchange rate, case studies
Subjects: English > Climate Control
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Depositing User: Anna Samuelsson
Date Deposited: 03 Jan 2012 10:34
Last Modified: 04 Apr 2017 10:56

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