Humidity change rate control in intermittently heated historic buildings

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F20%3A00347250" target="_blank" >RIV/68407700:21220/20:00347250 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1051/e3sconf/202017215004" target="_blank" >https://doi.org/10.1051/e3sconf/202017215004</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/e3sconf/202017215004" target="_blank" >10.1051/e3sconf/202017215004</a>

Result language
angličtina
Original language name
Humidity change rate control in intermittently heated historic buildings
Original language description
Many massive historic buildings such as stone churches are intermittently heated. The predominant heating strategy is to heat the building with as high heating power as possible to achieve a fast and energy efficient heat-up process. However, the fast change rate of temperature induces a high change rate of relative humidity, which can be dangerous for interiors and objects in churches. It has been suggested that the change rate of relative humidity should be limited with respect to conservation. Desorption from the walls has a significant effect on the change rate of relative humidity. Typically, the absolute humidity can increase by 50% when the church is heated. Based on a hygrothermal model that allows for a prediction of both temperature and absolute humidity as function of time, this paper presents a model-based feed-forward control algorithm that calculates the maximum hourly heating power increase allowed for limit the change rate in relative humidity to a pre-defined value. The control algorithm is validated using simulations.
Czech name
—
Czech description
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Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
E3S Web of Conferences Volume 172 (2020) - 12th Nordic Symposium on Building Physics (NSB 2020)
ISBN
—
ISSN
2555-0403
e-ISSN
2267-1242
Number of pages
6
Pages from-to
—
Publisher name
EDP Sciences
Place of publication
Les Ulis Cedex A
Event location
Tallinn
Event date
Sep 7, 2020
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000594033400143

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