Skip to main content
U.S. flag

An official website of the United States government

Modelling a CLT specimen protected with gypsum exposed to parametric fire curve heat flux

Formally Refereed
Authors: LINDA MAKOVICKA OSVALDOVA, PAULINA MAGDOLENOVA, FRANK MARKERT, SAMUEL L. ZELINKA, LOUISE FREDERIKKE ENOKSEN, MALTHE KLINT
Year: 2022
Type: Scientific Journal (JRNL)
Station: Forest Products Laboratory
DOI: https://doi.org/10.37763/wr.1336-4561/67.2.254267
Source: Wood Research journal

Abstract

This paper models bench-scale experiments using computational fluid dynamics (CFD). The experiments measured the temperature profiles of fire-protected cross laminated timber (CLT) specimens exposed to parametric fire curve. The bench-scale experiment specimen is 250 x 250 mm and consists of a CLT panel 100 mm with three layers of gypsum plasterboard 15.5 mm as thermal and fire insulation The specimens were exposed to a heat flux generated by a heat-transfer rate inducing system (H-TRIS) device. Two numerical models were created in order to copy the experiment conditions, one by using basic modelling techniques and one using advanced method. Comparing the layer temperature values of the experiment and basic model, a great difference was found. The difference between experimental and model temperatures increases the closer the analysed layer is to the heat source. The results show a good agreement between the model and the experiments, especially for the advanced numerical model.

Keywords

CLT panel, gypsum-plaster board, H-TRIS, parametric fire curve, CFD model, fire protection

Citation

Makovicka Osvaldova, Linda; Magdolenova, Paulina; Markert, Frank; Zelinka, Samuel L.; Enoksen, Louise Frederikke; Klint, Malthe. 2022. Wood Research. 67(2): 254-267. https://doi.org/10.37763/wr.1336-4561/67.2.254267.
Citations
https://www.fs.usda.gov/research/treesearch/64258