Modelling sorption processes of 10-h dead Pinus pinaster branches
نویسندگان
چکیده
Background Forest fuel moisture content (FMC) is an important parameter that determines wildfire risk; therefore, its accurate prediction of great importance. In the absence rainfall, dead FMC changes mainly by water vapour sorption processes.Aims present work, processes 10-h Pinus pinaster branches (PPBs) were studied in order to develop a model for this type.Methods Laboratory tests used determine curves, timelag and equilibrium (EMC) different environmental conditions. Sorption curves EMC modelled with existing models. Dead PPBs was determined field carried out central Portugal validate models.Key results not pure exponential functions, but had values until reached. allowed us obtain sigmoid curve hysteresis effect.Conclusions Comparing predicted observed FMCs PPB, Modified Henderson Pabis models Van Wagner show high ability.Implications The can be applied early fire risk assessment, particular methods use other fuels besides fine forest fuels.
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ژورنال
عنوان ژورنال: International Journal of Wildland Fire
سال: 2023
ISSN: ['1448-5516', '1049-8001']
DOI: https://doi.org/10.1071/wf22127