Sensitivity analysis of transient heat and moisture transfer in a bio-based date palm concrete wall

Hygrothermal mathematical models are commonly used to describe heat and moisture transfer in porous bio-based building construction materials. This allows evaluate their thermal insulation capacity, as well ability regulate external climatic conditions ensure indoor comfort for inhabitants. In this paper, a sensitivity analysis is performed on Kunzel's model, while it applied simulate the hygrothermal behavior of wall structure made new material (cement composite including date palm fibers). first part, effects finite variations properties/boundary model's outcome investigated. second step, specific modes neglected order study influence numerical predictions. The results parametric show that special attention should be paid few parameters (heat capacity density transfer, sorption isotherm water vapor resistance factors transfer) at expense others. Uncertainties these influent may result large error accumulation, especially when modeling process. Furthermore, initial boundary sensors position appear possible sources discrepancies calculated RH profiles. Finally, pure conduction model found provide good estimation temperature profiles compared full whereas liquid must always taken into account accurate predictions through concrete wall.