Paper Conference

Proceedings of Building Simulation 2017: 15th Conference of IBPSA


Numerical Investigation of the Hygrothermal Behaviour of a Hemp-Concrete Room: Hysteresis Effect of the Sorption Isotherm and its Temperature Dependency

Georges Costantine1, Chadi Maalouf1, Elias Kinab2, Guillaume Polidori1
1Thermomechanical Laboratory LTM, GRESPI, SFR Condorcet FR CNRS 3417, University of Reims-Champagne-Ardenne, 51687, Reims, France
2Lebanese University, Faculty of Engineering, Section II, Roumieh, Lebanon

Abstract: Building sector energy consumption is growing with the world’s development and its occupants’ wellbeing requirements. One of the solutions to reduce its energy costs is the use of bio-based materials as thermal insulation materials, recommended for their low environmental impacts. In this context, hemp concrete became very popular in the field of constructions. However, rare are the studies about the modelling of hemp concrete hygrothermal behaviour at the room scale, which presents the purpose of this work. The effects of hysteresis and temperature dependency of sorption isotherms are investigated in a numerical model of a hemp concrete wall coupled to a room and taking into account different ventilation strategies.
Pages: 2735 - 2744