Sensitivity Study on the Parameters of a Hygrothermal Transfer Model of Air, Heat and Mass Transfer

Abstract:

The energy performance of buildings represents a major challenge in terms of sustainable development. The buildings and buildings construction sectors combined are responsible for over one-third of global final energy consumption and nearly 40% of total direct and indirect CO₂ emissions. In order to reduce the energy consumption of buildings and their harmful impact on the environment, special attention has been paid in recent years to the use of bio-based materials. Several works have been carried out in the last decades in order to model the coupled heat, air and moisture transfers in the building envelope but the difficulties lies in the identification of numerous parameters that the HAM proposed models use. In the present paper, a sensitivity study regarding the HAM parameters is implemented in order to apprehend the most determining parameters during the transfer processes. A reduced model based on these parameters is then determined.

• Periodical: Construction Technologies and Architecture (Volume 1)
• Pages: 860-864
• DOI: https://doi.org/10.4028/www.scientific.net/CTA.1.860
• Online since: January 2022
• Authors: Salah Ouldboukhitine*, Sofiane Amziane, Maroua Benkhaled
• Keywords: Building Energy Performance, Coupled Heat and Mass Transfer Hemp Concrete, Finite Element

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