Autors: Ivanov, M. P., Mijorski S.
Title: Development of thermal bridge numerical model, based on conjugate heat transfer and indoor and outdoor environment parameters
Keywords: Thermal Bridge, Conjugate Heat Transfer, Building Envelope Analyses

Abstract: The presented study reveals the development of a 3D numerical model for thermal bridge assessment, based on conjugate heat transfer and CFD methods. With the developed model, thermal simulations are performed, in order to analyze the interaction between different ambient conditions and material properties. The results show that the wall boundary layer profiles are depended on the attached air flow velocity magnitude and implemented wall roughness. The parametric analysis, of the varying ambient air temperatures, confirm the linear dependence to the internal wall surface temperatures. The demonstrated correlations, in regard of the attached air flow velocity magnitude and wall roughness heights, are non-linear. The most characteristic result, achieved in the simulation study, is the impact of the wall roughness, over the internal wall temperature. The increase of the roughness leads to significant increase of the internal wall temperature.

References

    Issue

    Proc. “9th Int. Conf. on Thermal Equipment, Renewable Energy and Rural Development - TE-RE-RD 2020”, Web of Conf., 2020, Romania, DOI: https://doi.org/10.1051/e3sconf/202018004011

    Вид: публикация в международен форум, публикация в реферирано издание, индексирана в Scopus и Web of Science