DYNAMIC CHARACTERISTICS OF THE WALL STRUCTURE DURING THE HEAT TRANSFER PROCESS

Saša Kalinović, Jelena Đoković, Dejan Tanikić

DOI Number
https://doi.org/10.22190/FUWLEP2001027K
First page
027
Last page
037

Abstract


This paper deals with the impact of high-density thermal mass materials of the wall structure on the dynamic characteristics of a multi-layered building envelope during the heat transfer process. Since the final objective is to design the most energy-efficient building, i.e. a building with the lowest heating and cooling energy consumption, it is necessary to achieve good thermal performances of a multi-layered wall. In order to find the optimal wall structure solution with the highest energy-saving potential, different wall structures with different layer thicknesses were analyzed, along with walls of the same structure with different positions of individual thermo insulating layers within the wall. Based on the results presented in this paper, it can be concluded that at walls with similar structures and the same total thickness, but different layer thicknesses that make up the complete structure of the wall, there are differences in delaying external temperature changes on the wall. However, the position of the thermal insulation layer does not significantly affect temperature oscillation amplitude caused by external temperature change.


Keywords

thermal mass, specific wall mass, thermal absorption, periodic heat transfer, reduction factor, thermal inertia

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References


Evangelisti, L., et al., Experimental investigation of the influence of convective and radiative heat transfers on thermal transmittance measurement, International Communications in Heat and Mass Transfer, 78, (2016), pp. 214–223.

Martin, K., et al., Equivalent wall method for dynamic characterization of thermal bridges, Energy and Buildings, 55, (2012), pp. 704–7143.

Biddulpha, P., et al., Inferring the thermal resistance and effective thermal mass of a wall using frequent temperature and heat flux measurements, Energy and Buildings, 78, (2014), pp. 10–16.

Johra, H., Heiselberg, P., Influence of internal thermal mass on the indoor thermal dynamics and integration of phase change materials in furniture for building energy storage: A review, Renewable and Sustainable Energy Reviews, 69, (2017), pp. 19–32.

Ferrariand, S., Zanotto, V., Building Energy Performance Assessment in Southern Europe, Springer, 2016.

M. Ljubenović, et al., The Impact of the Wall Structure on its Dynamic Characteristics, Proceedings, 18th Symposium on Thermal Science and Engineering of Serbia - SIMTERM 2017, Editors: Mirjana Laković Paunović i Mladen Stojiljković, Sokobanja, Serbia, 2017, pp 87–94.

The Rulebook on Energy Efficiency of Buildings, Official Gazette of the Republic of Serbia No. 61/2011.

Li, Z., et al., InSAR analysis of surface deformation over permafrost to estimate active layer thickness based on one-dimensional heat transfer model of soils, Scientific Reports, 5, 15542; doi:10.1038/srep15542, (2015).

G. Margani, (2010), Murature massive e comfort sostenibile in clima mediterraneo, http://www.poroton.it/user/articoli/n68/murature-massive-comfort/murature-massive-comfort.aspx.

Kosssecka, E., Kosny, J., Equivalent wall as a dynamic model of a complex thermal structure, Journal of Building Physics, 20, (1997), pp. 249–268.

Standard EN ISO 13786.




DOI: https://doi.org/10.22190/FUWLEP2001027K

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