INFORMATION SYSTEMS AND LOGISTICS IN CIVIL ENGINEERING

Comparative study of the energy efficiency of available and newly developed materials and structures based on the finite-element resolution of 2d and 3d problems of heat conductivity

Vestnik MGSU 3/2013
  • Belostotskiy Aleksandr Mikhaylovich - Moscow State University of Civil Engineering (MGSU) Doctor of Technical Sciences, Professor, Moscow State University of Civil Engineering (MGSU), ; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Shcherbina Sergey Viktorovich - Moscow State University of Civil Engineering (MGSU) engineer, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 212-219

The authors performed a comparative analysis of the energy efficiency of existing and newly developed enclosure structures of buildings. Density and heat transfer rate integrals alongside certain lines are selected as energy efficiency parameters. Finite element modeling verified by ANSYS Mechanical code is chosen as the research tool.Quasi-two-dimensional and three-dimensional options of the problem were resolved by the authors. The three-dimensional problem was resolved for a typical corner room free from embrasures.The key findings of the study are as follows:1. The two-dimensional finite element model of the wall and the three-dimensional finite element model of the corner room are produced and verified. Existing and newly developed materials and wall designs are taken into consideration in respect of the stationary heat transfer problem.2. 10.5 % reduction of the heat transfer rate was identified using the two-dimensional model, if the hat is transferred through the wall having a new design.3. The pattern of heat transfer rates is preserved in respect of the threedimensional problem of new wall designs and materials; however, particular “spikes” appear in the joints.4. A rise in the overall energy efficiency of newly developed materials and wall designs is discovered in respect of the three-dimensional problem (7.7 % along the horizontal axis and 1.5 % along the vertical axis).

DOI: 10.22227/1997-0935.2013.3.212-219

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