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Valentina Tusnina


In the practice of design and construction, methods of numerical calculations using modern software package are widely used, which make it possible to effectively solve the problems of designing, erecting and operating buildings and structures of various functional purposes. A comparative analysis of numerical, theoretical and experimental studies in the field of building structures, buildings and structures shows that accurate calculation methods provide reliable data on the subject of research. This article presents the results of numerical studies of the thermal efficiency of inhomogeneous vertical fences on the example of several options for constructive solutions for the outer walls of a building. The studies were carried out using the TEPL software package, developed for calculating three-dimensional temperature fields based on the control volume method. The results of the analysis of the temperature distribution on the heat exchange surfaces are presented, which made it possible to determine the zones of excessive heat losses in the structures under study. Significant heat losses on the slopes of window openings are revealed, which should be taken into account when calculating the reduced resistance to heat transfer of the fence. The TEPL software package allows not only to correctly estimate heat losses, but also automatically obtain the value of the reduced heat transfer resistance of the fence structure, taking into account all the features of its design solution.


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Tusnina, V. (2023). NUMERICAL ANALYSIS OF THERMAL EFFICIENCY OF EXTERNAL WALLS WITH HEAT-CONDUCTING INCLUSIONS. International Journal for Computational Civil and Structural Engineering, 19(1), 155–167.


SNiP 23-02-2003 Teplovaya zashchita zdaniy [BNR 23-02-2003 Thermal protection of buildings]. Moskva: Gosstroy Rossii, 2003. (In Russian).

Abass, F., Ismail, L.H., Wahab, I.A., Elgadi, A.A. Development of a Model for OTTV and RTTV based on BIMVPL to Optimize the Envelope Thermal Performance. IOP Conference Series: Materials Science and Engineering. 2020. 713(1), 012009. DOI:

Schukina, T., Kurasov, I., Drapaliuk, D., Popov, P. Improving the energy efficiency of buildings based on the use of integrated solar wall panels. E3S Web of Conferences. 2021. 244, 05009. DOI:

M’ziane, M.C., Grine, A., Younsi, Z., Touhami, M.S.K. Modelling and Numerical Simulation of a Passive Wall Incorporating a Phase Change Material. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences. 2021.79(1). Pp. 169-181. DOI:

Stonkuvienė, A., Bliūdžius, R., Burlingis, A., Ramanauskas, J. The impact of connector's thermal and geometrical characteristics on the energy performance of facade systems. Journal of Building Engineering. 2021. 35, 102085. DOI:

Zhang, F., Ju, Y., Santibanez Gonzalez, E.D.R., (...), Dong, P., Giannakis, M. A new framework to select energy-efficient retrofit schemes of external walls: A case study. Journal of Cleaner Production. 2021. 289, 125718. DOI:

Karabulut K., Buyruk E., Fertelli A. Numerical investigation of the effect of insulation on heat transfer of thermal bridges with different types, Thermal Science. 2016. 20 (1). Pp. 185-195. DOI:

Karabulut K., Buyruk E., Fertelli A. Numerical investigation of heat transfer for thermal bridges taking into consideration location of thermal insulation with different geometries, Strojarstvo, 2009. 51 (5), 431-439.

Li, H., Zhong, K., Yu, J., Kang, Y., (John) Zhai, Z. Solar energy absorption effect of buildings in hot summer and cold winter climate zone, China. 2020. Solar Energy 198, pp. 519-528. DOI:

Yu, J., Leng, K., Ye, H., (...), Yang, Q., Gang, W. Study on thermal insulation characteristics and optimized design of pipe-embedded ventilation roof with outer-layer shape-stabilized PCM in different climate zones. 2020. Renewable Energy 147, pp. 1609-1622. DOI:

Al-Sanea, Sami A. , Zedan, M.F. Effect of thermal bridges on transmission loads and thermal resistance of building walls under dynamic conditions. 2012. Applied Energy, Elsevier, vol. 98(C), pp. 584-593. DOI:

Shaik, S., Nagaraju, S., Rizvan, S.M., Gorantla, K.K. Optimizing Vertical Air Gap Location Inside the Wall for Energy Efficient Building Enclosure Design Based on Unsteady Heat Transfer Characteristics. 2020. Advances in Intelligent Systems and Computing 1048, pp. 1003-1009. DOI:

Najjar, M.K., Rosa, A.C., Hammad, A.W.A., (...), Tam, V.W.Y., Haddad, A. A regression-based framework to examine thermal loads of buildings. 2021. Journal of Cleaner Production 292, 126021. DOI:

Wang, G. Study on effect of the external wall and window's heat load ratio to the total heat load on the indoor heat comfortability. 2013. Applied Mechanics and Materials 353-354, pp.3005-3008. DOI:

Dino, I.G., Sari, A.E., Iseri, O.K., (...), Kalkan, S., Alatan, A.A. Image-based construction of building energy models using computer vision. 2020. Automation in Construction 116, 103231. DOI:

Švajlenka, J., Kozlovská, M., Vranay, F., Pošiváková, T., Jámborová, M. Comparison of laboratory and computational models of selected thermal-technical properties of constructions systems based on wood. 2020. Energies 13(12), 3127. DOI:

Tusnin A.R., Tusnina O.A. Programmnyy kompleks dlya teplotekhnicheskogo rascheta stroitel'nykh konstruktsiy [Software complex for heat engineering calculation of building structures]. Promyshlennoye i grazhdanskoye stroitel'stvo. 2014. No. 4. Pp. 76-79. (In Russian)

S. V. Patankar Numerical heat transfer and fluid flow. New York. 1980. 197 p.

Tusnina V. M., Fayzov D. Sh. K voprosu teplotekhnicheskogo rascheta neodnorodnykh ograzhdayushchikh konstruktsiy zdaniy [To the Issue of Thermo-technical Calculation of Non-uniform Enclosing Structures of Buildings]. Promyshlennoe i grazhdanskoe stroitel'stvo. 2017. No. 4. Pp. 19–24. (In Russian).

Tekhnicheskiy otchet «Vypolneniye naturnykh obsledovaniy i modelirovaniya metodom konechnykh elementov s tsel'yu opredeleniya veroyatnosti promerzaniya ograzhdayushchikh konstruktsiy zhilogo kompleksa, raspolozhennogo po adresu: g. Moskva, VAO, Tyumenskiy pr., vladeniye 3-5» [Technical report "Performance of field surveys and modeling by the finite element method in order to determine the probability of freezing of the enclosing structures of a residential complex located at the address: Moscow, VAO, Tyumensky pr., possession 3-5"]. NIU MGSU, Moskva, 2020. 46 p. (In Russian).

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