An updated estimate of the total heat transfer coefficient of thermos cars at the design stage
https://doi.org/10.46973/0201-727X_2026_1_82
Abstract
The objective of this study is to develop and test a refined methodology for estimating the total heat transfer coefficient of isothermal rolling stock. This methodology takes into account the main features of enclosing structures that affect the thermal characteristics of thermos cars, which include: the design and sealing method of the doorway and door, the connection of walls with the roof and frame, the connection between the side and end wall, structural thermal bridges, a water lock (drain device).The calculation of the heat transfer coefficient of the thermos car was carried out according to analytical dependencies and a refined methodology. The results were verified using full-scale testing data and demonstrated a high degree of agreement with the results of full-scale experiments, with a discrepancy of no more than 5%.The updated methodology can be used in carrying out research and development work in the creation and improvement of structures of insulated rolling stock, including using new manufacturing technologies and materials.
About the Authors
S. V. Burikov
Emperor Alexander I St. Petersburg State Transport University (PGUPS)
Russian Federation
Russian Federation
Burikov Sergey Vitalievich, Chair “Wagons and Wagon Facilities”, Postgraduate Student
L. V. Tsyganskaya
Joint-Stock Company «Scientific and Implementation Center “Vagony”» (JSC «NVC “Vagony”»), Emperor Alexander I St. Petersburg State Transport University (PGUPS)
Russian Federation
Russian Federation
Tsyganskaya Lyudmila Valerievna, Chair “Wagons and Wagon Facilities”, Candidate of Engineering Sciences, Associate Professor, Deputy General Director – Chief Designer of NIB
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Review
For citations:
Burikov S.V., Tsyganskaya L.V. An updated estimate of the total heat transfer coefficient of thermos cars at the design stage. Vestnik Rostovskogo Gosudarstvennogo Universiteta Putej Soobshcheniya. 2026;(1):82-89. (In Russ.) https://doi.org/10.46973/0201-727X_2026_1_82
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