Development of an algorithm for determining the heat transfer coefficient of the body of an isothermal vehicle based on the results of analysis of the heat exchange processes occurring in it
https://doi.org/10.21780/2223-9731-2017-76-5-306-311
Abstract
The article analyzes the heat exchange processes the thermal imaging method using a thermal imaging device. An occurring in the body of an isothermal vehicle when determining algorithm for determining the heat transfer coefficient is proposed, the heat transfer coefficient K by the internal heating method. which makes it possible to calculate its value with an accuracy not The differences are shown in the values of the heat transfer coef-exceeding 5 %, which is regulated by a number of international ficients obtained by the equilibrium internal heating method and normative documents, while reducing the duration of the experiment by at least 6 times. The study gives comparative experimental data and results of calculating the unknown values of K for bodies of isothermal vehicles obtained by the equilibrium method and an express method based on the algorithm described in the article. It is shown that the use of the algorithm for calculating the heat transfer coefficient of the body of an isothermal vehicle will not only increase the productivity of testing stations, but will also lead to the organization of an electronic passport for the thermotechnical state for each body of an isothermal vehicle, the control of which will enable timely diagnosing the thermo-technical condition of the bodies of isothermal vehicles, providing energy-optimal operating modes of energy equipment and, hence, increasing its resource.
About the Authors
A. A. Golubin
Limited Liability Company “Information Security Center” (LLC “CBI”)
Russian Federation
Russian Federation
S. N. Naumenko
Joint Stock Company “Railway Research Institute” (JSC “VNIIZhT”)
Russian Federation
Russian Federation
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Review
For citations:
Golubin A.A., Naumenko S.N. Development of an algorithm for determining the heat transfer coefficient of the body of an isothermal vehicle based on the results of analysis of the heat exchange processes occurring in it. RUSSIAN RAILWAY SCIENCE JOURNAL. 2017;76(5):306-311. (In Russ.) https://doi.org/10.21780/2223-9731-2017-76-5-306-311
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