Definition of Reduced Thermal Resistance of a Fragment of the Non-Uniform Enclosing Structure in the Climatic Chamber

It is known that to determine the value of reduced resistance to heat transfer or thermal resistance of a non-uniform enclosing structure with a significant discreteness of the temperature field with the help of gradient heat meters is almost impossible. It is necessary to search for other approaches to this task. An analysis of different methods for defining reduced resistance of non-uniform enclosing structures to heat transfer is made and their shortcomings are noted. It is recommended to fix aluminum sheets to the surface of a fragment of the enclosing structure investigated in the climatic chamber. Numerical calculations using a program of calculation of three-dimensional temperature fields show how it is possible to practically convert a spatial temperature field on the fragment surface into a one-dimensional field by the selection of thickness of sheets that will improve the results of studies with the use of gradient heat meters.

N.D. DANILOV, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
P.A. FEDOTOV, Engineer,
I.A. DOKTOROV, Candidate of Sciences (Engineering)

M.K. Ammosov North-Eastern Federal University (58, Belinskogo Street, Yakutsk, 677000, Republic of Sakha (Yakutia)

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