Open AccessDETERMINATION OF THE COEFFICIENT OF HEAT TRANSFER DURING COOLING OF SILVER THERMO PROBES, TAKING INTO ACCOUNT THE EFFECTS OF TEMPERATURE-TIME DELAY
Author(s) -
E. N. Zotov,
O. V. Rasumtseva,
L. M. Protsenko
Publication year - 2017
Publication title -
promyšlennaâ teplotehnika
Language(s) - English
Resource type - Journals
ISSN - 0204-3602
DOI - 10.31472/ihe.5.2017.07
Subject(s) - heat transfer coefficient , heat transfer , thermodynamics , materials science , heat flux , mechanics , sigma heat , field (mathematics) , critical heat flux , physics , mathematics , pure mathematics
Existing methods for determining the characteristics of the nonstationary heat transfer process (temperature field, heat transfer coefficient, heat flux density, surface temperature) are considered and analyzed when cooling silver spherical and cylindrical thermo-probes. New analytical solutions are proposed using a special program IQLab, which increase the accuracy of calculations when testing the cooling capacity of various liquids. The results of the calculations are compared with the experimental data.