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DETERMINATION OF CONVECTIVE HEAT TRANSFER PARAMETERS BY THE CALORIMETRIC METHOD OF A THIN WALL

ABSTRACT
The paper proposes a procedure of experimental data processing by the thin wall method for the diagnostics of stationary gas-flows. The procedure is based on solving an inverse convective heat transfer problem. It does not use smoothing and numerical differentiation of experimental data, and is resistant to measurement errors. Sensitivity coefficients are analyzed to find the most informative times for the determination of convective heat transfer parameters with the least influence of the measurement error. The numerical examples given show the effectiveness of the calculation procedure for the heat transfer coefficient and the gas-flow temperature determined from discrete measurements of the sensor temperature.
KEYWORDS
PAPER SUBMITTED: 2018-10-09
PAPER REVISED: 2018-10-26
PAPER ACCEPTED: 2018-12-03
PUBLISHED ONLINE: 2019-05-05
DOI REFERENCE: https://doi.org/10.2298/TSCI19S2497Z
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2019, VOLUME 23, ISSUE Supplement 2, PAGES [S497 - S504]
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© 2019 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence