THERMAL SCIENCE

International Scientific Journal

ANALYTICAL AND EXPERIMENTAL DETERMINATION OF THE TEMPERATURE FIELD ON THE SURFACE OF WALL HEATING PANELS

ABSTRACT
This paper presents experimental verification of the accuracy and acceptability of Faxen-Rydberg-Huber analytical expression for determining thermal characteristics of the heating panels. The verification of accuracy of the Faxen-Rydberg-Huber expression, which describes the two-dimensional temperature field in the wall with series of embedded heated pipes having uniform temperature, was performed by comparing the temperatures on the surface of three types of heating wall panels, differing in structure and geometric characteristics. The analysis of results has shown high accuracy of Faxen-Rydberg-Huber expression in describing the temperature field. Also, it was noted that small changes in heating fluid temperature, occurring along the pipe in the heated panel, have a negligible influence on the accuracy of prediction by the expression. This confirmed that the Faxen-Rydberg-Huber expression can be used to describe the temperature field in the wall heating panels. At the same time, this expression has proven to be extremely sensitive primarily to thermophysical characteristics of the panel layers, as well as to the geometric parameters of the panels.
KEYWORDS
PAPER SUBMITTED: 2013-02-11
PAPER REVISED: 2014-04-07
PAPER ACCEPTED: 2014-06-13
PUBLISHED ONLINE: 2014-06-21
DOI REFERENCE: https://doi.org/10.2298/TSCI130211068T
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2015, VOLUME 19, ISSUE 2, PAGES [497 - 507]
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© 2020 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