NDLI: Preliminary analysis of the influence of environmental boundary conditions on convective heat transfer coefficients

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Preliminary analysis of the influence of environmental boundary conditions on convective heat transfer coefficients

Content Provider	Scilit
Author	Evangelisti, Luca Guattari, Claudia de Rubeis, Tullio
Copyright Year	2021
Description	Journal: Journal of Physics: Conference Series In this contribution, a hot box apparatus was used to investigate convective heat transfers through an experimental setup composed of a heat-flow sensor, air and surface temperature probes installed on the wall tested in the hot box and a hot-wire anemometer. The air near the wall was indirectly moved by means of a forced convection system through which the air velocity can be modified to simulate different environmental conditions. The hot box apparatus was used in order to investigate the influence of the air velocity on internal convective heat transfer coefficients (hc), under natural/mixed convection conditions. The Standard ISO 6946 suggests a typical internal convective heat transfer coefficient equal to 2.5 $W/m^{2}$K when horizontal heat fluxes occur. No detailed information about this value are reported in the Standard. So, the final aim of this study is to assess the applicability of the internal convective heat transfer coefficient value proposed by ISO 6946 under different air velocity values, quantifying how hc varies as air velocity changes.
Related Links	https://iopscience.iop.org/article/10.1088/1742-6596/1868/1/012024/pdf
ISSN	17426588
e-ISSN	17426596
DOI	10.1088/1742-6596/1868/1/012024
Journal	Journal of Physics: Conference Series
Issue Number	1
Volume Number	1868
Language	English
Publisher	IOP Publishing
Publisher Date	2021-04-01
Access Restriction	Open
Subject Keyword	Journal: Journal of Physics: Conference Series Heat Transfer Coefficient Convective Heat Transfer
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy

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