THERMAL SCIENCE

International Scientific Journal

Boris G. Pokusaev

,

Andrey Moshin

,

Dmitry A. Nekrasov

,

Dmitry Khramtsov

,

Nicolay Zakharov

,

Raphael Khairov

HEAT TRANSFER IN INHOMOGENEOUS DISPERSED SYSTEMS BASED ON GRAPHENE OXIDE HYDROGELS

ABSTRACT
Based on the optical holography method, studies of the occurrence and development of convective flows in hydrogels of various concentrations with the addition of graphene oxide in relation to 3-D-bioprinting technology have been performed. For quantitative measurement of temperature fields, the optical holography method was used in combination with the gradient thermometry method, based on the dependence of the refractive index on the properties of hydrogel systems modified with graphene oxide with different concentrations and temperatures. Under conditions of changes in the thermophysical properties of hydrogels, as well as the magnitude of the supplied heat flux, the features of heating the wall area are studied in order to determine the coefficients of thermal conductivity and heat capacity, as well as the nature of the formation of convective flows near the wall heated from below.
KEYWORDS
hydrogels, 3-D bioprinting, thermophysical properties of hydrogels, graphene oxide, gradient thermometry
PAPER SUBMITTED: 2024-01-24
PAPER REVISED: 2024-04-20
PAPER ACCEPTED: 2024-05-03
PUBLISHED ONLINE: 2024-05-18
DOI REFERENCE: https://doi.org/10.2298/TSCI240124121P
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2024, VOLUME 28, ISSUE Issue 6, PAGES [4579 - 4588]
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Heat transfer in inhomogeneous dispersed systems based on graphene oxide hydrogels

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, 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