Thermal conductivities of water-agar gels were determined at concentrations with mass fractions between w = 0.001 and w = 0.1 and temperatures from (278.15 to 323.15) K by means of a specifically designed probe system based on the line heat source principle. The thermal conductivity probe was calibrated and validated using glycerin (with mass fraction w = 0.99), glycol (with mass fraction w = 0.99), and ultra pure water (with resistivity 18.4 MΩ 3 cm, electric conductivity 0.055 μS 3 cm -1 ). Their measured and recommended values of thermal conductivity were in good agreement. The experimental data of thermal conductivity values of water-agar gels were sensitive to both concentration and temperature. The thermal conductivity of water-agar gels decreased with increasing concentration, while it increased as temperature increased. Predictive regression models were proposed to give a good fit for thermal conductivity with concentration and temperature.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.