Archivio Istituzionale della RicercaA new method to measure the thermal diffusivity of liquids is presented. It requires determination of the time dependence of the thermal expansion of the liquid when it is subjected to a heat source at the top of the cell containing the liquid. The high accuracy of the method (about 3%) is due to an essential reduction of convective currents and also to the absence of temperature detectors, which generally introduce unwanted perturbations on the thermal Field.
A dilatometric method to measure the thermal diffusivity of nonmetallic liquids / M., Omini; Sparavigna, Amelia Carolina; Strigazzi, Alfredo. - In: INTERNATIONAL JOURNAL OF THERMOPHYSICS. - ISSN 0195-928X. - 15:2(1994), pp. 215-227. [10.1007/BF01441583]
A dilatometric method to measure the thermal diffusivity of nonmetallic liquids
SPARAVIGNA, Amelia Carolina;STRIGAZZI, Alfredo
1994
Abstract
A new method to measure the thermal diffusivity of liquids is presented. It requires determination of the time dependence of the thermal expansion of the liquid when it is subjected to a heat source at the top of the cell containing the liquid. The high accuracy of the method (about 3%) is due to an essential reduction of convective currents and also to the absence of temperature detectors, which generally introduce unwanted perturbations on the thermal Field.
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https://hdl.handle.net/11583/1406009
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