Investigation of the Thermal Diffusivity of Water Applying Temperature Oscillation
Journal Title: Problemy Mechatroniki. Uzbrojenie, lotnictwo, inżynieria bezpieczeństwa - Year 2012, Vol 3, Issue 3
Abstract
The modified periodic temperature oscillation i.e. Ångström technique at scanning mode operation has been applied to perform continuous measurements of the thermal diffusivity of water. The investigations has been done at cooling from 12,0C to -13,6C. The thermal diffusivity has been calculated independently from two transcendental relations based on the measured amplitude attenuation and the measured phase shift of the temperature oscillation respectively. The experiments have proved performance of the applied method for systematic studies of thermophysical properties of ice accretions. Unique results of the thermal diffusivity of water supercooled to about -5C have been obtained also.
Authors and Affiliations
Andrzej PANAS, Robert SZCZEPANIAK, Mirosław NOWAKOWSKI, Jaromir PANAS
Keywords
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