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You are here : eLibrary : Ice Research and Engineering : 23rd Symposium USA (2016) : Sea Ice : Laboratory Work on Heat Transfer in Submerged Ice, Theory, Experimental Setup and Results
Laboratory Work on Heat Transfer in Submerged Ice, Theory, Experimental Setup and Results
Author : Chen, Xiaodong and Knut H°yland
A fresh ice and saline ice (-35oC) were both submerged into a fresh water bath (0.2oC), to study the heat transfer process under a transient condition. The temperature profile was measured by an NTC thermistor string while ice growth was monitored with a camera. The temperature dependent thermal properties lead to different results on ice growth and temperature change. The salt ice grew 2.6 cm (26%) compare to 1.6 cm on fresh ice (16%). On the other hand, there was a slight difference in temperature profiles. Finally, the oceanic flux was calculated from energy conservation equation, and showed that oceanic flux quickly dropped from 280-380 W/m2 and stabilized on about 90 W/m2 and 10 W/m2 for saline and fresh ice respectively. The brine migration reduced the bulk salinity, and may have caused an overestimation of the oceanic flux for the saline ice. Therefore, to obtain a reliable oceanic flux, it is necessary to consider salinity variation during the melting process.
File Size : 1,847,173 bytes
File Type : Adobe Acrobat Document
Chapter : Ice Research and Engineering
Category : 23rd Symposium USA (2016)
Article : Sea Ice
Date Published : 20/10/2016
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