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Thermal Conductivity of Room Temperature Deep Eutectic Solvents

Journal of Thermal Science 2021年第6期30卷 1960-1972页

作者： albayati noor KADHOM Mohammed ABDULLAH Ghassan SALIH Suhaib Department of Science College of Basic EducationUniversity of WasitWasit 52005Iraq Department of Environmental Science College of Energy and Environmental ScienceAl-Karkh University of ScienceBaghdad 31020Iraq Department of Chemical Engineering University of TikritSaladin 34001Iraq

As deep eutectic solvents(DESs)became a prevalent category of materials,reporting their physical and chemical properties turned to be *** this work,a database of the thermal conductivity of 39 DESs was experimentally investigated in a temperature range of 25℃to 60℃,since this property was not broadly reported *** the thermal conductivity is a significant approach to obtain the fluids'heat transfer coefficients,which are essential for fluid heat transfer applications and equipment *** selection of the reported DESs was based on their liquid phase status at room temperature and ***,the thermal conductivity was studied as a function of temperature and ***,the data were fit with the conventional equations to predict the thermal conductivity value at a certain *** highest R^(2) was selected to identify the best behavior with the common types of *** was found that the thermal conductivity reduced by raising the temperature,which was attributed to the enhancement that occurred in electrons'randomness and reduction in electrons'free ***,as the temperature rises up,the density decreases,and molecular distance *** contained choline chloride showed higher thermal conductivity stability than other *** an opposite scenario was noticed for glycerol and ethylene glycol DESs due to the possibility of generating water.

关键词： deep eutectic solvents thermal conductivity physical properties green solvents

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