scholarly journals Water and salt phase change in sodium sulfate soil based on differential scanning calorimetry

Author(s):  
Xusheng Wan ◽  
Changmao Zhong ◽  
Zhaohui Yang ◽  
Enxi Qiu ◽  
Mengfei Qu ◽  
...  
2018 ◽  
Vol 8 (1) ◽  
pp. 66 ◽  
Author(s):  
Stéphane Gibout ◽  
Erwin Franquet ◽  
Didier Haillot ◽  
Jean-Pierre Bédécarrats ◽  
Jean-Pierre Dumas

Volume 1 ◽  
2004 ◽  
Author(s):  
Adrian S. Sabau ◽  
Wallace D. Porter

Differential Scanning Calorimetry (DSC) measurements are routinely used to determine enthalpies of phase change, phase transition temperatures, glass transition temperatures, and heat capacities. In order to obtain data on the amount of phases during phase change, time-temperature lags, which are inherent to the measurement process, must be estimated through a computational analysis. An analytical model is proposed for the systematic error of the instrument. Numerical simulation results are compared against experimental data obtained at different heating and cooling rates.


2012 ◽  
Vol 204-208 ◽  
pp. 3998-4001
Author(s):  
Qi Song Shi

The ultrafine fibers based on the composites of polyethylene glycol(PEG) and polyvinylpyrrolidone(PVP) were prepared successfully via electrospinning as phase change materials. The thermal properties and morphology of the composite fibers were studied by differential scanning calorimetry(DSC) and scanning electron microscopy(SEM), respectively.


2001 ◽  
Vol 71 (3) ◽  
pp. 507-515
Author(s):  
Daniela Gheorghe ◽  
Ana Neacsu ◽  
Stefan Perisanu

A new value of the enthalpy of formation of cyclooctane (-156.2�1.2 kJ mol-1) based on heat of combustion measurements is reported. Its solid - liquid phase change was investigated by differential scanning calorimetry in both directions revealing an overcooling effect of over 23 K. Our enthalpy of formation of cyclooctane was used together with literature values of heats of hydrogenation of 8 carbon atoms cycloolefins to calculate the enthalpies of formation of the later. The strain energies of the investigated molecules were calculated and discussed.


2019 ◽  
Vol 161 ◽  
pp. 429-437 ◽  
Author(s):  
Pavlos K. Pandis ◽  
Stamatoula Papaioannou ◽  
Maria K. Koukou ◽  
Michalis Gr. Vrachopoulos ◽  
Vassilis N. Stathopoulos

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