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On the use of a reduced model for the simulation of melting of solutions in DSC experiments

Gibout, S., Franquet, E., Marechal, W. and Dumas, J.
2013
Thermochimica Acta, Volume 566, 20 August 2013, Pages 118-123
Differential scanning calorimetry (DSC); Phase change material (PCM); Melting; Model; Experiment; Thermogram

Gibout, S., Franquet, E., Marechal, W. and Dumas, J., (2013), "On the use of a reduced model for the simulation of melting of solutions in DSC experiments", Thermochimica Acta, Volume 566, 20 August 2013, Pages 118-123.
Abstract

It is known that when studying the fusion of phase change materials (PCM) in differential scanning calorimetry (DSC) experiments, the geometry of the samples is not well known. Yet, some studies show that a numerical model, needing obviously to clearly define the shape of the sample, may reproduce the experimental DSC curve. In particular, such methods are currently applied to identification process based on inversion methods applied to the thermodynamical parameters governing the numerical model. Consequently, it means that if several numerical models are able to reproduce the thermal behavior of a PCM undergoing phase transition, the best one is the simplest one, that is to say the one which is the fastest to solve.

Recently, we have thus shown that for pure substances PCM, a reduced model based on a spherical assumption for the shape of the sample leads to similar DSC curves that a more general model based on cylindrical shape.

Clearly, if this result may be extended to other kinds of PCM, this will promote the capability of this method to be used in inversion process involved by identification process. The aim of the present paper is therefore to further study this method by considering non-pure materials, i.e. binary solution in the present case.

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Author Information and Other Publications Notes
Gibout, S.
  1. Comparison of different modelings of pure substances during melting in a DSC experiment
  2. Interpretation of calorimetry experiments to characterise phase change materials
  3. Inverse method for the identification of the enthalpy of phase change materials from calorimetry experiments
  4. Model for the DSC thermograms of the melting of ideal binary solutions  
Franquet, E.
  1. Comparison of different modelings of pure substances during melting in a DSC experiment
  2. Interpretation of calorimetry experiments to characterise phase change materials
  3. Inverse method for the identification of the enthalpy of phase change materials from calorimetry experiments
  4. Model for the DSC thermograms of the melting of ideal binary solutions  
Marechal, W.
     
Dumas, J.
  1. Interpretation of calorimetry experiments to characterise phase change materials
  2. Inverse method for the identification of the enthalpy of phase change materials from calorimetry experiments
  3. Model for the DSC thermograms of the melting of ideal binary solutions
  4. Modeling phase change materials behavior in building applications: Comments on material characterization and model validation
  5. Theoretical curves in thermal analysis for the melting of binaries showing solid solutions  


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