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Analytical Models for the Systematic Errors of Differential Scanning Calorimetry Instruments

[+] Author Affiliations
Adrian S. Sabau, Wallace D. Porter

Oak Ridge National Laboratory, Oak Ridge, TN

Paper No. HT-FED2004-56745, pp. 525-530; 6 pages
doi:10.1115/HT-FED2004-56745
From:
  • ASME 2004 Heat Transfer/Fluids Engineering Summer Conference
  • Volume 1
  • Charlotte, North Carolina, USA, July 11–15, 2004
  • Conference Sponsors: Heat Transfer Division and Fluids Engineering Division
  • ISBN: 0-7918-4690-3 | eISBN: 0-7918-3740-8
  • Copyright © 2004 by ASME

abstract

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.

Copyright © 2004 by ASME

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