reversing heat flow

https://doi.org/10.1351/goldbook.12797
In modulated-temperature DSC the heat-capacity component of the total heat flow that is in-phase with the temperature modulation.
Notes:
  1. The reversing-heat-flow component contains the changes in the heat capacity, \(C_{p}\), of the specimen, in particular during the glass transition.
  2. The term "reversing" must not be confused with "reversible".
Source:
PAC, 2013, 85, 1017. (Glossary of terms relating to thermal and thermomechanical properties of polymers (IUPAC Recommendations 2013)) on page 1037 [Terms] [Paper]