Ignoring heat inertia impairs accuracy of determination of activation energy in thermal analysis

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F19%3A43956867" target="_blank" >RIV/49777513:23640/19:43956867 - isvavai.cz</a>
Result on the web
<a href="http://hdl.handle.net/11025/36317" target="_blank" >http://hdl.handle.net/11025/36317</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/kin.21230" target="_blank" >10.1002/kin.21230</a>

Result language
angličtina
Original language name
Ignoring heat inertia impairs accuracy of determination of activation energy in thermal analysis
Original language description
This paper critically analyzes the traditional method of kinetic determination of activation energy by sectioning the recorded differential thermal analysis peak area. This procedure is incorrect because it misses the impact of thermal inertia, which changes the shape of the peak's base line from straight to s-shape. This effect has been known since the Newton cooling law, but the resulting errors persist to be interwoven into all the kinetic methods based on nonisothermal thermoanalytical measurements. Relating to calorimetry, it is necessary here because heat inertia has become a standard part of heat determination via using the Tian historical equation. The role and impact of heat inertia is discussed and analyzed in detail.
Czech name
—
Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20303 - Thermodynamics

Project
<a href="/en/project/LO1402" target="_blank" >LO1402: CENTEM+</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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