Conduction Calorimeters Heat Transmission Systems with Uncertainties

Autor: Torra, V., Tachoire, H.
Zdroj: Journal of Thermal Analysis and Calorimetry; June 1998, Vol. 52 Issue: 3 p663-681, 19p
Abstrakt: A critical reading of early papers on heat flux or conduction calorimetry (1920-1965) reveals the original kinetic aims of the developed instrumentation and the progressive appearance of the intrinsic difficulties. An analysis of current publications demonstrates biased application/results relating to equivalent problems. Modelling of the systems by the RC analogy of heat transfer equations establishes the problems connected with the structure of the apparatus and also the experimental conditions to be fulfilled. Analysis of the equations highlights several possibilities that are used in part today. For instance, the reduction of noise and drift on the calorimeter output by a software approach and the conditions to be attained with crucibles for increased accuracy.
Databáze: Supplemental Index
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