Electronic Resource
[S.l.]
:
American Institute of Physics (AIP)
Review of Scientific Instruments
61 (1990), S. 1289-1293
ISSN:
1089-7623
Source:
AIP Digital Archive
Topics:
Physics
,
Electrical Engineering, Measurement and Control Technology
Notes:
A drop calorimetric apparatus is described. The receiving calorimeter is isoperibolic and quasi-isodiabatic (an almost constant heat flow is maintained during the measurement by means of a fixed temperature difference ΔT between the calorimeter and the surrounding metallic block). The incremental ΔH of a sample dropping from the furnace into the calorimeter (at room temperature) is obtained by ΔH=ΔE1+ΔE2 where the energy ΔE1 is evaluated electrically, and ΔE2 (which should be zero if the calorimeter were perfectly isodiabatic) is computed by integration of the small ΔT perturbations. ΔE2 is about 1% of the total energy involved. Results of preliminary tests and examples of applications in metallurgical thermochemistry are reported.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1141175
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