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Title: New approach to Tian's equation applied to heat conduction and liquid injection calorimeters
Authors: Jesús, Ch
Socorro, F. 
De Rivera, M. Rodríguez 
UNESCO Clasification: 22 Física
2204 Física de fluidos
Keywords: Calorimetric model
Excess molar enthalpies
Flow microcalorimeter
Isothermal titration calorimeter
Partial molar enthalpies
Issue Date: 2012
Publisher: 1388-6150
Journal: Journal of Thermal Analysis and Calorimetry 
Abstract: In the calorimeters used for the determination of thermodynamical properties of liquid environments, the mixture takes place when injecting liquid in the mixture zone, this injection incorporates an additional calorific power that is a function of the volumetric heat capacity of the injected liquid and the injection flow. In this article, it is rewritten Tian’s equation including this additional power to relate correctly the experimental output to the mixture enthalpy. It is applied Tian’s equation, once it has been corrected, to two types of calorimeters: flow-microcalorimeters and isothermal titration calorimeters. In this second case, it has been taken into account the classical operating mode (titration) and the continuous liquid injection mode. Tian’s equation, completed with all the energetic terms additional to the mixture process, is of great interest for the scientific and academic community because it allows to explain, in a simple and effective way, the operation of these instruments.
ISSN: 1388-6150
DOI: 10.1007/s10973-011-2117-1
Source: Journal of Thermal Analysis and Calorimetry [ISSN 1388-6150], v. 110, p. 1523-1532
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