Thermal conductivity measurement of liquids by means of a microcalorimeter

Autor:	Ricardo Páramo, F. Sobron, Benigno Barbés, Eduardo Blanco, Carlos Casanova
Rok vydání:	2010
Předmět:	Convection Chemistry Analytical chemistry Thermodynamics Condensed Matter Physics Thermal conduction Calorimeter Physics::Fluid Dynamics Thermal conductivity measurement Nanofluid Thermal conductivity Thermal Physical and Theoretical Chemistry Electrical conductor
Zdroj:	Journal of Thermal Analysis and Calorimetry. 104:805-812
ISSN:	1572-8943 1388-6150
DOI:	10.1007/s10973-010-1169-y
Popis:	A study has been carried out of calorimetric cells based on the coaxial cylinder method suitable for the thermal conductivity measurements in a C80D micro-calorimeter from Setaram (France). On the hypothesis of a pure conductive process, it has been possible to obtain the equation expressing the thermal conductivity k of a liquid sample in function of the heat flow measured by the calorimeter, and the relative thermal conductivity uncertainty has been analysed. To justify the hypothesis of practical absence of convection and negligible temperature differences during experimentation, a CFD (Computational Fluid Dynamics) study has been performed. With a view to testing our equipment and calibration method, the thermal conductivities of some pure liquids (toluene, n-decane) and systems (water + ethanol and nanofluid water/Al2O3), which cover a wide range, have been measured.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::fa5230415859d9c90764af5f370f8192 https://doi.org/10.1007/s10973-010-1169-y Zobrazit plný text záznamu Full text from SpringerLink