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- Title
Simultaneous estimation of thermal conductivity and volumetric heat capacity of viscous liquids with the line heat source probe via Bayesian inference.
- Authors
LAMIEN, BERNARD; BARRETO ORLANDE, HELCIO RANGEL
- Abstract
The transient line heat source probe technique is widely used for the measurement of the thermal conductivity of viscous liquids and granular materials. In this work. we extend such technique for the simultaneous estimation of the thermal conductivity and volumetric heat capacity. A mathematical model that takes into account the probe and the surrounding material is used for the inverse analysis. Since several parameters appearing in the formulation are not deterministicaly known, including the thermal properties of the probe, a technique within the Bayesian framework is used for the solution of the inverse problem. Experimental temperature measurements taken with a sensor located inside the probe are used in the inverse analysis. Results are presented for glycerin and ethylene glycol.
- Publication
High Temperatures - High Pressures, 2013, Vol 42, Issue 3, p151
- ISSN
0018-1544
- Publication type
Academic Journal