Ångström methods applied to simultaneous measurements of thermal diffusivity and heat transfer coefficients: Part 1, theory

We present a method for simultaneous measurement of thermal diffusivity and local heat transfer coefficient based on a theory originally stated by Ångström. We apply a sinusoidally varying thermal flux incident on one face of a one-dimensional specimen and convectively cool its opposite face. This r...

Full description

Saved in:
Bibliographic Details
Published in:International communications in heat and mass transfer 1999-11, Vol.26 (8), p.1051-1059
Main Authors: Kosky, P.G., Maylotte, D.H., Gallo, J.P.
Format: Article
Language:English
Subjects:
Cooling
Exact sciences and technology
Heat flux
HEAT TRANSFER
Heat transfer coefficients
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
MATERIALS
MATERIALS SCIENCE
Mathematical models
MEASURING METHODS
Physics
THERMAL CONDUCTIVITY
Thermal diffusion
THERMAL DIFFUSIVITY
Thermal instruments, apparatus and techniques
Thermodynamic properties
Wave transmission
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We present a method for simultaneous measurement of thermal diffusivity and local heat transfer coefficient based on a theory originally stated by Ångström. We apply a sinusoidally varying thermal flux incident on one face of a one-dimensional specimen and convectively cool its opposite face. This results in a sinusoidally varying temperature on the cooled face with a measurable phase lag between the incident and transmitted waves that depends upon the material properties and the heat transfer coefficient.
ISSN:0735-1933
1879-0178
DOI:10.1016/S0735-1933(99)00096-2