Journal
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
Volume 52, Issue 7-8, Pages 2102-2109Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijheatmasstransfer.2008.10.020
Keywords
Thermal conductivity; 3-omega method
Categories
Ask authors/readers for more resources
The 3 omega method for measurement of thermal conductivity of a solid usually consists of a strip heater above a substrate, and the method is based on an approximate solution of the heat conduction problem in which the heater thickness is neglected. We establish a two-dimensional heat conduction model for the heater-on-substrate 3 omega method which takes into account the finite thickness of the heater. Analytical solutions for the finite-heater problem and the vanishing heater-thickness problem are presented utilizing the method of separation of variables. It is found that neglecting the heater thickness is not accurate at low or high frequencies, but works well in between. This frequency range becomes narrower when the heater thickness increases. (C) 2008 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available