Evaluation of a Method for Heat Transfer Measurements and Thermal Visualization Using a Composite of a Heater Element and Liquid Crystals

[+] Author and Article Information
S. A. Hippensteele, L. M. Russell, F. S. Stepka

NASA Lewis Research Center, Cleveland, Ohio 44135

J. Heat Transfer 105(1), 184-189 (Feb 01, 1983) (6 pages) doi:10.1115/1.3245539 History: Received December 14, 1981; Online October 20, 2009


Commercially available elements of a composite consisting of a plastic sheet coated with liquid crystal, another sheet with a thin layer of a conducting material (gold or carbon), and copper bus bar strips were evaluated and found to provide a simple, convenient, accurate, and low-cost measuring device for use in heat transfer research. The particular feature of the composite is its ability to obtain local heat transfer coefficients and isotherm patterns that provide visual evaluation of the thermal performances of turbine blade cooling configurations. Examples of the use of the composite are presented.

Copyright © 1983 by ASME
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