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Proceedings Paper

Thermal imaging of microfluidic systems as a model for investigating energy efficiency
Author(s): Michael G. Mauk; Richard Y. Chiou; Dharma T. Varapula; Pranav Ram Kamarajugadda; Changchun Liu; Tzu-Liang (Bill) Tseng
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Paper Abstract

We explore the use of a commercial thermal imaging infrared camera (7-12 micron, uncooled microbolometer array, 320 x 240 resolution) to characterize microfluidic devices with the aims of: 1) evaluating the usefulness of thermal imaging to assess various flow configurations with respect to heat transfer, and 2) developing educational laboratory projects combining rapid prototyping, thermal imaging, microfluidics, and heat transfer. We investigated concurrent and countercurrent heat exchangers, mixing streams of different temperature (cold and hot water), mixing streams yielding a heat of mixing (ethanol and water), mixing streams yielding a heat of reaction (acid-base neutralization), and freezing and heating flowing streams in channels with a Peltier module. Energy efficiency can be assessed to determine the feasibility and effectiveness of microfluidic designs. Substantial improvements in mixing and heat transfer using a magnetic stirrer are demonstrated with thermal imaging.

Paper Details

Date Published: 12 May 2015
PDF: 12 pages
Proc. SPIE 9485, Thermosense: Thermal Infrared Applications XXXVII, 94851D (12 May 2015); doi: 10.1117/12.2177387
Show Author Affiliations
Michael G. Mauk, Drexel Univ. (United States)
Richard Y. Chiou, Univ. of Pennsylvania (United States)
Dharma T. Varapula, Drexel Univ. (United States)
Pranav Ram Kamarajugadda, Drexel Univ. (United States)
Changchun Liu, Univ. of Pennsylvania (United States)
Tzu-Liang (Bill) Tseng, The Univ. of Texas at El Paso (United States)

Published in SPIE Proceedings Vol. 9485:
Thermosense: Thermal Infrared Applications XXXVII
Sheng-Jen (Tony) Hsieh; Joseph N. Zalameda, Editor(s)

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