Thermal imaging of microfluidic systems as a model for investigating energy efficiency

Michael G. Mauk; Richard Y. Chiou; Dharma T. Varapula; Pranav Ram Kamarajugadda; Changchun Liu; Tzu-Liang (Bill) Tseng

doi:10.1117/12.2177387

12 May 2015 Thermal imaging of microfluidic systems as a model for investigating energy efficiency

Michael G. Mauk, Richard Y. Chiou, Dharma T. Varapula, Pranav Ram Kamarajugadda, Changchun Liu, Tzu-Liang (Bill) Tseng

Proceedings Volume 9485, Thermosense: Thermal Infrared Applications XXXVII; 94851D (2015) https://doi.org/10.1117/12.2177387
Event: SPIE Sensing Technology + Applications, 2015, Baltimore, MD, United States

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.

Citation Download Citation

Michael G. Mauk, Richard Y. Chiou, Dharma T. Varapula, Pranav Ram Kamarajugadda, Changchun Liu, and Tzu-Liang (Bill) Tseng "Thermal imaging of microfluidic systems as a model for investigating energy efficiency", Proc. SPIE 9485, Thermosense: Thermal Infrared Applications XXXVII, 94851D (12 May 2015); https://doi.org/10.1117/12.2177387

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KEYWORDS

Microfluidics

Thermography

Infrared cameras

Magnetism

Temperature metrology

Bioalcohols

Microfluidic imaging

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