Liquid nanoparticle suspensions, popularly termed “nanofluids,” have been the subject of numerous investigations because of their interesting thermal transport properties. Their propensity to scatter and absorb electromagnetic radiation enables other applications that can take advantage of both their radiative and thermal transport properties. In particular, we are working to develop direct-absorption solar thermal collectors in which nanofluids serve to absorb incident sunlight, thus heating the fluid directly and more efficiently than conventional solar collectors. Our experimental results, in which we irradiate nanofluids with a continuous-wave laser, demonstrate that boiling can be induced at lower incident light fluxes compared to a thin layer of pure water in front of a black absorptive backing. These findings suggest that improved solar energy conversion systems can be developed, including solar-driven direct-steam generators.
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ASME 2010 8th International Conference on Nanochannels, Microchannels, and Minichannels collocated with 3rd Joint US-European Fluids Engineering Summer Meeting
August 1–5, 2010
Montreal, Quebec, Canada
Conference Sponsors:
- Fluids Engineering Division
ISBN:
978-0-7918-5450-1
PROCEEDINGS PAPER
Photothermal Energy Conversion in Liquid Nanoparticle Suspensions
P. E. Phelan,
P. E. Phelan
Arizona State University, Tempe, AZ
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R. S. Prasher,
R. S. Prasher
Arizona State University, Tempe, AZ
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T. Otanicar
T. Otanicar
Loyola Marymount University, Los Angeles, CA
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P. E. Phelan
Arizona State University, Tempe, AZ
R. Taylor
Arizona State University, Tempe, AZ
R. Adrian
Arizona State University, Tempe, AZ
R. S. Prasher
Arizona State University, Tempe, AZ
T. Otanicar
Loyola Marymount University, Los Angeles, CA
Paper No:
FEDSM-ICNMM2010-30172, pp. 781-787; 7 pages
Published Online:
March 1, 2011
Citation
Phelan, PE, Taylor, R, Adrian, R, Prasher, RS, & Otanicar, T. "Photothermal Energy Conversion in Liquid Nanoparticle Suspensions." Proceedings of the ASME 2010 8th International Conference on Nanochannels, Microchannels, and Minichannels collocated with 3rd Joint US-European Fluids Engineering Summer Meeting. ASME 2010 8th International Conference on Nanochannels, Microchannels, and Minichannels: Parts A and B. Montreal, Quebec, Canada. August 1–5, 2010. pp. 781-787. ASME. https://doi.org/10.1115/FEDSM-ICNMM2010-30172
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