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Study on Photothermal Stability and Photothermal Conversion Characteristics of Carbon Nanotube Nanofluids

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Abstract:

Carbon nanotube nanofluids used as recycling fluids for direct absorption solar collector were prepared by a “two-step method.” Their photothermal stability was obtained by measuring the transmittance of nanofluids with different dispersant concentrations before and after exposure to sunlight. The spectral absorption and photothermal conversion characteristics of nanofluids and base fluids were compared through insolation experiment. The results show that the nanofluids have good photothermal stability as proved by insolation experiment; furthermore, nanofluids are of higher heating rate and insolation temperature than those of base fluids; moreover, they also show better photothermal conversion characteristics.

Keywords: CARBON NANOTUBE NANOFLUIDS; PHOTOTHERMAL CHARACTERISTICS; TEMPERATURE; TRANSMITTANCE

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/asl.2011.1869

Publication date: November 1, 2011

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  • ADVANCED SCIENCE LETTERS is an international peer-reviewed journal with a very wide-ranging coverage, consolidates research activities in all areas of (1) Physical Sciences, (2) Biological Sciences, (3) Mathematical Sciences, (4) Engineering, (5) Computer and Information Sciences, and (6) Geosciences to publish original short communications, full research papers and timely brief (mini) reviews with authors photo and biography encompassing the basic and applied research and current developments in educational aspects of these scientific areas.
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