A Stable Carbon Nanotube Nanofluid for Latent Heat-Driven Volumetric Absorption Solar Heating Applications

Figure 2

Optical characterization of various concentrations of MWCNT/DA nanofluids. (a) Transmission spectra immediately after synthesis (dash) and after 20 months (solid). (b) After synthesis (dash) and heating to 65°C (solid). (c) Extinction coefficients. (d) Stored energy fraction. Absorption path length was 1 cm.

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(b)

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