Article ID Journal Published Year Pages File Type
657086 International Journal of Heat and Mass Transfer 2015 5 Pages PDF
Abstract
In this work, we report on the thermal response and evaporation rate of nanofluids containing plasma-functionalized multi-walled carbon nanotubes (MWCNTs) subjected to localized optical (laser) heating. It is shown that an optical-to-heat energy conversion efficiency of at least 64% occurs using a 200 mW continuous wave 532 nm laser heating a 15 μL droplet, resulting in a localized heat generation rate of at least 133 W cm−3. From here evaporation of the droplet is caused by an increase of the overall fluid temperature (and therefore increased vapor pressure) and not non-equilibrium vapor production.
Related Topics
Physical Sciences and Engineering Chemical Engineering Fluid Flow and Transfer Processes
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