The bubble fossil record: insight into boiling nucleation using nanofluid pool-boiling
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Subcooled pool boiling of Al2O3/water nanofluid (0.1 vol%) was investigated. Scanning electron microscopy and energy dispersive X-ray spectroscopy were used to observe surface features of the wire heater where nanoparticles had deposited. A layer of aggregated alumina particles collected on the heated surface, where evidence of fluid shear associated with bubble nucleation and departure was ''fossilized'' in the fluidized nano-porous surface coating. These structures contain evidence of the fluid forces present in the microlayer prior to departure and provide a unique understanding of boiling phenomena. A unique mode of heat transfer was identified in nanofluid pool boiling. © Springer-Verlag 2011.
author list (cited authors)
Huitink, D., Ontiveros, E., & Hassan, Y.