ISSN Online: 2377-424X
ISBN Print: 978-1-56700-474-8
ISBN Online: 978-1-56700-473-1
International Heat Transfer Conference 16
CRITICAL HEAT FLUX ENHANCEMENT ON NANOPILLAR ARRAY SURFACES
Resumo
Boiling is a key heat transfer process for a variety of power generation and thermal management technologies. In this study, we show that nanopillar arrays fabricated on a substrate enhance both the critical heat flux (CHF) and the critical temperature at CHF of the substrate and thus, effectively increase the limit of boiling before the boiling crisis is triggered. We reveal that the enhancement in both the CHF and the critical temperature results from an intensified rewetting process which increases with the height of nanopillars.