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ISSN Online: 2377-424X

ISBN Print: 978-1-56700-474-8

ISBN Online: 978-1-56700-473-1

International Heat Transfer Conference 16
August, 10-15, 2018, Beijing, China

CRITICAL HEAT FLUX ENHANCEMENT ON NANOPILLAR ARRAY SURFACES

Get access (open in a dialog) DOI: 10.1615/IHTC16.mpf.024033
pages 6565-6573

Аннотация

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.