Nucleate boiling of PF-5060 liquid on nano-dendrites surfaces is investigated at saturation and ΔTsub = 10, 20 and 30 K. The electrochemically deposited surfaces layers on 10 × 10 mm Cu substrates are ∼ 139, 171 and 220 μm thick. CHF and hMNB are significantly higher and occur at lower ΔTsat than has been reported on plane, macro-, micro- and nano-structured surfaces. CHF increases linearly 4.5%/K, while hMNB, occurring at end of the fully developed nucleate boiling region, decreases and corresponding ΔTsat increases with increased subcooling. For the 171 μm-thick surface: CHFsat of 27.8 W/cm2 increases to 63.25 W/cm2 at ΔTsub = 30 K, while saturation hMNB of 13.5 W/cm2.K decreases to 12.7 W/cm2.K at 30 K subcooling. ΔTsat at hMNB and CHF increases from 2.0 K and 2.16 K at saturation to 4.2 and 6.42 K at 30 K subcooling.
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2010 14th International Heat Transfer Conference
August 8–13, 2010
Washington, DC, USA
Conference Sponsors:
- Heat Transfer Division
ISBN:
978-0-7918-4936-1
PROCEEDINGS PAPER
Saturation and Subcooled Boiling on Copper Nano-Dendrites Surfaces
Mohamed S. El-Genk,
Mohamed S. El-Genk
University of New Mexico, Albuquerque, NM
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Amir F. Ali
Amir F. Ali
University of New Mexico, Albuquerque, NM
Search for other works by this author on:
Mohamed S. El-Genk
University of New Mexico, Albuquerque, NM
Amir F. Ali
University of New Mexico, Albuquerque, NM
Paper No:
IHTC14-22108, pp. 161-170; 10 pages
Published Online:
March 1, 2011
Citation
El-Genk, MS, & Ali, AF. "Saturation and Subcooled Boiling on Copper Nano-Dendrites Surfaces." Proceedings of the 2010 14th International Heat Transfer Conference. 2010 14th International Heat Transfer Conference, Volume 1. Washington, DC, USA. August 8–13, 2010. pp. 161-170. ASME. https://doi.org/10.1115/IHTC14-22108
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