Recent advancements in integrated circuits demand the development of novel thermal management schemes that can dissipate ultra-high heat fluxes with high heat transfer coefficients. Previous study demonstrated the potential of thin film evaporation on micro/nanostructured surfaces [1–11]. Theoretical calculations indicate that heat transfer coefficients on the order of 106 W/m2K and heat fluxes of 105 W/cm2 can be achievable with water [1, 5–6]. However, in previous experimental setup, the coolant has to propagate across the surface which limits the increase in heat flux and the heat transfer coefficient, while adding complexity to the system design. This work aims to decouple the propagation of the coolant from the evaporation process through a novel experimental configuration. Thin nanoporous membranes of 13 mm diameter were used where a metal layer was deposited on the top surface to serve as a resistance heater. Liquid was supplied from the bottom of the membrane, driven through the nanopores by capillary force, and evaporated from the top surface. Heat transfer coefficient over 104 W/m2K was obtained with isopropyl alcohol (IPA) as the coolant, which is only two orders of magnitude smaller than the theoretical limit. This work offers insights into optimal experimental designs towards achieving kinetic limits of heat transfer for thin film evaporation based thermal management solutions.
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ASME 2012 Heat Transfer Summer Conference collocated with the ASME 2012 Fluids Engineering Division Summer Meeting and the ASME 2012 10th International Conference on Nanochannels, Microchannels, and Minichannels
July 8–12, 2012
Rio Grande, Puerto Rico, USA
Conference Sponsors:
- Heat Transfer Division
ISBN:
978-0-7918-4478-6
PROCEEDINGS PAPER
Thin Film Evaporation Using Nanoporous Membranes for Enhanced Heat Transfer Available to Purchase
Rong Xiao,
Rong Xiao
Massachusetts Institute of Technology, Cambridge, MA
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Shalabh C. Maroo,
Shalabh C. Maroo
Syracuse University, Syracuse, NY
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Evelyn N. Wang
Evelyn N. Wang
Massachusetts Institute of Technology, Cambridge, MA
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Rong Xiao
Massachusetts Institute of Technology, Cambridge, MA
Shalabh C. Maroo
Syracuse University, Syracuse, NY
Evelyn N. Wang
Massachusetts Institute of Technology, Cambridge, MA
Paper No:
HT2012-58352, pp. 103-107; 5 pages
Published Online:
July 24, 2013
Citation
Xiao, R, Maroo, SC, & Wang, EN. "Thin Film Evaporation Using Nanoporous Membranes for Enhanced Heat Transfer." Proceedings of the ASME 2012 Heat Transfer Summer Conference collocated with the ASME 2012 Fluids Engineering Division Summer Meeting and the ASME 2012 10th International Conference on Nanochannels, Microchannels, and Minichannels. Volume 2: Heat Transfer Enhancement for Practical Applications; Fire and Combustion; Multi-Phase Systems; Heat Transfer in Electronic Equipment; Low Temperature Heat Transfer; Computational Heat Transfer. Rio Grande, Puerto Rico, USA. July 8–12, 2012. pp. 103-107. ASME. https://doi.org/10.1115/HT2012-58352
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