Saturated pool boiling experiments are conducted over silicon substrates with and without Multi-walled Carbon Nanotubes (MWCNT) with PF-5060 as the test fluid. Micro-fabricated thin film thermocouples located on the substrate acquire surface temperature fluctuation data at 1 kHz frequency. The high frequency surface temperature data is analyzed for the presence of chaotic dynamics. The shareware code, TISEAN© is used in analysis of the temperature time-series. Results show the presence of low-dimensional deterministic chaos, near Critical Heat Flux (CHF) and in some parts of the Fully Developed Nucleate Boiling (FDNB) regime. Some evidence of chaotic dynamics is also obtained for the film boiling regimes. Singular value decomposition is employed to generate pseudo-phase plots of the attractor. In contrast to previous studies involving multiple nucleation sites, the pseudo-phase plots show the presence of multi-fractal structure at high heat fluxes and in the film boiling regime. An estimate of invariant quantities such as correlation dimensions and Lyapunov exponents reveals the change in attractor geometry with heat flux levels. No significant impact of surface texturing is visible in terms of the invariant quantities.
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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
Dynamics of Pool Boiling on Plain and Nanotube Coated Silicon Surfaces
Vijaykumar Sathyamurthi,
Vijaykumar Sathyamurthi
Texas A&M University, College Station, TX
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Debjyoti Banerjee
Debjyoti Banerjee
Texas A&M University, College Station, TX
Search for other works by this author on:
Vijaykumar Sathyamurthi
Texas A&M University, College Station, TX
Debjyoti Banerjee
Texas A&M University, College Station, TX
Paper No:
IHTC14-22921, pp. 563-576; 14 pages
Published Online:
March 1, 2011
Citation
Sathyamurthi, V, & Banerjee, D. "Dynamics of Pool Boiling on Plain and Nanotube Coated Silicon 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. 563-576. ASME. https://doi.org/10.1115/IHTC14-22921
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