Abstract
The aim of this study was to analyze the effect of nanostructured surfaces on the nucleate boiling of distilled water at saturation temperature and atmospheric pressure. The nanostructures studied consisted of nanoparticles of molybdenum (obtained by the sputtering method) and of maghemite, deposited on a substrate of very thin Constantan tape. The results obtained with the nanostructures were compared with experimental data for smooth and rough tapes (substrate). The nanostructures increased the surface wettability, especially in the case of the maghemite deposition, and consequently increased the critical heat flux values. An increase in the heat transfer coefficient was observed only for high heat fluxes. The measurement of the apparent contact angle showed that the rough substrates are highly hydrophobic and enhance the heat transfer coefficient.
Similar content being viewed by others
Abbreviations
- CHF:
-
Critical heat flux
- SEM:
-
Scanning electron microscopy
- AFM:
-
Atomic force microscopy
- Sccm:
-
Cubic centimeter per minute
- h :
-
Heat transfer coefficient (kW/m2K)
- h lv :
-
Latent heat of vaporization (kJ/kg)
- q″:
-
Heat flux (kW/m2)
- R :
-
Electrical resistance (Ω)
- R a :
-
Average roughness (μm)
- T sat :
-
Saturation temperature of the fluid (°C)
- T w :
-
Surface temperature (°C)
- V :
-
Volume (m3)
- I :
-
Electrical current (A)
- A :
-
Heated surface area (m2)
- e :
-
Nominal deposited layer thickness (m)
- m :
-
Mass (kg)
- θ :
-
Apparent contact angle (°)
- ρ :
-
Density (kg/m³)
- σ :
-
Surface tension (N/m)
- ν :
-
Specific volume (m³/kg)
- a:
-
Advancing
- r:
-
Receding
- l:
-
Liquid
- v:
-
Vapor
References
Ahn HS, Lee C, Kim H, Jo HJ, Kang SH, Kim J, Kim MH (2010) Pool boiling CHF enhancement by micro/nanoscale modification of zircaloy-4 surface. Nucl Eng Des 240:3350–3360
Bang IC, Chang SH (2005) Boiling heat transfer performance and phenomena of Al2O3-water nano-fluids from a plain surface in a pool. Int J Heat Mass Transf 48:2407–2419
Barber J, Brutin D, Tadrist L (2011) A review on boiling heat transfer enhancement with nanofluids. Nanoscale Res Lett 6:280
Behrisch R (1981) Sputtering by particle bombardment. Springer, Berlin
Carey VP (1992) Liquid-vapor phase-change phenomena. Taylor & Francis, USA
Choi US (1995) Developments and applications of non-Newtonian flows. Trans ASME 66:99–105
Coursey JS, Kim J (2008) Nanofluid boiling: the effect of surface wettability. Int J Heat Fluid Flow 29:1577–1585
Golubovic MN, Hettiarachchi HDM, Worek WM, Minkowycz WJ (2009) Nanofluids and critical heat flux, experimental and analytical study. Appl Therm Eng 29:1281–1288
Hendricks TJ, Krishnan S, Choi C, Chang C, Paul B (2010) Enhancement of pool-boiling heat transfer using nanostructured surfaces on aluminum and copper. Int J Heat Mass Transf 53:3357–3365
Kim HD, Kim JB, Kim MH (2007) Experimental studies on CHF characteristics of nano-fluids at pool boiling. Int J Multiph Flow 33:691–706
Kim J (2009) Review of nucleate pool boiling bubble heat transfer mechanisms. Int J Multiph Flow 35:1067–1076
Kim SJ, Bang IC, Buongiorno J, Hu LW (2006) Effects of nanoparticle deposition on surface wettability influencing boiling heat transfer in nanofluids. Appl Phys Lett 89:153107-1–153107-3
Kim SJ, Bang IC, Buongiorno J, Hub LW (2007) Surface wettability change during pool boiling of nanofluids and its effect on critical heat flux. Int J Heat Mass Transf 50:4105–4116
Kwark SM, Moreno G, Kumar R, Moon H, You SM (2010) Nanocoating characterization in pool boiling heat transfer of pure water. Int J Heat Mass Transf 53:4579–4587
Massart R (1982) Magnetic fluids and process for obtain them. US Patent 4329241
Stutz B, Morceli CHS, Silva MF, Cioulachtjian S, Bonjour J (2011) Influence of nanoparticle surface coating on pool boiling. Exp Therm Fluid Sci 35:1239–1249
Wen D, Corr M, Hu X, Lin G (2011) Boiling heat transfer of nanofluids: the effect of heating surface modification. Int J Therm Sci 50:480–485
Wen D, Ding Y (2005) Experimental investigation into the pool boiling heat transfer of aqueous based γ-alumina nanofluids. J Nanopart Res 7:265–274
You SM, Kim JH, Kim KH (2003) Effect of nanoparticles on critical heat flux of water in pool boiling heat transfer. Appl Phys Lett 83:3374–3376
Acknowledgments
The authors gratefully acknowledge the support of CAPES (PROENG, NANOBIOTEC and PNPD Projects) and CNPq (Project of the UNIVERSAL Edital) and Mrs. Maria de Fátima da Silva and Mr. Marcelo Parise from NFA/Instituto de Física/Universidade de Brasília for supplying the nanoparticles. The authors also extend their gratitude to Mr. A. J. C. Pacheco, Mr. A. Oliveira and Ms. B. C. P. Morastoni for their important contribution to the laboratory work.
Author information
Authors and Affiliations
Corresponding author
Additional information
Technical Editor: Fernando Alves Rochinha.
Rights and permissions
About this article
Cite this article
Heitich, L.V., Passos, J.C., Cardoso, E.M. et al. Nucleate boiling of water using nanostructured surfaces. J Braz. Soc. Mech. Sci. Eng. 36, 181–192 (2014). https://doi.org/10.1007/s40430-013-0058-2
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s40430-013-0058-2