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Enhancing pool boiling heat transfer of modified surface by 3D Lattice Boltzmann method

In this study, pool boiling from micro-pillar modified surface has been simulated numerically by a 3D Lattice Boltzmann method(LBM). Effects of geometries and wettability of micro-pillaron boiling heat transfer performance were also systematically evaluated. Result showed that compared with in micro-pillar surface, heat flux of cubic micro-pillar surface was the highest with the lowest wall temperature. In addition, compared to hydrophilic condition, Heat flux of cubic micro-pillar surface with hydrophobic wettability increased by 98.3%. This is because hydrophobic wettability influenced nucleation site density, vapor-liquid flow field and heat transfer performance much more than cubic shaped geometry. Finally, heat flux of cubic micro-pillar surface with hybrid wettability increased by 430.7% compared to pure hydrophilic wettability. That is due to optimal hybrid wettability surface could control nucleate site location, restrict bubble growth, and increase obviously heat transfer performance.
PAPER REVISED: 2023-04-17
PAPER ACCEPTED: 2023-04-17
  1. Ren, Tianling, Zhang, et al., A review of small heat pipes for electronics, Applied Thermal Engineering Design Processes Equipment Economics, 96(2016), pp.1-17
  2. Cong B, et al., Investigation on the heat dissipation of high heat flux chip array by fractal microchannel networks, Thermal Science, 0(2022), pp.79-79
  3. Lei X, et al, Study on flow and heat transfer characteristics of cooling channel filled with x-shaped truss array, Thermal Science, 0(2022), pp.110-110
  4. Haq K et al., Analysis of periodic heat transfer through extended surfaces, Thermal Science, 0(2022), pp.184-184
  5. M.Z Ye, et al., Effects of elastic pillars on fluid flow and heat transfer enhancement in a microchannel, Thermal Science, 0(2022), pp.139-139
  6. Xin, Kong, et al., Experimental study of pool boiling heat transfer on novel bistructured surfaces based on micro-pin-finned structure, Experimental Thermal and Fluid Science, 9(2018), pp. 9-19
  7. Shen B, et al., Enhanced Pool Boiling of Ethanol on Wettability-patterned Surfaces, Applied Thermal Engineering, 149(2018), pp.325-331
  8. Koukoravas T P, et al., Experimental investigation of a vapor chamber featuring wettability-patterned surfaces, Applied Thermal Engineering, 178(2020), pp.115522
  9. Jo H et al., Single bubble dynamics on hydrophobic-hydrophilic mixed surfaces, International Journal of Heat and Mass Transfer, 93(2016), pp.554-565
  10. Kousalya A S et al., Heterogeneous wetting surfaces with graphitic petal-decorated carbon nanotubes for enhanced flow boiling, International Journal of Heat and Mass Transfer, (87)2015, pp.380-389
  11. Xie X, et al., Thermal performance of the flat micro-heat pipe with the wettability gradient surface by laser fabrication, International Journal of Heat and Mass Transfer, 125(2018), pp.658-669
  12. B. Bourdon, et al., Wettability influence on the onset temperature of pool boiling: Experimental evidence onto ultra-smooth surfaces, Advances in Colloid and Interface Science, 221(2015), pp.34-40
  13. Hu Y, et al., Thermal performance enhancement of grooved heat pipes with inner surface treatment, International Journal of Heat and Mass Transfer, 67(2013), pp.416-419
  14. X.Y L, et al., Numerical study on the effect of thermal diffusivity ratio in phase change heat transfer of crude oil using lattice Boltzmann method, Thermal Science, 0(2022), pp.178-178
  15. Zhou P, et al., Lattice Boltzmann simulation of nucleate boiling in micro-pillar structured surface, International Journal of Heat and Mass Transfer, 131(2019), pp.1-10
  16. W. X. Li, et al., Nucleate boiling enhancement by structured surfaces with distributed wettability-modified regions: A lattice Boltzmann study, Applied Thermal Engineering, 194(2021), pp.117130
  17. Mu Y T, et al, Nucleate boiling performance evaluation of cavities at mesoscale level, International Journal of Heat and Mass Transfer, 106(2017), pp.708-719
  18. Jiang M.X, et al, Optimization of micro-channel heat sink with trapezoidal cavities and solid/slotted oval pins based on genetic algorithm and back propagation neural network, Thermal Science, 0(2022), pp.121-121
  19. He X, et al., Analytic solutions of simple flows and analysis of nonslip boundary conditions for the lattice Boltzmann BGK model, Journal of Statistical Physics, 87(1997), pp.115-136
  20. Zhang Y, et al., Nucleate Pool Boiling Heat Transfer on a Micro-Pin-Finned Surface in Short-Term Microgravity, Heat Transfer Engineering, (2016), pp.594-610
  21. A C H, et al., Nucleation site interaction between artificial cavities during nucleate pool boiling on silicon w eccentric factor s solid x position, m w wall Greek t tangential a thermal diffusivity, m2/s v vapor ration of cp,l to cp,v Acknowledgments This research work was sponsored by National Natural Science Foundation of China (Grant No. 52006218). References with integrated micro-heater and temperature micro-sensors, International Journal of Heat and Mass Transfer, 55(2012), pp.2769-2778
  22. Cao Z, et al., Pool boiling heat transfer of FC-72 on pin-fin silicon surfaces with nanoparticle deposition, International Journal of Heat and Mass Transfer, 126(2018), pp.1019-1033
  23. Malenkov I G, Detachment frequency as a function of size for vapor bubbles, Journal of Engineering Physics, 20(1971), pp.704-708
  24. Takagi S Y, Bubbling features from a single artificial cavity, International Journal of Heat and Mass Transfer, 44(2001), pp.2763-2776
  25. Jo H J, et al., A study of nucleate boiling heat transfer on hydrophilic, hydrophobic and heterogeneous wetting surfaces, International Journal of Heat and Mass Transfer, 54(2011), pp.5643-5652
  26. Betz, et al., Boiling heat transfer on superhydrophilic, superhydrophobic, and superbiphilic surfaces, International Journal of Heat and Mass Transfer, 57(2013), pp.733-741