A Molecular Dynamics Study of Heat Transfer Enhancement during Phase Change from a Nanoengineered Solid Surface
Reason for Using Liquid Argon and Extension to Complex Fluid
3. Results and Discussion
3.1. Effect of Surface Wetting Condition
3.2. Effect of Nano Structures
3.3. Effect of Nano Slots
3.4. Effect of Nano Level Surface Roughness
3.5. Effect of the Degree of Nano Structures for Same Effective Surface Area
- When the solid surface is transformed from hydrophobic condition to hydrophilic condition, an increase of heat transfer is observed during phase change phenomena. This happens due to the increase in the surface wettability condition. Increased surface wettability allows the liquid atoms to be more adjacent to the solid surface. Therefore, solid-liquid interaction is modified, and it results in an enhancement of heat transfer.
- The heat transfer rate from solid surface to liquid is enhanced for a nanostructured surface compared to a flat surface due to the increase of the effective surface area.
- Introducing nano slots increases the effective surface area as well as solid-liquid interaction and decreases the resistance to heat flow. Therefore, it results in an enhancement of heat transfer during phase change phenomena.
- Nano level surface roughness enhances heat transfer during phase change by increasing the effective surface area and solid-liquid interaction and decreasing the interfacial thermal resistance.
- If the effective surface area is kept the same, heat transfer during phase change can still be very slightly modified by increasing the number of active nucleation sites. When two nanostructures were introduced on the solid surface instead of one, keeping the effective surface area the same, there was still a very slight increase of the net evaporation number.
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Data Availability Statement
Conflicts of Interest
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Morshed, A.K.M.M.; Shahadat, M.R.B.; Roni, M.R.H.; Masnoon, A.S.; Shamim, S.A.-A.; Paul, T.C. A Molecular Dynamics Study of Heat Transfer Enhancement during Phase Change from a Nanoengineered Solid Surface. Processes 2021, 9, 715. https://doi.org/10.3390/pr9040715
Morshed AKMM, Shahadat MRB, Roni MRH, Masnoon AS, Shamim SA-A, Paul TC. A Molecular Dynamics Study of Heat Transfer Enhancement during Phase Change from a Nanoengineered Solid Surface. Processes. 2021; 9(4):715. https://doi.org/10.3390/pr9040715Chicago/Turabian Style
Morshed, A. K. M. Monjur, Muhammad Rubayat Bin Shahadat, Md. Rakibul Hasan Roni, Ahmed Shafkat Masnoon, Saif Al-Afsan Shamim, and Titan C. Paul. 2021. "A Molecular Dynamics Study of Heat Transfer Enhancement during Phase Change from a Nanoengineered Solid Surface" Processes 9, no. 4: 715. https://doi.org/10.3390/pr9040715