Molecular dynamics simulation was performed to investigate pool boiling heat transfer of nanofluids on rough walls. Nanoparticle movement was calculated to investigate the physical mechanisms of boiling heat transfer. The simulated system consisted of four regions: vapor argon, liquid argon, solid copper, and copper nanoparticles, and three cases were considered: base fluids (case A), nanoparticles far from the wall (case B), and nanoparticles near the wall (case C). Boiling heat transfer was enhanced by the addition of nanoparticles, and the enhancement increased with increasing heating temperature. Case C showed that nanoparticles were adsorbed on the nonevaporated film and did not move with the fluids. Thus, nanoparticles enhanced heat and energy transfer between the wall and fluids. Case B showed that nanoparticles moved randomly in the fluid area, which enhanced heat transfer within the fluid.
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ASME 2017 Heat Transfer Summer Conference
July 9–12, 2017
Bellevue, Washington, USA
Conference Sponsors:
- Heat Transfer Division
ISBN:
978-0-7918-5789-2
PROCEEDINGS PAPER
Molecular Dynamics Simulation of Pool Boiling Heat Transfer of Nanofluids on Rough Walls
Xunyan Yin,
Xunyan Yin
Dalian University of Technology, Dalian, China
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Minli Bai,
Minli Bai
Dalian University of Technology, Dalian, China
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Chengzhi Hu,
Chengzhi Hu
Dalian University of Technology, Dalian, China
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Jizu Lv
Jizu Lv
Dalian University of Technology, Dalian, China
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Xunyan Yin
Dalian University of Technology, Dalian, China
Minli Bai
Dalian University of Technology, Dalian, China
Chengzhi Hu
Dalian University of Technology, Dalian, China
Jizu Lv
Dalian University of Technology, Dalian, China
Paper No:
HT2017-4735, V002T10A015; 10 pages
Published Online:
October 18, 2017
Citation
Yin, X, Bai, M, Hu, C, & Lv, J. "Molecular Dynamics Simulation of Pool Boiling Heat Transfer of Nanofluids on Rough Walls." Proceedings of the ASME 2017 Heat Transfer Summer Conference. Volume 2: Heat Transfer Equipment; Heat Transfer in Multiphase Systems; Heat Transfer Under Extreme Conditions; Nanoscale Transport Phenomena; Theory and Fundamental Research in Heat Transfer; Thermophysical Properties; Transport Phenomena in Materials Processing and Manufacturing. Bellevue, Washington, USA. July 9–12, 2017. V002T10A015. ASME. https://doi.org/10.1115/HT2017-4735
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