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Effects of Surface Engineering on HFE-7100 Pool Boiling Heat Transfer

Mlakar, Genesis
http://rave.ohiolink.edu/etdc/view?acc_num=case1619036502968687

Abstract Details

2021, Master of Sciences (Engineering), Case Western Reserve University, EMC - Aerospace Engineering.
This study explores pool boiling of HFE-7100 on copper surfaces. The key objective of this study was to examine the effects that surface engineering has on nucleate boiling performance. The surface enhancements studied are roughness, artificial nucleation sites, and the combination of both. Data were gathered at Case Western Reserve University’s Two-Phase Flow and Thermal Management Laboratory. Observing roughness between 0.480 μm to 7.564 μm shows that HTC improves with increasing roughness. Observing hole diameters from 1 mm to 3 mm and hole pitch, or spacing to diameter ratio, from 1.75 to 3.5; a configuration with hole diameter of 1 mm and pitch of 2.5 provides the best improvement to HTC compared to a bare surface with roughness of 0.480 μm, while the configuration with hole diameter of 1 mm and pitch of 3.5 provides worse HTC compared to a bare surface with roughness of 0.480 μm. Applying a roughness to a hole pattern also improves HTC with increasing roughness compared to both a bare surface with roughness of 0.480 μm, as well as to the hole pattern alone. The majority of the surface enhancement modes yields overall improvements in HTC. The introduction of surface enhancement generally decreases CHF.
Chirag Kharangate (Advisor)
Chirag Kharangate (Committee Chair)
Yasuhiro Kamotani (Committee Member)
Ya-Ting Liao (Committee Member)
128 p.
Engineering; Mechanical Engineering
Pool Boiling, Nucleate Boiling, Boiling, Boiling Heat Transfer, Heat Transfer, Two-Phase, HFE-7100, CHF, Critical Heat Flux, Heat Transfer Coefficient, HTC, Roughness, Hole Pattern, Surface Enhancement, Surface Engineering

Recommended Citations

Citations

  • Mlakar, G. (2021). Effects of Surface Engineering on HFE-7100 Pool Boiling Heat Transfer [Master's thesis, Case Western Reserve University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=case1619036502968687

    APA Style (7th edition)

  • Mlakar, Genesis. Effects of Surface Engineering on HFE-7100 Pool Boiling Heat Transfer. 2021. Case Western Reserve University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=case1619036502968687.

    MLA Style (8th edition)

  • Mlakar, Genesis. "Effects of Surface Engineering on HFE-7100 Pool Boiling Heat Transfer." Master's thesis, Case Western Reserve University, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=case1619036502968687

    Chicago Manual of Style (17th edition)

case1619036502968687
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© 2021, all rights reserved.
This open access ETD is published by Case Western Reserve University School of Graduate Studies and OhioLINK.
Release 3.2.12