Contact Angle Measurements for Advanced Thermal Management Technologies | Zendy

Brenton Taft | Zendy; Sally M. Smith | Zendy; Jacob Moulton | Zendy

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Contact Angle Measurements for Advanced Thermal Management Technologies

Author(s) -

Brenton Taft,

Sally M. Smith,

Jacob Moulton

Publication year - 2014

Publication title -

frontiers in heat and mass transfer

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.404

H-Index - 18

ISSN - 2151-8629

DOI - 10.5098/hmt.5.6

Subject(s) - thermal fluids , frontier , thermal , thermal management of electronic devices and systems , materials science , nanotechnology , engineering physics , mechanical engineering , engineering , political science , physics , thermodynamics , thermal resistance , law

This study investigates the wettability of fluid-solid interactions of interest for oscillating heat pipe (OHP) applications. Measurements were taken using two techniques: the sessile drop method and capillary rise at a vertical plate. Tested surface materials include copper, aluminum, and Teflon PFA. The working fluids tested were water, acetone, R-134a, and HFO-1234yf. A novel low-pressure experimental setup was developed for refrigerant testing. Results show that the refrigerants have significantly lower hysteresis than the water and acetone-based systems, which is thought to lead to better heat transfer in OHP design.

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