Nucleate boiling heat transfer enhancement for water and FC-72 on titanium oxide and silicon oxide surfaces
Abbreviated Journal Title
Int. J. Heat Mass Transf.
Boiling enhancement; Titanium oxide; Silicon oxide; Hydrophilic; MECHANISM; Thermodynamics; Engineering, Mechanical; Mechanics
An experimental study was performed to investigate the nucleate boiling and critical heat flux (CHF) of water and FC-72 dielectric liquid on hydrophilic titanium oxide (TiO(2)) nanoparticle modified Surface A 1 cm(2) copper heater with 1 mu m thick TiO(2) Coating Was utilized in saturated pool boiling tests with water and highly-wetting FC-72. and its performance was compared to that of a smooth surface Results showed that TiO(2) coated surface increased CHF by 50.4% and 38 2% for water and FC-72. respectively, and therefore indicated that boiling performance enhancement depends on the level of wettability improvement. A silicon oxide (SiO(2)) coated surface, exhibiting similar surface topology, was tested to isolate the roughness related enhancement from the overall enhancement. Data confirmed that hydrophilicity of TiO(2) coated Surface provides an additional mechanism for boiling enhancement (C) 2010 Elsevier Ltd. All rights reserved
International Journal of Heat and Mass Transfer
"Nucleate boiling heat transfer enhancement for water and FC-72 on titanium oxide and silicon oxide surfaces" (2010). Faculty Bibliography 2010s. 946.