Subcooled flow boiling in a microchannel with a pin fin and a liquid jet in crossflow
Abbreviated Journal Title
Int. J. Heat Mass Transf.
Flow boiling; Pin fin; Microchannel; ONB; Nucleate boiling dominated; Jet in crossflow; Heat transfer enhancement; CRITICAL HEAT-FLUX; PRESSURE-DROP; CONVECTIVE FLOW; ARRAY; WATER; TUBE; Thermodynamics; Engineering, Mechanical; Mechanics
This experimental study presents subcooled flow boiling of an engineering fluid - HFE-7000 - downstream a single pin fin in a microchannel. A liquid secondary jet was introduced into the flow to examine its merits pertinent to heat transfer enhancement. It was found that for HFE-7000 high wall superheats (Delta T-(sat,T-ONB) similar to 40 degrees C) were required for the onset of nucleate boiling (ONB). Once boiling started, nucleate boiling dominated. Heat transfer coefficient increased monotonically with heat flux, independent of mass flux and jet injections. Secondary flow injection, which was previously found to be an affective single phase heat transfer enhancement technique, showed limited potential for fully developed nucleate boiling. (C) 2015 Elsevier Ltd. All rights reserved.
International Journal of Heat and Mass Transfer
"Subcooled flow boiling in a microchannel with a pin fin and a liquid jet in crossflow" (2015). Faculty Bibliography 2010s. 6861.