Heat transfer enhancement of spray cooling with ammonia by microcavity surfaces

Experimental investigation of aircraft spray cooling system with different heating surfaces and different additives

“…Spray cooling on different surface structures has been widely investigated with experimental methods [9][10][11][12][13]. Silk et al [14] studied the effects of macro-structured surface to spray cooling performance applying PF-5060 as cooling medium, and discovered that straight fin surface has the best heat transfer performance, followed by the cubic pin fins and the pyramids.…”

Experimental investigation of spray cooling on micro-, nano- and hybrid-structured surfaces

“…Surface morphology is another critical effect for spray cooling heat transfer enhancement. Enhanced surfaces, such as milli-structured surfaces [6], micro-structured surfaces [7,8] and microcavity surfaces [9,10] have been shown to effectively improve the heat transfer.…”

Experimental evaluation of spray cooling of R-134a on plain and enhanced surfaces

“…They found the heat flux to be insensitive to the coolant mass flow rate for the 0.4-mm finned surface. Yang et al (2013) investigated the effect of the geometry of microcavities on the heat transfer behavior during singlephase and nucleate-boiling dominated regimes of spray cooling using ammonia as the working fluid. The surface geometry did no influence the heat transfer coefficient in the single-phase regime, but increased dramatically the heat transfer performance in the presence of nucleate boiling.…”