Surface Quenching by Jet Impingement − A Review

Heat transfer performance with jet impingement quenching of ferrous and non ferrous surface are reviewed for transient cooling condition. The surface rewetting performance during quenching is critically reviewed for various rewetting parameters viz. rewetting temperature, wetting delay, maximum surface heat flux, and rewetting velocity. These rewetting parameters are further assessed for the parameters pertaining to hot surface and coolant. Various published correlations for all the mode of boiling heat transfer and rewetting parameters are also encapsulated in the present review work. The performance of hot ferrous and non ferrous surface quenching by jet impingement cooling method is reviewed for various rewetting parameters. Rewetting parameters are further evaluated on the basis of factors pertaining to coolant and target surface. The effective surface quenching begins once the hot surface attains rewetting condition or after the establishment of effective liduid solid contact.