“…Jet impingement technique has been applied to a variety of production processes including the drying of papers and textiles, the tempering of glass, the postprocessing of some metals due to its effective heat and mass transfer performance, in particular this jet impingement cooling has been effectively used to eliminate excessive thermal load near the leading edge of the inner surface of gas turbine blades and the outer wall of combustors [3][4][5][6][7]. The study on cooling of high heat flux surface in fusion reactor by impinging planar jet flow was reviewed by Inoue et al [8][9][10]. Bintoro et al [11] reported designing and testing of a closed-loop electronics cooling system that adopts bi-technologies: single phase impinging jet and mini channels heat exchanger.…”