Heat transfer in rectangular pin-finned channel with perforated plate

An experimental study was performed to obtain heat transfer characteristics in a rectangular pin-fin arrays channel with jet impingement. The effect of the distance between the arrays and the perforated plate on heat transfer characteristics of channel was also measured. A thin film was used as heater to supply the equal heat flux boundary condition. It has been found that pin fin can improve the heat transfer greatly. And the enhancement can also be obtained through the design of impingement. The conclusions still show that the enhancement is variable with the distance between the pin fin arrays and the perforated plate. Moreover, the effect of pin-fin location on the heat transfer characteristic in the rectangular passage has also been investigated.