Experimental study on the heat transfer and resistance characteristics of pin-fin tube

Abstract

In order to obtain the influence of the structural parameters of the pin-fin tube on the heat transfer and resistance characteristics, ten different structural parameters of the pin-fin tube bundle were studied in this paper. The influence of the transverse pitch and the longitudinal pitch of the tube bundles, the transverse fin spacing and the height of the fin on the heat transfer and resistance characteristics of the pin-fin tube bundle were obtained, and the corresponding correlations were proposed. The results showed that the convection heat transfer coefficient and the flow resistance increased with the longitudinal pitch of the tube. The transverse fin spacing decreased, the heat transfer coefficient and the flow resistance increased. The change of the transverse pitch and the height of the pin-fin had little effect on the heat transfer and resistance performance of the tube bundles.