Study of Analysis, Design and Performance of Fin

Abstract

This paper discusses the use of extended surface heat transfer in heat exchangers. The size and cost of an exchanger is dependent upon the heat duty, the allowable pressure drop, and the geometry of the heat transfer area. The dominance of this resistance is often broken by the use of extended surfaces (fins), which will result in a lower area and hence smaller exchanger. This paper will consider which, if any, of the above performance indicators are the best. The main purpose of extended surfaces called fin is to increase the heat transfer rate Studies of heat transfer and fluid flow associated with such arrays are of considerable engineering significance. The main controlling variable generally available to designer is geometry of fin arrays. In a length wise short array where the single chimney flow pattern is present. The central portion of fin flat becomes ineffective because already heated air comes in its contact. The fin flats were modified by removing the central top fin portion by cutting a notch end found the rate of heat transfer is increased by having a notch at the centre top portion of fin. the inverted rectangular notched fin is compared with plane unnotched fin through experimental and computational analysis. In present manuscripts wok different shapes of inverted notched fin of constant surface area are analysed computationally and compare with the plane notched fin.