REVIEW OF NATURAL CONVECTION HEAT TRANSFER FROM DIFFERENT CONFIGURATION OF HORIZONTAL RECTANGULAR FIN ARRAYS

Fin arrays on horizontal and vertical surfaces are used in variety of engineering applications to diss ipate heat to the surroundings. Studies of heat transfer and flui d flow associated with such arrays are therefore of considerable engineering significance. The main controlling vari ables generally available to the designer are the o rientation and the geometry of the fin arrays. In case of shor t horizontal arrays,it is observed that the air en tering symmetrically from both the ends gets heated as it moves towards the Centre of the fin channel,as wel l as it rises due to decrease in density. So,the central portion of the fin becomes ineffective because hot air-str eam passes over that part and therefore it does not bring abou t large heat transfer. The purpose of the present s tudy is to investigate thoroughly the possibility of performan ce improvement of such arrays by providing a notch at the Centre and suggest for selection of optimum notch d imensions,and spacing by analyzing variety of fin Configuration. https://www.ijiert.org/paper-details?paper_id=14051