Experimental Investigations on Different Surface Geometries of Finned Tube Air Cooled Heat Exchanger

Abstract

Heat exchanger is a device which transfers the energy from hot fluid to the cold fluid. The present study was performed on the finned tubes having fines of different pitch sizes. The objective of the present work was for evaluate the rate of heat transfer and the finned tube performance when water flowing in the tube is cooled by the air supplied with some velocity.
The performance was evaluated for the different air flow rates for the two finned tubes having different pitches. The performance of the tube is evaluated and compared.The different plots obtained from the data collected shows the variation of temperature, velocity and heat flow rates. The temperature of the air flowing over the tubes is also varied and the effect is observed which is shown in the graphical form in the report.