Heat transfer coefficients on longitudinal finned surfaces.

Tests have been conducted to determine heat transfer coefficients on the surface of fins. The range of Reynolds numbers covered, based on the distance from hydrodynamic leading edge are 1.85 x 105 to 1.43 x 106. Expressions for heat transfer film coefficients based on experimental data have been obtained in terms of fin flow-channel centre-line velocity for the case of fins with a height of 1.5 inch, with spacings of 3/8, 1/2, 5/8 and 3/4 inch, using a film coefficient transducer designed specifically for this purpose