Author : Vikram Chavan and R. R.Arakerimath

The performance of fine-and-tube heat exchanger is enhanced by modifying fin shape to Wavy fin, fin angle and also material. The conventional resistance on air side is maximum up to 85% of total resistance. This resistance should be minimizing to enhance the heat transfer rate. Wavy fins are particularly attractive for their simplicity of manufacture and potential for enhanced thermal –hydraulic performance. Here performance of wavy-fin and tube heat exchanger is calculated for different temperature and wave angle. CFD analysis is taken for Wavy angle- 00, 100, 17.440. we get the maximum heat flux is 12227 w/m2 for fin angle 17.44 and water inlet temperature 700c. Heat flux increases with fin angle and also pressure loss increases. Maximum pressure loss is 1.80 Pascal for 17.440 fin angle , water inlet temperature 700c and air flow velocity 3 m/s . Here air inlet temperature (300c) is constant for all the model also water mass flow rate is constant (2.5 lit/hr.)

Keywords: Wavy fin; Wavy fin-and-tube heat exchanger; Wavy fin angle, CFD analysis;