Optimization of the Parameters Affecting the Heat Transfer Enhancement on the Solar Air Collector with Taguchi Method


JOURNAL OF POLYTECHNIC-POLITEKNIK DERGISI, vol.23, no.2, pp.527-535, 2020 (ESCI) identifier


In this study, Taguchi method was used to optimize the parameters that are related to the heat transfer (Nusselt number) of solar air collectors having different geometry fins on the absorber surface. Four different Reynolds numbers (Re=3150, 3800, 4400 ve 5000), two different fin types (Tip-I and Tip-II) and two different tilt angles (alpha=25 degrees and 40 degrees) were determined as test parameters. The effects of Reynolds number, collector tilt angle, and absorber surface flap type on heat transfer of the collector were investigated. The L8 (4(1)x2(2)) orthogonal test sequence obtained by using the Taguchi method was aimed to determine the optimum experimental sequence required for maximum heat transfer. The optimum experimental sequence for the highest Nu number was obtained as A(4)B(2)C(1) (Re = 5000, Type-II, alpha = 25 degrees). ANOVA method was used to analyze the effects of each experimental parameter on the heat transfer amount. The most effective parameter was Re number with 73.77% of the experimental results