TY - JOUR TI - Heat transfer analysis in counter flow shell and tube heat exchanger using of design of experiments AU - Perumal Sakthivel AU - Sundaresan Dinesh AU - Sivanraju Rajkumar AU - Tesfie Nega AU - Ramalingam Kamalakannan AU - Thanikodi Sathish JN - Thermal Science PY - 2022 VL - 26 IS - 2 SP - 843 EP - 848 PT - Article AB - In this research aimed to estimate the overall heat transfer coefficient of counter flow shell and tube heat exchanger. Heat transfer is the phenomenon to analysis of heat transfer from one medium of fluid to another medium of fluid, it is considered as a major role in industrial applications. Numerous heat exchangers are available, in this research considered as shell and tube heat exchanger. Overall heat transfer coefficient informed that three major factors are influenced as passing of fluid (film) media coefficient inside the tubes, circulating of fluid (film) media coefficient over in the shell, and the resistance of wall made on metal. In this study Taguchi L9 orthogonal array is executed to found the overall heat transfer coefficient with effective process parameters. Three major parameters are considered for this work are coil diameter (25 mm, 30 mm, and 35 mm), baffle thickness (15 mm, 20 mm, and 25 mm) and baffle gap (200 mm, 300 mm, and 400 mm. Baffle plate thickness is highly significant factor for this experiment.