Optimum Effect of Factors Influencing on Sacrificial Cathodic Protection for Steel Wall

Abstract

The Box-Behnken Design (BBD) is used to model the sacrificial CathodicProtection System (SCPS) to find the factors effectiveness behaviour. For protectionpotential assessment the BBD receives (resistivity of environment, sacrificial anodealloy, distance between anode and cathode and surface area for the structure to beprotected) as input and gives the protection potential as output. By applying BBDwith their analysis tools we get many results. The important results which are thefactors individual effectiveness on the sacrificial cathodic protection (SCP) processare the resistivity which has the greatest effect on the potential protection (rank=1)followed by sacrificial anode alloy type (rank=2), surface area for structure protectedrequired (rank=3) and distance between anode and cathode (rank=4). The interactionof sacrificial anode alloy and cathode area (χ2χ4) has significant effect on CP processwith the limits which are used in this work while the other factors interaction (χ1χ2,χ1χ3, χ1χ4,χ2χ3, χ3χ4) has insignificant effect on the limits which used in this work.