Print ISSN: 1681-6900

Online ISSN: 2412-0758

Keywords : Sacrificial anode

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

Mohammad H. Hafiz; Wissam K. Hamdan; Saad E. Kaskah

Engineering and Technology Journal, 2012, Volume 30, Issue 18, Pages 3154-3163

The Box-Behnken Design (BBD) is used to model the sacrificial Cathodic
Protection System (SCPS) to find the factors effectiveness behaviour. For protection
potential assessment the BBD receives (resistivity of environment, sacrificial anode
alloy, distance between anode and cathode and surface area for the structure to be
protected) as input and gives the protection potential as output. By applying BBD
with their analysis tools we get many results. The important results which are the
factors individual effectiveness on the sacrificial cathodic protection (SCP) process
are 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 protected
required (rank=3) and distance between anode and cathode (rank=4). The interaction
of sacrificial anode alloy and cathode area (χ2χ4) has significant effect on CP process
with 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.