EVALUATION OF THE SACRIFICIAL ANODE CATHODIC PROTECTION OF CARBON STEEL IN 0.5M NACL USING EXPERIMENTAL DESIGN
محتوى المقالة الرئيسي
الملخص
This study examined the effect of Temperature (T); flow rate(F); and pH ; on the zinc consumption as sacrificial anode in cathodic protection of steel pipe carrying saline solution (i.e., 0.5 M NaCl) using a 23 factorial design. Rates of zinc consumption during cathodic protection were measured by weight loss technique and it ranges from 7.5x10-3 to 98.9x10-3 g/cm2.day. For the system under investigation, the cell responsible for cathodic protection is Zn/NaCl/Fe .It was found that both temperature and flow rate increases the zinc consumption while pH decreases it sharply.It was found also that the interaction between the temperature and pH
is the dominant term compared with other interactions.
تفاصيل المقالة
كيفية الاقتباس
تواريخ المنشور
المراجع
Armstrong N.A, James K.C.,(1990) "Understanding experimental design and interpretation in Pharmaceuticals", England: Ellis Harwood Ltd;:27-54.
Bolton S.,(1984) "Pharmaceutical Statistics: practical and clinical applications,". 3rd ed. Marcel Dekker Ins;, New York: 258-280.
Box. M.J., Hunter W.G, Hunter JS.. (1978)"Statistics for experimenters : An introduction to design data analysis and model building, New York, : John Wiley and Sons.
Davies, K.G.(2003), "Cathodic protection in practice"., internet site www.npl.co.uk.25/10/2007.
Khalid, W.H.,(2006)" Cathodic protection of low carbon steel in seawater" Ph.D thesis, university of Baghdad, .
Myres MH.,(1971)" Response surface methodology", Boston: Allyn and Bacon.
Ulig, H.H.(2000) ," Corrosion handbook", edited by Winston R.R., 2nd edition, John – Wily and Sons