University of Khartoum

Using Cathodic Protection in Port-Sudan Depots and Service Stations to Protect Fuel Tanks from Corrosion

Using Cathodic Protection in Port-Sudan Depots and Service Stations to Protect Fuel Tanks from Corrosion

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Title: Using Cathodic Protection in Port-Sudan Depots and Service Stations to Protect Fuel Tanks from Corrosion
Author: Suleiman, Mohamed Yassir; Alsafi, Mahmoud Ahmed
Abstract: Cathodic protection is an electrochemical means of corrosion prevention techniques to ensure that the structure to be protected becomes the cathode of an electrotlytic cell. The purpose of present work is to design an impressed current cathodic protection system (ICCP) to protect 11 uncoated steel tanks partially buried in a soil with a resistivity of 600 ohm.cm with varying content temperatures and surface areas, located in Petronas Portsudan bulk depot (P.S.B.D.). A study was carried out to the previously installed system and it was found that it was faulty. The scope of work included the design and determination of all necessary materials of ICCP of tank bottoms utilizing Silicon cast iron anodes. The results showed that the cathodic protection system requires a total of 25 anodes with a 3.6 Amp current output per anode, distributed as shallow horizontal groundbeds according to the tank’s current demand. The groundbeds are located 3 meters deep and 3 meters away from the orifice from the specified tank. It was found that the design voltage is estimated to be 9V based on the highest voltage required and a total current of 45 Amps for the selection of the transformer rectifier.
URI: http://khartoumspace.uofk.edu/handle/123456789/17699
Date: 2015-08


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