Analisa Pengaruh Salinitas Dan Temperatur Air Laut Terhadap Kebutuhan Arus Proteksi Dengan Sistem Proteksi Katodik Arus Paksa Pada Pipa Baja API 5L Grade B Di Lingkungan Simulated Ocean

Hanif, Abyan Kurnia (2018) Analisa Pengaruh Salinitas Dan Temperatur Air Laut Terhadap Kebutuhan Arus Proteksi Dengan Sistem Proteksi Katodik Arus Paksa Pada Pipa Baja API 5L Grade B Di Lingkungan Simulated Ocean. Undergraduate thesis, ITS.

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Abstract

Permasalahan yang sering dihadapi oleh pipa yang berada di lepas pantai adalah korosi. Untuk mengatasi permasalahan tersebut digunakan sistem proteksi katodik arus paksa (ICCP). Metode ini dipilih karena mudah dalam mengontrol arus proteksi yang diberikan ke sistem. Anoda yang digunakan dalam penelitian ini adalah grafit dan katoda yang digunakan adalah pipa baja API 5L grade B. Variasi konsentrasi garam dalam larutan adalah 3.2%, 3.5%, dan 3.8%. Variasi temperatur larutan adalah 30°C, 40°C, dan 50°C. Hasil penelitian ini menunjukkan bahwa semakin besar konsentrasi garam dan temperatur di dalam larutan maka semakin besar arus proteksi yang dibutuhkan oleh pipa. Hal ini diperkuat dengan data yang didapatkan yaitu arus proteksi tertinggi sebesar 1.38 mA dan terendah sebesar 1.16 mA. Selain itu, semakin tinggi temperatur larutan maka semakin tinggi pula arus proteksi yang dibutuhkan oleh pipa serta laju korosi juga didapatkan melalui pengujian weight loss. Dari hasil penelitian ini dapat disimpulkan bahwa peningkatan konsentrasi garam dan temperatur di dalam larutan berdampak signifikan terhadap kebutuhan arus proteksi pipa. =============== The problems oftenly dealt by pipe on the offshore application is corrosion. To solve the problems, Impressed Current Cathodic Protection (ICCP) is applied. This method is used since it is easy to control the flow of protection current protection delivered to the system. Anode used in this research was graphite model M120H and cathode used was a steel pipe API 5L grade B. Salt concentration was varied at 3.2 % , 3.5 % , and 3.8 % . Solution temperature was varied at 30°C, 40°C, and 50°C. Result of this research indicates that higher salt concentration and temperature in solution results in higher requirement of protection current. This was confirmed by the data that the higher required protection current was 1.38 mA. Meanwhile the lowest required protection current was 1.16 mA. This data is supported with the weight loss test for the corrosion rate that. It is then concluded that the higher salt concentration and solution temperature have significant impact on the demand of protection current.

Item Type: Thesis (Undergraduate)
Additional Information: RSMt 620.112 23 Han a
Uncontrolled Keywords: Proteksi Katodik Arus Paksa, Salinitas, Temperatur, Arus Proteksi, Impressed Current Cathodic Protection, Salinity, Temperatur, Protection Current
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TA Engineering (General). Civil engineering (General) > TA418.74 Corrosion and anti-corrosives
T Technology > TA Engineering (General). Civil engineering (General) > TA491 Metal coating.
T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Industrial Technology > Material & Metallurgical Engineering > (S1) Undergraduate Theses
Depositing User: Abyan Kurnia Hanif
Date Deposited: 28 Dec 2018 05:30
Last Modified: 28 Dec 2018 05:30
URI: http://repository.its.ac.id/id/eprint/53369

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