Analisis Risiko Jalur Pipa Gas Alam pada PT. Perusahaan Gas Negara Tbk. dengan Menggunakan Metode Risk Based Inspection Semi Kuantitatif

Tsabita, Nahla (2024) Analisis Risiko Jalur Pipa Gas Alam pada PT. Perusahaan Gas Negara Tbk. dengan Menggunakan Metode Risk Based Inspection Semi Kuantitatif. Diploma thesis, Institut Teknologi Sepuluh Nopember.

Text 2039201060_Undergraduate Thesis for D4 Program.pdf - Accepted Version Restricted to Repository staff only until 1 October 2026. Download (4MB) | Request a copy

Abstract

NACE (National Association of Corrosion Engineering) mendefinisikan bahwa korosi adalah “proses pembusukan suatu bahan, biasanya metal atau proses perubahan sifat suatu bahan akibat pengaruh atau reaksi dengan lingkungan sekitar”. Korosi atau karat terjadi secara terus menerus tanpa mau berhenti. Apabila tidak ditangani dengan baik, maka akan menyebabkan beberapa kerugian meliputi Supply gas shut down, citra perusahaan menurun, nilai saham menurun, serta tingkat keselamatan rendah. Untuk meminimalkan bahaya tersebut diperlukan suatu langkah pencegahan agar alat tersebut dapat selalu beroperasi dengan aman. Salah satunya adalah dengan menerapkan Risk Based Inspection (RBI) pada alat tersebut. Risk Based Inspection (RBI) adalah metode yang menjadikan resiko sebagai dasaran dalam menentukan rencana atau program inspeksinya. Untuk mendapatkan nilai resiko tersebut diperlukan beberapa data dan perhitungan dengan mengacu pada API 581. Penelitian ini dilakukan untuk mengetahui tingkat risiko pada pipa API 5L grade B yang berlokasi di Aloha, Maspion I Alumindo dan Maspion I Sawotrarap. Dengan variasi pipa 4” pada Maspion I Sawotratap, 6” pada Aloha dan 8” pada Maspion I Alumindo. Setelah dilakukan analisis, didapatkan bahwa nilai risiko dari ketiga pipa tersebut adalah 1A - very low risk. Dan untuk hasil dari rancangan metode inspeksi yang dihasilkan adalah visual examination, follow up at locally thinned areas, coverage of the CML’s using untrasonic or profile radiography, serta visual inspection of >30% of the exposed surface area with follow-up by UT, RT or pit gauge as required. Sedangkan pada penjadwalan inspeksinya perlu diadakan inspeksi lagi pada 2 dan 10 tahun mendatang.

=====================================================

NACE (National Association of Corrosion Engineering) defines that corrosion is "the process of decay of a material, usually metal or the process of changing the properties of a material due to influence or reaction with the surrounding environment". Corrosion or rust occurs continuously without wanting to stop. If not handled properly, it will cause several losses including Supply gas shut down, decreased company image, decreased stock value, and low safety level. To minimize this danger, a preventive measure is needed so that the tool can always operate safely. One of them is by implementing Risk Based Inspection (RBI) on the tool. Risk Based Inspection (RBI) is a method that makes risk the basis for determining the inspection plan or program. To get the risk value, some data and calculations are needed with reference to API 581. This study was conducted to determine the level of risk in API 5L grade B pipes located in Aloha, Maspion I Alumindo and Maspion I Sawotrarap. With pipe variations of 4 "at Maspion I Sawotratap, 6" at Aloha and 8" at Maspion I Alumindo. After analysis, it was found that the risk value of the three pipes was 1A - very low risk. And for the results of the inspection method design produced are visual examination, follow-up at locally thinned areas, coverage of the CML's using untrasonic or profile radiography, and visual inspection of >30% of the exposed surface area with follow-up by UT, RT or pit gauge as required. Meanwhile, the inspection scheduling needs to be conducted again in the next 2 and 10 years.

Item Type:	Thesis (Diploma)
Uncontrolled Keywords:	Korosi, Piping, RBI, Risk Based Inspection,Corrosion.
Subjects:	T Technology > T Technology (General) > T174.5 Technology--Risk assessment.
Divisions:	Faculty of Vocational > Mechanical Industrial Engineering (D4)
Depositing User:	Nahla Tsabita
Date Deposited:	02 Aug 2024 06:10
Last Modified:	02 Aug 2024 06:10
URI:	http://repository.its.ac.id/id/eprint/110672

Actions (login required)

View Item