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All Journal Journal of Materials Exploration and Findings Blend Sains Jurnal Teknik
Sitompul, Lydia Kartika Basaria
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Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Root Cause Analysis of Leakage Tube Boiler: A Study Case Sitompul, Lydia Kartika Basaria; Priadi, Dedi
Journal of Materials Exploration and Findings Vol. 3, No. 2
Publisher : UI Scholars Hub

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Abstract

Oil and gas industry can have catastrophic implications for human life, the environment, and the economy. This paper investigated failure analysis using root cause analysis especially for boiler tube leakage of Heat Exchanger. Identify the issue using microscopic examination and energy dispersive x-ray analysis were conducted on the tube inside and outside surface to determine root cause of the failure. The formation of a protective film in the aluminum-brass tube during the starting stage is very important for ensuring adequate film protection throughout the service life of the heat exchanger. During this stage, exposure to unpolluted water is essential. The dezincification corrosion suggested the disruption of the formation of the protective films by the cooling water medium on the inner tube, The entrapped leaked fluid from the inner tube at the interface between the inner tube and outer tube resulted in secondary damage due to galvanic corrosion at conducive area.
Penilaian Sisa Umur Pakai pada Tangki Penimbun Sesuai dengan Laju Korosi Sitompul, Lydia Kartika Basaria; Navtalia, Zella; Rahmi, Hisni; Megasukma, Yosa; Seprizal, Muhammad Faisal
Blend Sains Jurnal Teknik Vol. 4 No. 4 (2026): Edisi April
Publisher : Ilmu Bersama Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56211/blendsains.v4i4.1300

Abstract

Tangki penyimpanan merupakan alat penting untuk menampung bahan bakar, bahan kimia, cair, dan air proses dalam operasi penambangan batu bara dan mineral. Penilaian sisa umur pakai (RLA) tangki ini penting untuk menjaga manajemen aset yang hemat biaya, kepatuhan lingkungan, dan keselamatan operasional. Penilaian metode terhadap sisa umur pakai tangki penyimpanan di fasilitas penambangan batu bara dan mineral merupakan tujuan utama studi ini. Pemeriksaan ini mengidentifikasi kehilangan material, integritas las, dan mode kegagalan tambahan seperti pitting, kelelahan, dan korosi di bawah isolasi (CUI) dengan menggabungkan uji non-destruktif (NDT), pemetaan korosi, pengukuran ketebalan ultrasonik, dan analisis tegangan. Temuan ini digabungkan dengan informasi desain dan catatan layanan untuk menentukan berapa lama tangki akan tetap berfungsi dan menyarankan rencana penggantian atau pemeliharaan. Untuk mencegah kegagalan katastropik, mengoptimalkan jadwal pemeliharaan, dan meningkatkan operasi penambangan yang berkelanjutan, hasilnya menyoroti deformasi yang ditemukan dan mekanisme kerusakan potensial seperti korosi atmosferik dan penipisan umum.
Co-Authors Dedi Supriadi Hisni Rahmi Muhammad Faisal Seprizal Yosa Megasukma Zella Navtalia