Comparative Analysis of Cost and Durability of Sch 40 Galvanized Pipe and Sch 80 Black Pipe for Seachest Sea Water Systems KM. Pratiwi Indah
DOI:
https://doi.org/10.30649/japk.v16i2.208Keywords:
Corrosion, Remaining Life, Life Cycle Cost, Galvanized PipeAbstract
The seawater piping system on KM. Pratiwi Indah plays an important role in supporting ship operations; however, it is highly susceptible to damage due to the corrosive marine environment. This study aims to identify the causes of the seawater piping system replacement, compare the costs between galvanized pipe SCH 40 and black pipe SCH 80, and analyze the corrosion resistance of both pipe types. The research methods include the calculation of corrosion rate, remaining life, and Life Cycle Cost (LCC), supported by data presentation in tables and graphs. The analysis results indicate that the galvanized pipe has a corrosion rate of 0.35 mm/year with a remaining life of 15.14 years, while the black pipe has a corrosion rate of 0.53 mm/year with a remaining life of 16.41 years. Although the black pipe shows a slightly longer remaining life, the LCC calculation over a 30-year analysis period demonstrates that the galvanized pipe results in a lower total life cycle cost. Based on the technical and economic analysis, the galvanized SCH 40 pipe is recommended as the more optimal material for the seawater piping system on KM. Pratiwi Indah.
References
Hidayat, T., & Firmansyah, D. (2018). Analisis laju korosi baja karbon pada media air laut dan air payau. Jurnal Teknik Mesin, 7(2), 85–92.
Pratama, R., & Siregar, H. (2019). Analisis sistem pendingin mesin kapal berbasis air laut terhadap keandalan operasional. Jurnal Teknik Perkapalan, 8(1), 12–20.
Ramadhan, M., & Putra, A. (2021). Analisis life cycle cost pada sistem perawatan komponen kapal. Jurnal Rekayasa Sistem Industri, 10(3), 145–152.
Sari, D., Nugroho, S., & Wijayanto, A. (2020). Studi pengaruh korosi terhadap penurunan ketebalan pipa baja pada lingkungan laut. Jurnal Ilmiah Teknik Mesin, 9(1), 33–40.
Sumaryanto. (2013). Konsep dasar kapal. Jakarta: Kementrian Pendidikan dan Kebudayaan.
Supriyanto. (2007). Tugas Akhir. “Pengaruh Konsentrasi Larutan NaCl 2% dan 3,5% Terhadap Laju Korosi Pada Baja Karbon Rendah”. Universitas Muhammadiyah Surakarta, Surakarta.
BKI Part 1. Vol. III. Machinery Instalation. Biro Klasifikasi Indonesia.
BKI Part 1. Vol. V. Material. Biro Klasifikasi Indonesia.
ASTM International 2020
Marcus P., and Oudar J., (1995). Corrosion Mechanisms in Theory and Practice, Marcel Dekker Inc.
Sularso, Haruo Tahara. (2004). Pompa & Kompesor. Jakarta: PT. Pradnya Paramita.
Franky Yonantan. (2017). Analisa Laju Korosi pada Pipa Baja Karbon dan Pipa.
Fachrudin, T. D. Laju Korosi Pipa Galvanis (Inlet Desalinasi) pada Sea Chest Kapal terhadap Waktu dan Salinitas Air Laut. Jurnal Teknik Mesin, Vol. 5 No. 03 (2017). Meneliti nilai laju korosi pipa galvanis pada lingkungan air laut dengan variasi waktu dan salinitas.
Asmara, A. A. B. & Sakti, A. M. Analisa Proses Korosi Besi Safety Railing pada Material Pipa Besi SCH 40. Jurnal Rekayasa Mesin, 8(03), 192–197 (2023). Menganalisis proses korosi pada pipa baja SCH 40 akibat media korosif dan ketebalan pelapisnya.
Politeknik Ilmu Pelayaran Makassar, T. A. V. dkk. Analisis Pengaruh Kurangnya Ketebalan Pipa Air Laut Sanitary Terhadap Korosi di Kapal MT. BULL KANGEAN. Jurnal Karya Ilmiah Taruna Andromeda, Vol. 9 No. 1 (2025). Menilai dampak ketebalan pipa dan pH air laut terhadap korosi pipa kapal.
Santosa, A. W. B., Baskatara, R., & Mursid, O. Analisa Pengaruh Metode Hot Dip Galvanizing dengan Variasi Temperatur dan Waktu Pencelupan terhadap Laju Korosi Pipa Air Laut Kapal Material Baja AISI 1020. TEKNIK, Vol. 43 (2022). Membahas pengaruh proses hot-dip galvanizing pada laju korosi pipa baja di lingkungan air laut.
Maitimu, C. G., Loppies, L. S., Pellu, D. I., & Huka, G. I. Analisa Laju Korosi Pipa SCH 40 Seamless dengan Variasi Media Pengkorosian Air Payau dan Air Laut. Journal Mechanical Engineering, 2(2), 183–192 (2024). Penelitian korosi pipa SCH 40 pada berbagai media termasuk air laut.
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