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All Journal Jurnal Elektronika dan Teknik Informatika Terapan
Rikky Leonard Rikky
Politeknik Perkapalan Negeri Surabaya
Computer Science & IT

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Analisis Pengendalian Kebutuhan Material Reparasi Sistem Flexible Ducting pada Ruang Akomodasi Kapal MT Musi Rikky Leonard Rikky; Ovi Prina Gastriani; Septaviola Dini Utami; Irkham Fatody Suryawan
Jurnal Elektronika dan Teknik Informatika Terapan ( JENTIK ) Vol. 4 No. 1 (2026): Maret: Jurnal Elektronika dan Teknik Informatika Terapan (JENTIK)
Publisher : Politeknik Kampar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59061/jentik.v4i1.1514

Abstract

This study analyzes material requirement control for the repair of insulated aluminum flexible ducting in the accommodation spaces of MT Musi. The objectives are to determine the required duct size and length, compare the planned requirement with actual field utilization, and formulate a controlled procurement approach for ship HVAC repair. A case study approach was employed by integrating damage inspection, general arrangement drawings, repair lists, room-dimension measurements, heat-load calculations using the Air Handling Unit Calculation method, duct-diameter selection, and verification of the actual material used. Heat loads were determined based on transmission, solar radiation through windows, lighting, equipment, occupants, and humidity control. The predominant forms of damage included joint leakage, deformation, and duct constriction caused by service age and the ship’s operating environment. The selected material was an 8-inch flexible duct, corresponding to an airflow requirement range of approximately 200–225 mm and the specifications stated in the repair list. The initial planned length across four decks was 34 m. After applying a 10% allowance, the requirement increased to 37.4 m and was rounded up to 38 m. Measurements of the removed ducting indicated an actual requirement of 36 m, resulting in a difference of 2 m or 5.56%. The integration of engineering calculations, route tracing, and field verification produced a more controlled procurement estimate while reducing the risks of material shortages and excessive waste.
Co-Authors Irkham Fatody Suryawan Ovi Prina Gastriani Septaviola Dini Utami