Article Per Year (5 Year)
p-Index From 2021 - 2026
0.408
P-Index
This Author published in this journals
All Journal Indonesian Journal of Innovation Science and Knowledge Venus: Jurnal Publikasi Rumpun Ilmu Teknik
Ahmad Wahid
Politeknik Ilmu Pelayaran Makassar
Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Social Sciences

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Analisis Pengujian Oily Water Separator Discharge Monitoring di Kapal MV. AL-SAMA Muh Qayyum Irwansyah; Ahmad Wahid; Muhammad Tri Pujiyanto
Indonesian Journal of Innovation Science and Knowledge Vol. 3 No. 4 (2026): IJISK 2026
Publisher : Fakultas Pendidikan Ilmu Keguruan, Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/ijisk.v3i4.1097

Abstract

Sistem discharge monitoring pada Oily Water Separator (OWS) menentukan apakah air bilga yang dibuang ke laut memenuhi batas 15 ppm MARPOL 73/78 Annex I. Penelitian ini bertujuan menganalisis faktor penyebab sistem discharge monitoring OWS di kapal MV. AL-SAMA tidak bekerja optimal, dampaknya terhadap pembuangan bilga dan kepatuhan kapal, serta upaya pengujian dan perawatan yang diperlukan. Metode yang digunakan adalah kualitatif deskriptif melalui observasi partisipatif, wawancara mendalam dengan perwira mesin, dan dokumentasi catatan PMS, Oil Record Book, serta buku petunjuk pabrikan. Hasil penelitian menunjukkan pembacaan Oil Content Monitor (OCM) berubah-ubah antara 20 ppm dan 15 ppm pada aliran konstan, sementara alarm 15 ppm tidak aktif saat simulasi pada 16 Juli 2025. Penyebab utamanya adalah sensor OCM yang tertutup endapan minyak dan belum dikalibrasi karena perawatan tidak mengikuti jadwal PMS, serta three-way solenoid valve yang plunger-nya macet akibat korosi internal dan endapan kotoran. Akibatnya, kadar minyak tidak dapat dipastikan, pembuangan bilga tertunda, bilge tank cepat penuh, dan kepatuhan terhadap batas 15 ppm sulit dibuktikan saat inspeksi Port State Control. Setelah perawatan, alarm kembali aktif pada pembacaan 20 ppm dan tidak aktif pada 15 ppm. Disarankan program perawatan terjadwal berupa zero check OCM sebelum pengoperasian, uji fungsi alarm dan solenoid valve setiap Saturday routine, pembersihan sensor bulanan, serta kalibrasi oleh teknisi pabrikan. Kegagalan sistem di kapal ini berakar pada perawatan yang tidak konsisten, sehingga temuan ini dapat menjadi acuan bagi masinis dalam menguji dan merawat OWS.
Analisis Dampak Gangguan Pendingin Mesin Induk terhadap Keselamatan Kapal Sigit Darmawan; Ahmad Wahid; Amran Amran
Venus: Jurnal Publikasi Rumpun Ilmu Teknik  Vol. 4 No. 5 (2026): Oktober: Venus: Jurnal Publikasi Rumpun Ilmu Teknik
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/venus.v4i5.1762

Abstract

The reliability of the main engine cooling system is essential for ensuring operational continuity and the safety of tugboats, which require rapid propulsion response. This study aims to analyze the causes of cooling system disturbances, their impacts on engine performance and vessel safety, and the corresponding corrective and preventive measures on the ASD Tug Ace Synergy. Data were collected through direct observation, structured interviews with shipboard personnel, and document and literature reviews. On 15 August 2025 in Johor, Malaysia, the jacket cooling water temperature of the port main engine increased from 82 85°C to approximately 96°C, while the seawater cooling pressure decreased from approximately 2.5 bar to 1.3 bar. The engine speed was reduced from approximately 1,500 RPM to 1,000 RPM before the engine was temporarily shut down. Inspection revealed that the seawater strainer was clogged with debris, mud, and marine materials. After cleaning, the pressure returned to 2.5 2.6 bar and the temperature decreased to 82 84°C. The findings indicate that strainer blockage reduces heat dissipation capacity and decreases propulsion and maneuvering availability. Preventive measures require strainer inspections based on operating conditions, reinforcement of the Planned Maintenance System (PMS), parameter trend monitoring, and improved coordination between the engine room and bridge.
Co-Authors Amran Amran Muh Qayyum Irwansyah Muhammad Tri Pujiyanto Sigit Darmawan