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All Journal Jurnal Sains dan Teknologi Jurnal Transportasi dan Manajemen Maritim (TRANSMA)
Rahman Raising
Politeknik Maritim AMI Makassar (POLIMARIM)
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Peningkatan Keterampilan Anak  Buah Kapal Dalam Keselamatan Pelayaran di Kapal KM. Thalia Rahman Raising; Rusnaedi; Ratnawati Raising; Sudarman
JURNAL TRANSMA Vol 2 No 1 (2026): Jurnal Transportasi dan Manajemen Maritim (TRANSMA)
Publisher : Politeknik bumi Akpelni

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.6425/fv1sbp16

Abstract

   Maritime safety on passenger ships is highly dependent on the readiness and skills of crew members (ABK) in implementing procedures, communicating effectively, and responding to emergencies quickly and correctly. This study aims to analyze the crew’s initial skill levels, identify factors contributing to ineffective safety drills, and formulate strategies to improve safety-related skills on KM. Thalia. A qualitative descriptive case-study method was employed through direct observation, interviews/communication with key informants, and document and maritime-safety literature review. The findings indicate a gap between expected procedures and actual practice during fire drills: the crew’s initial response was slow, muster time at the muster station exceeded the 5-minute target, understanding of assigned duties based on the muster list was uneven, and technical proficiency in using fireman outfits and breathing apparatus was inconsistent within the required drill timeframe. Key contributing factors include irregular drills, limited voyage time and weather constraints, suboptimal leadership motivation and supervision, varied crew experience levels, and inadequate maintenance of firefighting equipment. The study concludes that improving crew skills is most effectively achieved by strengthening both the frequency and quality of scheduled drills, supported by active safety leadership to build discipline, communication, and a safety culture onboard.
Analisis Optimasi Manajemen Termal dan Efisiensi Konsumsi Bahan Bakar pada Transportasi Muatan Asphalt 60/70: Studi Kasus MT LG Asphalt 2 Rahman Raising; Rusnaedi Rusnaedi; Ratnawati Raising; Sudarman Sudarman
INSOLOGI: Jurnal Sains dan Teknologi Vol. 5 No. 2 (2026): April 2026
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v5i2.7161

Abstract

This study analyses the operational strategy for controlling the temperature of asphalt 60/70 cargo on the asphalt tanker MT LG Asphalt 2 during an eight-day voyage from Sungai Udang (Melaka) to Anggrek (Gorontalo Utara). Temperature control is critical to maintain cargo pumpability, product quality, energy efficiency, and operational safety. The research adopts a single case study with a descriptive–quantitative approach. Cargo temperature data were collected every 24 hours and combined with boiler operation records to formulate four basic heating actions (no heating, one boiler, two boilers 24 h, two boilers 48 h). These actions were then arranged into eleven heating strategies for an eight-day voyage. For each strategy, the final average cargo temperature and total fuel consumption (LSMGO/LSMFO) were calculated and compared with the voyage instruction requirement of 135–140 °C at discharge. The results show that no heating causes a temperature drop of about 3 °C/day, whereas continuous operation of two boilers is energy intensive. Among the eleven models, Strategy No. 11 (A–0–C–A–C–0–A–A) is the most optimal, achieving a final temperature of about 140 °C with moderate fuel use. The study recommends an intermittent, data-driven heating pattern as a practical basis for standard operating procedures on asphalt tankers.
Pengaruh Penambahan Kapur Barus pada Bahan Bakar Bensin terhadap Prestasi dan Emisi Mesin Bensin Rahmat Hidayat; Suyuti Suyuti; Barokah Barokah; Rahman Raising
INSOLOGI: Jurnal Sains dan Teknologi Vol. 5 No. 4 (2026): Agustus 2026
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v5i4.9193

Abstract

This study aims to analyze the effect of adding camphor or naphthalene to gasoline on the performance and exhaust emissions of a gasoline engine. An experimental method was applied using a single-cylinder, four-stroke Enduro XL gasoline engine with camphor concentrations of 0%, 5%, 10%, 20%, and 30%. Tests were conducted at engine speeds of 1,200, 1,400, 1,600, 1,800, and 2,000 rpm. The parameters analyzed included calorific value, fuel density, effective shaft power, fuel consumption, thermal efficiency, exhaust gas temperature, and carbon monoxide emissions. The results showed that increasing the camphor concentration reduced the fuel calorific value from 12,347 kcal/kg to 6,306 kcal/kg and increased the density from 750 kg/m³ to 780 kg/m³. The addition of camphor tended to increase effective shaft power and reduce measured fuel consumption. However, carbon monoxide emissions increased significantly, particularly at camphor concentrations of 20–30% and at low engine speeds. At 1,200 rpm, CO emissions increased from 0.7% for pure gasoline to 8.7% for the 30% camphor mixture. Therefore, camphor addition creates a trade-off between improved engine performance and deteriorating exhaust emission quality. High camphor concentrations are not recommended, while concentrations of 5–10% require further testing to assess their technical effectiveness, environmental impact, and long-term effects on engine components.
Co-Authors Barokah Rahmat Hidayat Ratnawati Raising Ratnawati Raising Rusnaedi Rusnaedi Rusnaedi Sudarman Sudarman Sudarman Suyuti Suyuti