THE INFLUENCE OF SLOW STEAMING ON FUEL USAGE AND CARBON EMISSIONS OF CONTAINER SHIPS: A CASE STUDY OF THE SURABAYA-MAKASSAR ROUTE

SW Meiliana, H Syahab, AI Wulandari, IKAP Utama — Wed, 11 Sep 2024 00:00:00 +0000

The practice of slow steaming in maritime transport, initially introduced in the 1970s during the first oil crisis, has evolved into a strategy offering both cost reduction and environmental benefits. The overall combined costs for carriers and shippers experienced significant reductions with slow steaming, with extra slow steaming yielding even greater cost savings. While slow steaming is not the sole method to reduce fuel consumption and emissions, it proves to be the most efficient in terms of time and cost. Shipping operators globally recognize its advantages, as it aligns with environmental sustainability efforts by reducing greenhouse gas emissions. This study carried out a comprehensive exploration of the effects of slow steaming on container ships, focusing specifically on the Surabaya-Makassar route. The research aims to learn how much the impact of slow steaming on the ship operation. This study analyzes the impact of slow steaming on container ships in terms of fuel consumption and carbon emissions on the Surabaya-Makassar route. The lowest speed is 5 knots, and the highest speed is 11 knots. At a speed of 5 knots, fuel consumption decreases by 5% compared to the ship's speed at 11 knots. The same applies to the reduction in carbon emissions.

OVERBURDEN VOLUME CALCULATION USING CUT AND FILL METHOD AT RHML JOBSITE (RIUNG HARAPAN MITRA LESTARI) PT. RIUNG MITRA LESTARI, TAPIN REGENCY, SOUTH KALIMANTAN PROVINCE

Bagas Firman Maulana, Moch. Abdul Kholiq — Wed, 05 Mar 2025 00:00:00 +0000

Overburden is all layers of soil/rock that are above and directly cover the layer of valuable mining materials so that they need to be removed first before being able to dig up the valuable mining materials. In the process of removing overburden, its volume needs to be calculated. One method that is often used is the cut and fill calculation method. The cut and fill calculation method can be done using several software, including Surpac and Civil 3D. This study discusses the calculation of overburden volume based on data obtained from detailed topographic measurements of the situation at PT. Riung Mitra Lestari jobsite RHML located in Tapin Regency, South Kalimantan. This data consists of situation coordinate data from July 29 - August 21, 2024. The purpose of this report is to calculate overburden using Surpac and Civil 3D software. From the calculations, the overburden volume was obtained as much as 309,569 BCM in Surpac software and 310,548 BCM in Civil 3D software.

Journal of Marine-Earth Science and Technology

THE INFLUENCE OF SLOW STEAMING ON FUEL USAGE AND CARBON EMISSIONS OF CONTAINER SHIPS: A CASE STUDY OF THE SURABAYA-MAKASSAR ROUTE

OVERBURDEN VOLUME CALCULATION USING CUT AND FILL METHOD AT RHML JOBSITE (RIUNG HARAPAN MITRA LESTARI) PT. RIUNG MITRA LESTARI, TAPIN REGENCY, SOUTH KALIMANTAN PROVINCE