fuel

Environmental | General | Marine Fuels | Marine fuels and Bunkering

Mastering Fuel Management Strategies for Marine Engines in 2025: Balancing Cost, Compliance, and Sustainability
Bychiefengineerslog 5 September 20252 September 2025
In the complex and evolving maritime industry landscape of 2025, fuel management stands as one of the most critical pillars for operational success. Marine fuel expenses typically account for a significant portion of a vessel’s operational costs, often exceeding 50%. Meanwhile, the pressure to meet stringent environmental regulations like IMO’s decarbonization mandates and regional policies…
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Engineering News | Environmental

IMO Greenhouse Gas Emissions Update: New Rules for 2025 and What Ships Must Do
Bychiefengineerslog 7 August 20257 August 2025
In 2025, the International Maritime Organization mandates net-zero greenhouse gas emissions from international shipping by 2050. Key provisions include global fuel standards, an emissions pricing mechanism, and rewards for low-emission ships. Operators must strategically adapt by measuring emissions, planning for cleaner fuels, and updating fleet operations to ensure compliance and competitiveness.
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Engineering News

FOBAS Fuel Quality Report 2024: Key Insights for the Maritime Industry
Bychiefengineerslog 3 December 2024
Author: Daniel G. Teleoaca – Maritime Chief Engineer The FOBAS Fuel Quality Report 2024 by Lloyd’s Register provides an in-depth analysis of the current state of marine fuel quality and its implications for the maritime industry. This report, produced by the Fuel Oil Bunker Analysis and Advisory Service (FOBAS), highlights ongoing challenges in fuel quality,…
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Engineering News

Navigating a Greener Course: AI-Optimized Route Planning Revolutionizes Vessel Fuel Efficiency
Bychiefengineerslog 31 August 202330 August 2023
Date: August 31, 2023 By: Chief Engineer’s Log The maritime industry is steering toward a more sustainable future with the integration of cutting-edge artificial intelligence (AI) technologies into vessel operations. A groundbreaking development in marine engineering, AI-optimized route planning, is rapidly transforming the way ships navigate the seas, leading to unprecedented gains in fuel efficiency…
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Engineering News | Marine Fuels

Hydrogen Fuel Cells Revolutionize Maritime Industry: Green Propulsion Takes the Helm
Bychiefengineerslog 30 August 202330 August 2023
Date: August 30, 2023 By: Daniel G. Teleoaca – Marine Chief Engineer The maritime industry is experiencing a monumental shift as hydrogen fuel cells emerge as a game-changing technology, propelling vessels towards a more sustainable and environmentally friendly future. This revolutionary development is poised to reshape the way ships are powered, offering a cleaner alternative…
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Engineering News

Mitsubishi is poised to showcase its ammonia fuel handling system designed for maritime vessels.
Bychiefengineerslog 27 August 202330 August 2023
Date: August 27, 2023 By: Daniel G. Teleoaca – Marine Chief Engineer Mitsubishi Shipbuilding, a part of Mitsubishi Heavy Industries (MHI) Group, is developing a new system to support the use of ammonia as a marine fuel, which can significantly reduce greenhouse gas (GHG) emissions from ships. The system, called Mitsubishi Ammonia Supply and Safety…
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Auxiliary engines | Fuel injection system | Main engines

Marine Fuel Injector Valves – Ensuring Optimal Performance
Bychiefengineerslog 16 June 2023
Marine fuel injectors are critical components of an engine’s fuel delivery system, responsible for precisely atomizing fuel and delivering it to the combustion chamber. Over time, these injectors can become clogged, worn, or develop leaks, resulting in decreased engine performance, reduced fuel efficiency, and potential engine damage. In this blog article, we will explore the…
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Bunkering | Marine fuels and Bunkering

Bunker tank soundings and fuel quantity calculation
Bychiefengineerslog 9 July 202219 August 2025
A merchant ship’s design includes tanks for cargo and fuel, with a focus on maintaining stability through regular monitoring of fluid levels. Accurate tank soundings are crucial for bunkering operations to prevent financial losses due to malpractices. Manual and automated methods complement each other to ensure precise fuel measurements and optimal performance.
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Auxiliary engines | Auxiliary machineries | Main engines

Diesel injection system explained…
Bychiefengineerslog 4 July 2022
At all engine loads, the purpose of the diesel engine fuel system is to deliver the correct amount of fuel, at the correct time, to the correct cylinder in the required condition and as a result, the system must be capable of controlling the quantity, timing, period, and sequence of delivery. There must also be control…
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