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1- Engine Department, Chabahar Maritime University, Chabahar, Iran
Abstract: (17 Views)
Engine emissions present significant challenges to the environment, prompting decision-makers in the shipping industry to prioritize reductions in pollutants. The installation of exhaust gas cleaning systems (EGCS) or scrubbers in ship exhausts offers a practical solution for aligning with the regulations set by the International Maritime Organization (IMO). The current study investigates this technology through an examination of scrubber types and their associated environmental regulations. The primary focus of these laws and regulations revolves around the emission of pollutants like sulfur, carbon, and particulate matter. Addressing this concern, the IMO mandated the use of fuels containing less than 0.5% sulfur content starting from January 1, 2020. Scrubbers come in three main types – closed, open, and combined – where washing water is utilized to reduce sulfur emissions by cleansing exhaust gases. Proper disposal of the wash water waste is crucial, leading to stringent regulatory measures. The closed system, which involves collecting and treating wastewater at ports, is deemed the most environmentally-friendly option and is recommended. By employing scrubbers, ships can effectively decrease sulfur emissions and opt for cost-efficient fuels with higher sulfur content. Research findings indicate that within the initial five years of installation, 95% of scrubber-equipped vessels achieve an economic breakeven point. Nevertheless, the cost of marine environmental degradation resulting from the discharge of open-loop scrubber washwater in the Baltic Sea (2014–2022) amounted to 680 million euros (€2019). An alternative to scrubbers is the use of fuels with very low sulfur content, which, however, come at a significantly higher cost.
Keywords: Exhaust gas cleaning system, MARPOL Convention, Marine pollution standards, Sulfur emissions, International Maritime Organization
Type of Study: Research Paper |
Subject:
Main Engine & Electrical Equipments
Received: 2025/09/18 | Accepted: 2026/11/1
Received: 2025/09/18 | Accepted: 2026/11/1
فایل صوتی چکیده مقاله [MP3 2994 KB] (2 Download)
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