Ivan Stont, Energy Conservation Specialist, Stolt-Nielsen, and a contributor to the second edition of the International Chamber of Shipping (ICS) Publications’ ‘Engine Room Procedures Guide’, has been speaking about how following the guide’s recommendations can help shipowners save both emissions and money.
Stont said: “Having the Engine Room Procedures Guide on board will help the crew in many ways, from day-to-day activities to preparing for inspections and improving on existing procedures.”
Exhaust gas cleaning systems, (EGCS or scrubbers) are considered to be becoming more efficient, compact and more reliable year on year. The latest MEPC.340 (77) 2021 Guidelines for EGCS emphasise daily SO2/CO2 emission checks and improved monitoring and reporting tools. Additionally, studies support the positive impact of scrubbers, offering economic, not just ESG benefits, for shipowners.
Stont said: “Clearly, to ensure compliance, shipowners and operators must stay informed about the latest IMO and local regulations related to EGCS. Effective communication and coordination with port authorities and other stakeholders are crucial for the smooth operation of these systems. Technical performance is a key consideration, requiring EGCS to operate reliably under varying conditions, including fuel quality, engine load, seawater salinity, and ambient temperature. Compatibility with the ship’s design, power supply, and safety systems are also essential. The selection of the appropriate EGCS type and configuration, along with safe alkali bunkering, should be based on technical specifications, performance, and system compatibility. Regular testing, monitoring, and maintenance are necessary to ensure optimal functionality and efficiency.”
Stont continued: “Alkali bunkering [for treating scrubber wash water] is a more nuanced process involving both engine and deck departments, demanding strict adherence to safety protocols. The process of alkali bunkering execution presents complexities, where ensuring safety measures and compliance with stringent regulations becomes paramount. The potential environmental impact, particularly in altering pH levels in water, necessitates meticulous management to prevent adverse effects on aquatic life.”
Stont concludes that implementing EGCS requires multifaceted solutions, but well worth inveting time and money because srubbers not only reduce emissions but also are proven to improve overall vessel efficiency.
Similar considerations, according to Stont and ICS, apply to Ballast Water Management Systems (BWMS) where the BWM Convention outlines criteria for testing, surveying, certifying, and verifying ballast water management systems, along with discharge water quality standards. Crew training has emerged as a vital aspect of compliance.
Image: Ivan Stont, Energy Conservation Specialist, Stolt Tankers (credit: ICS)
