Meeting EEXI Requirements With Proven Fuel Efficiency Solutions

Credits: David Clode/Unsplash

Aquametro Oil & Marine flowmeter technology and SHaPoli solutions support ship operators in complying with new IMO and EU environmental regulations. Accurate measurement and recording of fuel consumption data is becoming increasingly important for ship operators. As of 1 January, revised MRV regulations from IMO and the EU came into force, requiring ships to precisely monitor, report and verify their CO2 emissions, fuel consumption, transport work and average energy efficiency, reports Riviera.

Intelligent fuel monitoring systems

These reporting and tracking requirements are in addition to those mandated by other regulatory requirements outlined under IMO’s Energy Efficiency Design Index (EEDI), Energy Efficiency Existing Ship Index (EEXI), Ship Energy Efficiency Management Plan (SEEMP), Energy Efficiency Operational Index (EEOI) and Carbon Intensity Indicator (CII). 

To support compliance, intelligent fuel monitoring systems such as Aquametro Oil & Marine’s fuel performance system (FPS) can be used to collect fuel consumption data from sensors, bundle them into required reports and form the basis for fuel efficiency optimisation measures. 

While IMO details which data must be recorded and transmitted, the ship operator can choose the measuring principle with which the fuel consumption measurement is carried out. Among the measurement methods available to the operator are using bunker delivery notes, bunker tank monitoring or flowmeters. The operator must specify the measurement method when the data is transmitted. 

Flowmeters offer the most accurate and efficient method for measuring fuel consumption as per industry standards, points out Aquametro Oil & Marine. With over 75 years of experience in fuel oil metering technology, the company has installed more than 2.5M Aquametro Contoil fuel oil meters worldwide.  

Highly accurate and compact in design, the company’s Contoil flowmeters can provide fuel oil consumption data in mass as well as volume. 

With a wide portfolio of flowmeters, Aquametro Oil & Marine can address shipping’s future fuels, including methanol and liquid ammonia with its Domino product line.

Addressing EEXI 

EEXI, which came into force this year, must be calculated for all ships over 400 gt built before 2013. One of the most popular technical measures being deployed by ships to achieve their required EEXI is ship power limitation. One of the two main ship power limitation solutions is shaft power limitation (SHaPoLi). SHaPoli was developed to help ships limit their fuel consumption, and crucially their greenhouse gas emissions, by restricting the output power of the propeller shaft. 

To accomplish this, Aquametro Oil & Marine supplies a set of measurement and monitoring devices consisting of a shaft power meter including SHaPoLi-related software, an FPS and digital flowmeters. 

The shaft power meter is the key component for measuring ship performance and fuel and propulsion efficiency. Easy to install, the shaft power meter requires no electronic parts and operates contact-free.

The DNV-approved ShaPoLi-related features offered are according to MEPC 335 (76) (subject to case-by-case verification) and include: shaft power measurement devices to measure shaft rpm, torque and power, and data processing and recording of that information in unlimited mode; indication of shaft power limit exceedance; recording the use of a power reserve; and interfaces applicable for power limitation override alarm according to IACS Rec. 172, Sec. 6.6.

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Source: Riviera


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