ExxonMobil brings mass flow metering to Hong Kong

The fuel delivery system can help save vessel operators up to an estimated three hours (compared to manual tank dipping) and US$5,000 per refuelling. It also adds greater transparency and efficiency to the bunkering process.

The company’s estimated cost saving is based on a 1,000 tonne delivery at US$300/tonne. ExxonMobil noted that a temperature measurement delta of 10°C can amount for up to US$2,100, while a 3kg/m³ density difference can amount to US$1,000. A secure mass flow metering system can eliminate those differences, therefore negating the need for a quantity surveyor, which can cost up to US$2,000.

The Hong Kong MFMS has been accredited by Lloyd’s Register in partnership with A*STAR’s National Metrology Centre, the national measurement institute of Singapore, and Metcore International, a consultancy with expertise in MFMS for bunkering. The technology directly measures fuel mass instead of volume, in line with industry best practice guidelines, to provide a prompt and accurate measurement reading for vessel operators. The seals used are also validated by independent parties to prevent any misuse of the system.

The MFMS provides multiple benefits for vessel operators, suppliers and regulatory bodies, including enhanced accuracy when compared to typical tank dipping – within 0.5% – increased efficiency by measuring fuel mass, and reduced uncertainties related to variables including density and temperature. The MFMS has been installed on the time chartered bunker vessel, Anshing, to deliver bunker fuel oil of ISO 8217:2012 grades for RMG 380 and RMK 500.

“The expansion of ExxonMobil’s accredited mass flow metering system capability will help to ensure buyers receive the fuel they pay for,” said Deepankar Banerjee, Asia Pacific marine fuels sales manager. “ExxonMobil continues to lead the industry in the implementation of mass flow metering systems, bringing an accredited system to Hong Kong after its success in Singapore.”

The launch of an accredited MFMS in Hong Kong follows its introduction in Singapore, where ExxonMobil was the first to market with a Maritime and Port Authority (MPA) approved MFMS. It was also the first to guarantee delivery by MFMS, and the first to deliver more than one million metric tonnes using the system. Today, all ExxonMobil fuel deliveries in Singapore are supplied by barges equipped with the MPA-certified MFMS.

Douglas Raitt, regional consultancy manager, Lloyd’s Register, commented: “Getting bunkering right is more important than ever. The use of mass flow metering systems when bunkering fuel is a significant improvement, ensuring compliance. Buyers now have peace of mind that they are receiving the correct quantity of fuel for which they are paying.”