• oceanjava.com
Kamis, 01 November 2018 - 06:58:18 WIB
Alfa Laval introduces BWTS deckhouse solution for MRs
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Kategori: Marine Technolgy - Dibaca: 163 kali

A new Alfa Laval PureBallast 3 Ex deckhouse solution has been validated for product tankers
fitted with Framo ballast pumps.

The solution allows Alfa Laval PureBallast3 Ex to be installed on deck  without any changes to the ballast pumping system on board. Modernproduct tankers use submersible ballast pumps to eliminate the need for aballast pump room thus creating more space for cargo.

This means their ballast watertreatment systems (BWTS) is often installed in a deckhouse. However, the filterbackflushing sequence may require water pressure in excess of availablepressures from todays marketstandard ballast pump design. The situation is aCatch-22 for owners of product tankers, who may have to alter a functioning pumping system to support ballast water treatment, said Anders Lindmark, headof Alfa Laval PureBallast. Working together, the technical teams for Framopumping systems and Alfa Laval ballast water treatment systems have developed adeckhouse solution that removes this headache. The new deckhouse solutionincorporates a booster pump unit into the PureBallast 3 Ex system, as well asother modifications to increase backflushing pressure. 

The modifications ensurethat sufficient backflushing pressure will be generated by the BWTS itself. Reviewedby DNV GL, the solution has been validated at the Framo pump testing facility foruse on product tankers with Framo ballast pumps installed. Because themodifications fall within the current US Coast Guard type approval and revisedIMO G8 certificate for PureBallast 3 Ex, no additional certifications arenecessary when fitting the system. The deckhouse module includes not only thePureBallast 3 Ex system, but also HVAC, lighting and all necessary pipeworkwithin the deckhouse. With a complete deckhouse solution that is validatedfrom both pumping and ballast water treatment perspectives, we have a fullanswer to the needs of product tankers,

Lindmark claimed. Alfa Lavalsimproved BWTS systems for large vessels, including tankers, will be highlightedin the November/December issue of Tanker Operator magazine. Turning to the 2020low sulfur cap, at a presentation at SMM last month, Alfa Laval?s SerdarSengun, Global Sales Manager Marine


Separation, claimed the companyhad a unique depth of expertise in marine fuel treatment, encompassing not justfuel separators but the whole chain from bunker tank to engine. As on boardoperations change in response to the fuel sulfur regulations, the company is optimisingand updating the technologies in its portfolio to meet the new challenges. The resultwill be improved engine protection and increased energy efficiency, despitemore varied and less predictable fuels.

With the forthcoming globalsulfur cap, on board fuel handling will become more complicated than everbefore. There will be many options for compliance and every vessel will haveto choose the route that makes most sense for their operation, Sengunexplained. No matter what customers choose, it will have dramatic implicationsfor the fuel line. But Alfa Laval is taking a complete and forward-thinking approachto fuel line optimisation. More complexity A number of new fuels and fuelblends have already entered the market, and more are likely to appear once theglobal sulfur cap is in place. For many fleets, 2020 will also mean going fromexisting single-fuel systems to multi-fuel operations. If not managed properly,using multiple fuel oils can result in a variety of issues especially when thefuels are unfamiliar. The problems can range from clogged fuel systems to, inthe worst case, engine stoppage. As refineries recalibrate for lower sulfur content,we also anticipate a continued increase in the proportion of cat fines inmarine fuel

oils, Sengun warned. Already, we have seen a huge rise in cat fines, which cause major problems if notseparated from the fuel before it reaches the engine. Meeting the challengesof more varied fuels will affect the fuel line as a whole. Centrifugalseparators, which are the primary defence against cat fines, will need toperform at different capacities and with new levels of efficiency. Fuel conditioningsystems will need to handle fuels with more widely differing properties, usingembedded automation to avoid handling mistakes and perform safe changeover withinthe required engine parameters. Matching the separator feed to engine load iscritical to achieving the highest efficiency and engine protection, as fieldtests have

clearly shown, said Sengun.After separation, matching the fuel to the makers specifications is critical forthe engine, its injection systems and the safety of the vessel. All of theseprocesses have to occur smoothly and safely, no matter what fuel is used. Aswell as introducing improved touchscreen control for the Alfa Laval fuel line,the company will optimise and update key equipment within it prior to theglobal sulfur cap. This includes Alfa Laval FlowSync, the companys solution forautomatically adjusting the separator feed, as well as the Alfa Laval FCM OneOil. Launched in 2014 and already capable of advanced fuel changeover andmanaging up four different fuels, the FCM One Oil will be released in a newversion by the end of 2018. source: www.tankeroperator.com