Underwater PBCF Installations Bring Fuel Savings

Posted by Michelle Howard
Tuesday, November 26, 2013

Last month Hydrex installed  Propeller Boss Cap Fins (PBCF) on two tankers during their respective stops in Ghent and Antwerp. As a result of the underwater operation, the ships will not have to wait for their next drydock visit to start benefitting from the fuel savings the PBCF’s will bring them.

The Propeller Boss Cap Fins (PBCF) is a device for propeller efficiency improvement developed by Mitsui O. S. K. Lines, Ltd. The PBCF can recover energy loss of a propeller hub vortex in the propeller’s backward flow. This decreases fuel consumption by 5% when operating at the same speed, or boosts speed by 2% with the same fuel consumption.

The 5% energy saving effect has been verified by world research institutes including International Towing Tank Conferences (ITTC) and by owners.

With the current emphasis on global environment problems, the demand for the PBCF has been continually growing and this as an energy saving device and an environment-friendly product because it realizes a 5% reduction in CO2, NOx and SOx gases emission from vessels.

The first operation was performed on a 183-meter tanker berthed in Ghent. After the team arrived at the vessel’s location with one of the Hydrex workboats, they started the operation with a full inspection of the propeller. Next the diver/technicians cleaned the area where the spinner cone (PBCF) was to be installed. They then lowered the cone into the water and positioned it on the propeller. When this was done, grease was inserted in the space underneath the propeller cone for lubrication and the bolts were put on torque and secured with wire, finishing the replacement of the PBCF. The Hydrex team worked around the clock to finish the operation as quickly as possible.

The exact same procedure was used during the operation in Antwerp on a 130-meter tanker. The alignment of both Propeller Boss Cap Fins was monitored on an underwater video camera and supervised by the manufacturer’s specialist on the workboat.

Last year Hydrex had already replaced two PBCF’s on a 110-meter tanker in Singapore. This was the first underwater installation of a PBCF, according to the manufacturer.

By performing the operation on-site and underwater, the owner of both tankers could immediately start enjoying the fuel savings the system offers. Otherwise he would have had to wait for the next scheduled drydocking before having the PBCF’s installed. This would have cost him up to two years of savings. Calculations show that he will have earned back the money of the underwater installation in about eight weeks, so the savings for the customer are enormous

Maritime Today


The Maritime Industry's original and most viewed E-News Service

Maritime Reporter January 2016 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

People & Company News

Next Generation Marine Power & Propulsion Conference

The Next Generation Marine Power & Propulsion Conference will be held at the Grand Harbour Hotel, Southampton, U.K. from April 26 to 28, 2016.    This unique

Port of Hamburg Reports Bulk Cargo Jump in 2015

The Port of Hamburg reports higher bulk cargo throughput and strong growth in rail and inland waterway seaport-hinterland traffic in 2015 – downturn in container handling.

Hapag-Lloyd Buys 2 Ships for S.America Trade

Acquisition of two modern wide-beam vessels for first deployment in the South American business; two more identical ships chartered; four efficient wide-beam vessels

Marine Propulsion

Next Generation Marine Power & Propulsion Conference

The Next Generation Marine Power & Propulsion Conference will be held at the Grand Harbour Hotel, Southampton, U.K. from April 26 to 28, 2016.    This unique

Indonesian Navy Orders MAN Engine for Training Ship

MAN Diesel & Turbo has received an order for an MAN 6L21/31 engine to power a newbuilding cadet training sailing ship for the Defence Ministry of the Republic of Indonesia.

Caterpillar Names Official Dealer for Cuba

Caterpillar Inc. has named privately owned Puerto Rico-based company Rimco as the official Cat dealer for Cuba. Rimco, a longtime Cat partner, currently serves

Ship Repair & Conversion

Beacon Finland Appoints Rio Marine for US Support

Beacon Finland, a maritime-related firm engaged in naval architecture, marine engineering and equipment, has appointed Rio Marine to service its JAK-ATB coupling systems in the U.

Noncompliant Cargo Ship Banned from Australia

The 86-meter general cargo ship Noah Satu has been prohibited from entering or using any Australian ports for the second time in less than 12 months, following another round of safety,

‘Choice Alliance’ Formed to Serve BWT Market

A strategic alliance between Choice Ballast Solutions and Drew Marine has been formed to provide vertically integrated capabilities within the ballast water treatment (BWT) market.

Tanker Trends

Top 10 Shipowning Nations by Value

VesselsValue has provided a list ranking the top shipowning nations by value, including the percentage change difference against 2015 figures. Although the

2016 a Busy Year for VLCC Deliveries - BIMCO

When it comes to delivering brand new VLCCs from shipyards in South Korea and China to owners and investor across the globe, 2016 is off to a flying start. Six

U.S. Okays ConocoPhillips Alaska LNG Exports

The U.S. Department of Energy approved ConocoPhillips' application to export about 40 billion cubic feet of natural gas from its Kenai liquefied natural gas export

Fuels & Lubes

GTT, DSME Partner for NO96 Max Development

GTT signs a cooperation agreement with Daewoo Shipbuilding & Marine Engineering aiming at the industrialization of its NO96 Max technology   GTT, a designer of

Wärtsilä Supporting Japan's 'Gas Age' Shipping

A total of 16 new gas carrier ships being built in Japan for Japanese owners are to be powered by Wärtsilä dual-fuel engines capable of running on liquefied natural

Parker Bestobell to Supply Valves for FSRU Newbuilds

Parker Bestobell Marine has recently completed a contract to supply cryogenic Globe and Check valves made in Sheffield, for Hoegh LNG’s series of five FSRUs (Floating

News

Proposed Changes to Long Island Sound Dredged Material Sites

The U.S. Environmental Protection Agency (EPA) is proposing to amend its 2005 rule that designated the Central and Western Long Island Sound Dredged Material Disposal Sites.

FSRU Golar Tundra Sold to Golar LNG Partners

Golar LNG Limited has entered into a purchase agreement to sell the Golar Tundra, a floating storage and regasification unit (FSRU), to Golar LNG Partners LP for a sale price of $330 million.

Top 10 Shipowning Nations by Value

VesselsValue has provided a list ranking the top shipowning nations by value, including the percentage change difference against 2015 figures. Although the

Underwater Engineering

Aker Joins Johan Sverdrup Phase 2 Study

Aker Solutions will deliver a concept study on a new processing platform for future phases of the Statoil-operated Johan Sverdrup North Sea field, Norway's largest oil find in three decades.

I-Tech Gets Large Market Recognition of Selektope

Following the approval of Selektope under the EU’s Biocidal Products Regulation, developer I-Tech reports extraordinary uptake for antifouling coatings that include

JFD Wins Lifeboat Design Contract for Flash Tekk

JFD, part of James Fisher and Sons plc, announced that it has won a contract with Singaporean company Flash Tekk Engineering for the design and manufacture of up

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Security Maritime Standards Naval Architecture Pipelines Pod Propulsion Port Authority Ship Electronics Shipbuilding / Vessel Construction
rss | archive | history | articles | privacy | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.1191 sec (8 req/sec)