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 Reporter April 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

People & Company News

Wärtsilä wins BWMS Order for 3 Vessels

Wärtsilä has received another important order for its Ballast Water Management Systems (BWMS). Three new container ships being built for a major European shipping

New MD for Glander Int'l Bunkering (India)

Glander International Bunkering is proud to announce that Ajay Menon has been appointed as the Managing Director of Glander International Bunkering (India) Private Limited.

First Damen Twin Axe for Offshore O&G

To develop its large fleet, Groen Offshore, Guard & Support has selected the first Damen Twin Axe Fast Crew Supplier 2610 to be customised with Offshore Oil & Gas standby capabilities.

Marine Propulsion

First Damen Twin Axe for Offshore O&G

To develop its large fleet, Groen Offshore, Guard & Support has selected the first Damen Twin Axe Fast Crew Supplier 2610 to be customised with Offshore Oil & Gas standby capabilities.

DuPont to Introduce Scrubber at Nor-Shipping

Belco Technologies Corporation (BELCO), a DuPont company, will introduce the DuPont Marine Scrubber (formerly the BELCO Marine Scrubber) at shipping and maritime exhibition Nor-Shipping in Oslo.

CAT’s New Dual Fuel Engine M 4G DF

At the beginning of 2015 the exhaust limit values for sulfur oxides (SOx) grew ever tighter in emission controlled areas. And with the start of 2016, nitrogen oxides

Ship Repair & Conversion

Bangladesh at Front of Shipbreaking Activity

There has been a firm level of ship demolition activity in the first four months of 2015 and the two largest owner regions, Asia/Pacific and Europe account for 88% of the tonnage sold for recycling,

Tsuneishi Seeks Foothold in Indonesian Shipyard Business

Japanese shipbuilding and maritime transport company Tsuneishi Holdings  has expressed a commitment to invest up to $40 million to open ship repair services in Indonesia, reports The Jakarta Globe.

UNOLS Seeks Fleet Improvement Committee Chair

The University-National Oceanographic Laboratory System (UNOLS) informs it is seeking nominations to fill a Fleet Improvement Committee (FIC) Chair position.   The position,

Tanker Trends

Tanker Demand Picks-up in Canada

Canada’s role in the oil industry has changed dramatically in recent years driven by synthetic crude oil production in the oil sands of Alberta.   New plans for Energy East,

Stena Sonangol Suezmax Pool Rings in 10 Years

Stena Sonangol Suezmax Pool celebrates 10 years of collaboration and trading.   The 10th anniversary celebrations took place in London on May 20. Today on May 26 it is Houston’s turn and,

Bahri Inks Contracts with Hyundai to Build 5 VLCCs

The National Shipping Co. of Saudi Arabia (Bahri) signed contracts on Thursday with Hyundai Samho Heavy Industries (HSHI) to build five very large crude carriers (VLCCs),

Fuels & Lubes

New MD for Glander Int'l Bunkering (India)

Glander International Bunkering is proud to announce that Ajay Menon has been appointed as the Managing Director of Glander International Bunkering (India) Private Limited.

CAT’s New Dual Fuel Engine M 4G DF

At the beginning of 2015 the exhaust limit values for sulfur oxides (SOx) grew ever tighter in emission controlled areas. And with the start of 2016, nitrogen oxides

Natural Gas Articulated Conduit System Patented

Elliott Bay Design Group (EBDG) announced that long-time partner Moran Towing Corporation has been granted US Patent 8,967,174 for "Articulated conduit systems

News

Wärtsilä wins BWMS Order for 3 Vessels

Wärtsilä has received another important order for its Ballast Water Management Systems (BWMS). Three new container ships being built for a major European shipping

New MD for Glander Int'l Bunkering (India)

Glander International Bunkering is proud to announce that Ajay Menon has been appointed as the Managing Director of Glander International Bunkering (India) Private Limited.

ARENA Funding Helps CSIRO set-up New Solar Lab.

CSIRO is set to increase confidence in large scale solar by more accurately predicting how different solar photovoltaic (PV) systems will perform on Australian shores.

Underwater Engineering

BMT Isis to Support NATO Submarine Rescue System

BMT Isis (BMT), a subsidiary of BMT Group Ltd, has announced that it will provide safety and environmental support for JFD’s five-year contract with the UK Ministry

Robotics Ocean Monitoring Alliance Formed in Africa

Blue Ocean Monitoring enters into strategic alliance with Sea Technology Services   Blue Ocean Monitoring (BOM) announced that it has entered a strategic business

Statoil Awards Hull Cleaning Contract to GAC

Eco-friendly HullWiper technology to fight fouling and enhance efficiency for oil and gas company fleet    GAC EnvironHull has signed a contract with the international

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Naval Architecture Offshore Oil Pod Propulsion Port Authority Salvage Ship Repair Ship Simulators Sonar
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: 0.2021 sec (5 req/sec)