Route Spotlight:

George Schlinkert, AWT VP of Operations
Tuesday, March 12, 2013
The full track history of the storm can be seen in the image.

Avoid Costly Voyages with Eco-Steaming & Weather Routing.

 

In the recent financial climate, eco-steaming has proven to be profitable while also being good for the environment. However, a shipping company must always be aware of the prevailing weather situation in relation to their fleet.

 

This article deals with a ship's route options while approaching Typhoon Bopha in December, 2012. The suffering attributed to the passage of Bopha was well documented in the news around the world. This late-season typhoon set numerous records for strength and destruction.
 

In the case studied here, a bulk carrier was taking the normal route from Japan to Indonesia, passing south of Mindanao. The vessel was sailing at eco-speed to save fuel and reduce in CO2 emissions. However, Bopha formed ESE of the Philippines during late November.


AWT closely monitored the progress of this storm and developed close communication with clients whose vessel might be affected by the storm. In this instance, a discussion was initiated with regards to increasing speed, stopping, or course adjustments for storm avoidance.

 

Speed increases have some merit, but come at the cost of increased consumption. Additionally, speed adjustments may have limited benefits. A speed increase of 1 knot will only move a ship further along the track by 24 NM/day. It would take 2.5 days of such a speed increase to make 60NM (1 degree of latitude). The non-linear relationship between speed and consumption might increase consumption some 20%-25% for this 7-9% increase in speed.

 

After discussion, it was agreed to recommend that the captain take an alternate course via Surigao Strait in the Philippines, with the addition of only about 20NM. After ensuring sufficient charts were on-board, the master concurred with the recommendation and the harmful effects of the storm were avoided.

 

If the vessel had stayed on its original path, she would have encountered typhoon force northerly, backing west-southwesterly conditions passing east of Mindanao with significant wave heights greater than 15 meters along the direct route. The ship would have been caught directly west of the storm, with nowhere to turn, as discussed above. In the image below, one can see 10 + meter waves extending more than 1 degree further to the south, so the 1 knot speed increase for 2-3 days might have lessened the ship's exposure to the worst conditions, but still exposed the ship to waves exceeding 10 meters in height.

 

It is calculated that a negligible 1.7 MT fuel oil was added to what would have been consumed along the shortest route. Alternatively, had the speed of the ship been increased along the shortest route, it is calculated that higher speed would have been required for at least two full days, with additional consumption of perhaps 15 MT IFO.

 

Therefore, the close communication between AWT and the shipping company enabled the company to save about 9,000 USD in this instance while ensuring safety of ship and crew. Conversely, the vessel might have lost about 2 days waiting for storm passage.
 

Maritime Reporter September 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Finance

Pentair Reports 3Q 2014 Sales of $1.8 bi

Pentair plc today announced third quarter 2014 sales of $1.8 billion. Sales were up 3 percent compared to sales for the same period last year. Third quarter 2014

FortisBC Starts Expansion of Tilbury LNG Facility

FortisBC – a subsidiary of Fortis Inc. has officially started construction of its $400 million Tilbury LNG Facility expansion project today. The company is adding 1.

Weak Oil Threatens US Export of LNG

Plunging global oil prices may turn hopes for cheap liquefied natural gas supplies from the United States into a costly disappointment for Asian buyers who have

Environmental

Sunken Barge Salvage Stops Traffic on Chicago River

The U.S. Coast Guard said it is restricting vessel traffic on the Chicago River to allow for salvage of a sunken barge. All cargo has been removed from the sunken

Maritime Reporter @ 75: The Daily Cartoon

Maritime Reporter & Engineering News was founded by John J. O'Malley (1905-1980) in 1939, and today ranks as the world's largest audited trade publication in the world serving the maritime industry,

Renewable Energy: Schottel Tidal Turbines Ready For Use

In the last months Schottel  successfully tested its hydrokinetic turbines in Strangford Lough, Northern Ireland. The full-scale tests included 260 operating hours under realistic conditions.

Fuels & Lubes

LNG America, Buffalo Marine to Design LNG Bunker Fuel Network

LNG America announced it has entered an agreement with Buffalo Marine Service, Inc. (Buffalo Marine) to cooperate on the design of an LNG bunker fuel network for the U.

Maersk to Bump Asia-Europe Rates

Container shipping company Maersk Line, a unit of Danish conglomerate A.P. Moller-Maersk , plans to raise freight rates sharply on main routes from ports in Asia to ports in northern Europe,

Weathernews Opens Manila Operations Center

Filipino marine professionals employed to meet demand for service from the shipping industry Weathernews Inc. announced it has established a new operations center

Maritime Safety

GOST Security System thwarts Break-in

GOST® (Global Ocean Security Technologies), a world leader in vessel security, tracking, monitoring and video surveillance systems, announced today that its

USS Milius Departs on Deployment

The guided missile destroyer USS Milius (DDG 69) departed Naval Base San Diego Oct. 20 on an independent deployment to the Western Pacific and Indian Oceans.

Sunken Barge Salvage Stops Traffic on Chicago River

The U.S. Coast Guard said it is restricting vessel traffic on the Chicago River to allow for salvage of a sunken barge. All cargo has been removed from the sunken

Logistics

Long Beach Cargo Continues to Climb

Cargo container traffic rose 7.3 percent in September at the Port of Long Beach compared to the same month last year, making for the Southern California seaport’s busiest September since 2007,

Continership Alliance Expands to US Trades

The CKYHE Alliance (COSCO, "K" LINE, Yang Ming, Hanjin Shipping, and Evergreen Line) has announced they will expand their cooperation scope to U.S. Trades and CKYHE

New Intermodal Rail Service from PortMiami

Florida East Coast Railway (FECR) and PortMiami, through a strategic alliance, are offering the Sunshine Gateway service, which includes on-dock intermodal rail capabilities.

Consulting

Vice Presidents Rejig at Caterpillar Inc

Following the previous announcement regarding two group presidents’ retirements and new responsibilities for another group president, Caterpillar Inc. (NYSE: CAT)

Northrop Grumman Sponsors Maritime RobotX Challenge

Northrop Grumman Corporation is expanding its support for science, technology, engineering and math (STEM) education across the globe by sponsoring the Maritime RobotX Challenge in Singapore, Oct.

COWI NA Merges its Marine Companies

Ben C. Gerwick, Inc. and Ocean and Coastal Consultants, Inc. merger creates new player in the North American marine engineering market COWI North America, Inc.

Ocean Observation

Salamander Energy Updates on SONA Transaction

Salamander Energy said it has submitted a draft shareholder circular to the Financial Conduct Authority in relation to previously stated plans to divest of an interest in the Greater Bualuang Area.

Sea Level Rise ‘Worst Case Scenario’

A paper published this week in Environmental Research Letters by NOC scientist Dr. Svetlana Jevrejeva provides new information about the probability of a sea-level rise reaching of 180cm by 2100.

El Niño Could Kick Off in 1-2 months

The El Niño weather phenomenon is favored to occur in the next 1-2 months and last into next spring in the Northern Hemisphere, the Climate Prediction Center (CPC),

 
 
Maritime Careers / Shipboard Positions Maritime Security Maritime Standards Naval Architecture Navigation Pipelines Ship Repair Shipbuilding / Vessel Construction Sonar Winch
rss | archive | history | articles | privacy | terms and conditions | 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: 0.1574 sec (6 req/sec)