EMMF: Getting Heavy With Bunkers

Monday, May 05, 2003

Higher viscosity bunker fuels do not automatically contain more harmful elements than lighter ones, according to ExxonMobil Marine Fuels (EMMF), which has recently been supplying 500 centiStokes fuel in response to customer demand.

Emphasizing that quality and safety must be prime considerations with all fuel supplied, irrespective of viscosity, EMMF says the two crucial prerequisites for using 500 cSt fuel are the ability to heat it to a sufficiently high temperature to inject it into the vessels' engines, and the provision of purification equipment able to deal with the higher specific gravity of the product.

The fuel must be maintained above its minimum pumping viscosity while in storage awaiting use. Storage tank heating coils are required, which are able to maintain the fuel at a stored temperature at or above 45 degrees C. Modern purifier systems are capable of ensuring that the fuel is effectively and sufficiently cleaned. Finally, the ship's main engine fuel oil pre-heaters must be able to raise the fuel to between 140 and 155 degrees centigrade. At these temperatures the new fuel is at the typical engine fuel injection viscosity of between 15 and 10cSt. The additional heating required to use the 500cSt fuel should be easily covered at sea by the vessel's exhaust gas boiler. In port, the boiler will typically consume extra fuel to maintain oil storage tank temperatures. But EMMF points out that, given the saving in the initial cost of the 500cSt product and the limited in-port time of many vessels today, there is the potential for significant savings to be made. Many shipowners are now able to benefit from the possible cost savings involved in using heavier fuel without impairing the performance of their vessels. EMMF says that shipowners whose vessels can use the fuel may realize considerable economies over the course of a vessel's annual operational life.

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

Offshore

Oceanteam Financial Transformation Aids 2013 Business

Diversified offshore shipping company Oceanteam's CEO, Haico Halbesma, writes in the Annual Report 2013 that it was a year of consolidation and operational focus for Oceanteam Shipping ASA.

Bayport Dredging a Step Closer; Barbours Cut Pending

The U.S. Army Corps of Engineers has furnished the Port Authority its draft permit for the Bayport Channel Improvement project, Executive Director Roger Guenther

Coast Guard groundbreaking ceremony recogizes new support facility

Representatives from the 14th Coast Guard District, Coast Guard Base Honolulu and Mortenson Federal Contracting Group participated in a groundbreaking ceremony

Fuels & Lubes

Knightsbridge, Frontline to Form US Capesize Company

Knightsbridge Tankers Limited and Frontline 2012 Ltd. have announced an agreement to combine Frontline 2012's remaining fleet of 25 fuel efficient vessels with Knightsbridge.

Marine Diesel Purification Breakthrough by SurePure

Liquid photopurification specialist company SurePure Inc. apprises of a breakthrough in the microbiological purification of contaminated marine diesel fuel, using

ABS Approves Design for GTTNA’s LNG Bunker Barge

GTT North America (GTTNA), the Houston-based subsidiary of French engineering and technology company Gaztransport & Technigaz SA (GTT), received approval in principle from ABS for the design of a 2,

 
 
Maritime Careers / Shipboard Positions Maritime Standards Navigation Offshore Oil Port Authority Ship Electronics Ship Simulators Shipbuilding / Vessel Construction Sonar Winch
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: 0.2256 sec (4 req/sec)