LR Addresses Fuel Changes when Entering and Exiting ECAs

By Eric Haun
Tuesday, June 17, 2014

From January 1, 2015, the maximum sulphur content of fuel oil used within the MARPOL Annex VI Emission Control Areas (ECAs) will be 0.10%, unless using an approved alternative means for controlling sulphur emissions. In most cases, the fuel used will be low-sulphur distillate oil (LSDO). Many ships operating both inside and outside ECAs will changeover between LSDO and residual fuel oil (RFO) when entering and exiting ECAs.

Lloyd’s Register Rule requirements
The Lloyd’s Register (LR) Rule requirements for fuel oil systems are contained within Pt.5 Ch.14 sections 2, 3 and 4; these contain design requirements for systems which are to operate on either LDSO or RFO grades, or both. LR also offers the optional descriptive note, DIST, for shipowners and operators applying industry best practice to the use of LSDO. The ShipRight Procedure for Assigning DIST Descriptive Note contains further guidance on measures to be considered by owners and operators.

In cases where existing fuel systems, engines or other equipment on LR classed ships are not suitable for operation on LSDO in addition to RFO, or where manufacturers have recommended equipment modifications, any proposed modifications must be submitted to LR for approval. If you are uncertain about whether equipment on board your ships requires approval, please contact your local LR office for advice.

Main points to consider when carrying out fuel changeover
Alternating satisfactorily between LSDO and RFO depends on owners and operators applying established changeover procedures and giving attention to maintenance and operating requirements. Some of the main points to consider are as follows:

Changeover procedures

  • Each ship should have an established and documented fuel changeover procedure which limits the maximum rate of temperature change when changing between RFO and LSDO.
  • Crews should receive training and instruction on applying the fuel changeover procedure.
  • Fuel oil spill returns from engines and other equipment should be routed and managed to avoid contamination of LSDO tanks with other fuels.
  • The compatibility of the RFO and LSDO should be checked. If instability occurs, it will generally be at the interface of the two fuels, necessitating more frequent filter changeover and cleaning to avoid blockage.


Maintenance

  • LSDO is less tolerant than RFO of worn fuel pumps; excessive barrel clearances will result in high leakage rates and failure to generate the required pressures, and may even prevent the engine starting. Excessive fuel supply and booster pump clearances will result in reduced delivery rates and pressures.
  • The cleaning and searching nature of LSDO relative to RFO, and the temperature differential between the two fuels, can result in seepage from pipe flanges, joints, seams and instrument connections.


Operation

  • Heating of LSDO will lower its viscosity below the minimal allowable limit of fuel equipment, requiring heating systems to be shut down and meaning that indirect heating must be avoided. Cooling or even chilling of LSDO may be required. Fuel with a higher minimum viscosity (e.g., ISO 8217 DMZ) should be considered as an alternative.
  • The base number of the engine lubricants (particularly cylinder oil) must be suitable for the sulphur content of the fuel being used.
  • The sulphur content of LSDO is expected to be close to the limit; marginal contamination with higher sulphur fuels will cause it to be noncompliant.


lr.org
 

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

Environmental

Concordia Tow Update: Smooth Sailing

The Costa Concordia wreck removal team reported this morning at 10:30 a.m. that after 22 hours of navigation, the convoy was over 50 miles off Giglio Island with about 140 miles from Genoa Prà-Voltri.

Thome Is the First to Sign up to IMPA Act

Leading integrated ship management service provider Thome Ship Management has become the first ship management company to join IMPA ACT, the responsible supply chain management initiative,

Legislation Grants Funding for EU's EMSA

EU Council Adopts Regulation on EMSA Funding The European Union Council adopted a regulation yesterday to finance the actions of the European Maritime Safety

Fuels & Lubes

Maritime NZ Oil Spill Response Review: Submissions

Maritime New Zealand (MNZ) says it invites submissions on its draft updated New Zealand Marine Oil Spill Response Strategy 2014 (the draft Strategy). The draft Strategy, (available at http://bit.

Ecuador Order Elastec/American Marine Oil Spill Equipment

Elastec/American Marine say that quality and dependability made all the difference when the state oil company of Ecuador decided recently to purchase its oil spill response equipment.

Thai Resort Owners Sue State Owned Company for Oil Spill

Business owners on Koh Samet island are suing a state-owned petroleum enterprise for the oil spill that polluted the resort island's beaches last year. More than 50,

Marine Power

MES Gets First Order for ME-GI Marine Engine

Mitsui Engineering & Shipbuilding Co., Ltd. (MES) has received the first order of electronically controlled gas injection diesel engine (ME-GI) for MES. MAN B&W 8S70ME-C8.

Wärtsilä to Divest its Shares in Two-stroke JV

Wärtsilä to divest its shares in QMD two-stroke joint venture Wärtsilä announced that it will divest its shares in the Qingdao Qiyao Wärtsilä MHI Linshan Marine Diesel Co.

Bechtel Plant Awarded Nuclear Propulsion Contract Modification

U.S. Department of Defense informs it has awarded a $39,437,949 cost-plus-fixed-fee modification to a previously awarded contract (N00024-12-C-2106) for naval nuclear propulsion components.

News

Seafarers Beware – Social Media Ahead

Videotel, part of KVH Industries, Inc., has launched a new program, Social Media at Sea, addressing the unique dangers of inappropriate use of social media by shipboard

Concordia Tow Update: Smooth Sailing

The Costa Concordia wreck removal team reported this morning at 10:30 a.m. that after 22 hours of navigation, the convoy was over 50 miles off Giglio Island with about 140 miles from Genoa Prà-Voltri.

Thome Is the First to Sign up to IMPA Act

Leading integrated ship management service provider Thome Ship Management has become the first ship management company to join IMPA ACT, the responsible supply chain management initiative,

Classification Societies

GE, LR Study Gas Turbines for Commercial Ships

GE Marine and Lloyd’s Register Sign Memorandum of Understanding to Collaborate on Applying Gas Turbines to Power Commercial Ships GE Marine and Lloyd’s Register

DNV GL Publishes Regulatory Roadmap for Floaters in the US

DNV GL announced it has mapped out what is necessary to be in compliance with U.S. Coast Guard (USCG) requirements to operate FOIs, FSOs and FPSOs in U.S. waters.

Singapore Approves Danelec New-Generation VDR

The Maritime and Port Authority of Singapore has issued a certificate of approval for the Danelec DM100 VDR for installation on ships under the Singapore registry.

 
 
Maritime Careers / Shipboard Positions Naval Architecture Navigation Offshore Oil Pod Propulsion Port Authority Ship Repair Ship Simulators 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: 0.1178 sec (8 req/sec)