This guideline is about making new rules for stopping ships that use azimuthing thrusters. The current SOLAS rules don't consider modern ship designs with different types of propulsion systems and .. more
Subject: Attendance at Type Approval Tests (TAT)
Background: Within the last years quite some experience was gained during Type Approval Tests. We have realized that Class surveyors well attended the TAT but nearly without any contribution to the process. Various reasons could be sorted out such as no information about the engine or the system, lack of interest etc. It is always hard to see how costs are accumulating for nothing. It has to be realized that there is no or at least not much time to explain a system or the engine functions during a TAT. We feel that the announcement of a forthcoming TAT and the invitation to the TAT one month ahead should give time enough that those persons attending a TAT are more or less well informed about the object and what they should witness.
Proposal: We recommend IACS MP to nominate a limited number of permanent or ad hoc selected Class representatives to participate in Type Approval Tests and witnessing on behalf of all IACS members. The engine builder or designer has to forward a TAT program for approval to all the Classes who subsequently will receive the TAT Report and will be asked to issue a Type Approval Certificate.
Download Publication [PDF]CIMAC WG 8 | Guideline: The causes of scuffing and actions to prevent scuffing in two-stroke engines
The latest publication from CIMAC WG8 ‘Lubrication' titled ‘CIMAC WG 8 | Guideline: The causes of scuffing and actions to prevent scuffing in two-stroke engines’ is now .. more
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In February and .. more
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This .. more
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This guideline follows on from the CIMAC WG7 guideline No 09:2014 [1] which set out the differences between the ISO 4259 approach and that adopted under MARPOL Annex VI in respect of fuel .. more
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Unburned Methane emissions from gas engines are of concern because of their contribution on global warming. Formaldehyde – a toxic interstage product of the Methane oxidation process – .. more
Over the last few years gas-fuelled engines have become more popular also in the marine industry both for on-board power generation and propulsion duties. Whereas the use of gas-fuelled marine .. more
Crankcase explosion is caused due to the overheating of one of the cylinders in the main machinery space. The consequences of the explosion is severe and it affects the working of other engines. .. more
In the current absence of an officially accepted specification for marine fuel containing more than 0.1% v/v biodiesel, this CIMAC publication provides background information and guidance to .. more
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Especially regarding switch of .. more
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On 10 October 2008, the IMO Marine Environment Protection Committee at its 58th session, by Resolution MEPC.177(58), has adopted amendments to the Technical Code on Control of Emission of Nitrogen .. more
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Today, mainly for 4-stroke medium and .. more
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engine types & fuel .. more
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Control of Emissions of Air pollution from Locomotive Engines and Marine compression-ignition engines less then 30 litres per cylinder.
This publication discusses the following issues: .. more
Subject: Implementation of new or revised UR
Background
On the occasion of the last CIMAC WG2 meeting at Vaasa in April 2005 we ocassionally learned that some UR have been revised and .. more
Subject: Delivery of EIAPP Certificates
Background
Since that moment when the new IMO regulations regarding NOx came into force claims from engine builders increased. The engine builders .. more
Subject: Attendance at Type Approval Tests (TAT)
Background: Within the last years quite some experience was gained during Type Approval Tests. We have realized that Class surveyors well attended .. more
Use of low sulphur diesel fuels in coastal waters.
CARB / EPA propose that Ocean going ships must use only distillate fuels (diesel oil) with a low sulphur content and a low content of aromatic .. more