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briefing Setting a new performance standard


The ISO is developing a standard for hull and propeller performance. Geir Axel Oftedahl, business development director for hull performance solutions at Jotun and project manager for the standard’s working group, explains why


What is the aim and scope of ISO 19030?


The aim of this standard is to recommend practical methods for measuring changes in ship specific hull and propeller performance, to the industry for use on a voluntary basis.


What is hull and propeller performance and why is it important?


Hull and propeller performance refers to the relationship between the condition of a ship’s underwater hull and propeller and the power required to move the ship through water. Measurements of changes in hull and propeller performance over time make it


possible


determine the impact of hull and propeller related maintenance, repair and retrofit activities on the fuel efficiency of the ship in question.


How did the project start? In a submission to IMO’s Marine Environment Protection Committee (MEPC) in February 2012, (MEPC63-4-8), the Norway-based environmental organisation the Bellona Foundation – as a part of the Clean Shipping Coalition and in cooperation with Jotun – called for a transparent and reliable standard for measuring changes propeller performance.


in hull and


In the submission it was estimated that the potential for fuel cost and greenhouse gas emission reductions related to improvements in hull and propeller performance was between 7 and 10 per cent across the world fleet. This translates into around 0.3 per cent of all man-made carbon emissions and US$30 billion in fuel costs.


When will the standard be available? Work on the standard was initiated in June 2013 and the target date for submission of a Draft International Standard is December 2014. Once a Draft International Standard has


www.mpropulsion.com


This propeller upgrade by MAN Diesel & Turbo’s PrimeServ division reduced fuel consumption for this dredger. The ISO standard will define how such changes can be measured (credit: MAN Diesel & Turbo)


been finalised, continued efforts undertaken to secure involvement from the industry every step of the way should pay off, and the June 2016 deadline set by ISO for final approval of ISO 19030 could be met.


to


How will it affect me? ISO 19030 will make it possible to accurately determine the impact of hull and propeller related maintenance, repair and retrofit activities on the fuel efficiency of the ship in question. This can in turn be used to learn from actions taken in the past and to make better decisions for tomorrow. The standard will also make it possible for buyers and suppliers of technologies and solutions aimed at improving hull and propeller performance to enter into performance based contracts based on a contractually acceptable measurement methodology.


Who is involved? Svend Søyland from the Bellona Foundation has been elected the convener of the working group and Geir Axel Oftedahl from Jotun has been appointed project manager.


There are currently more than 50 experts and observers, representing shipowners, shipping associations, newbuild yards, coatings manufacturers, performance monitoring companies, academic institutions, class societies and non-governmental organisations in the ISO working group tasked with reaching consensus on


a draft standard. Additional


stakeholders have and will continue to be consulted as a part of this process. IMO’s MEPC is being updated on progress on a regular basis. The work is being undertaken within ISO’s


Technical Committee (TC) 8, which deals with ships and marine technology, whose Sub- Committee (SC) 2 is concerned with marine environment protection. This project team forms SC 2’s Working Group 7. Two-thirds of the 14 participating member (P-member) bodies of ISO TC 8/SC 2 have to approve the draft before it is submitted as a final Draft International Standard for consideration by all ISO member bodies.


What about other drivers of ship efficiency?


The scope of ISO 19030 is limited to hull and propeller performance only and does not cover, for example, engine, fuel quality and navigation. However, the work that goes into standardising a method for accurately isolating hull and propeller from the other drivers of ship efficiency should make it easier to standardise similar measurability for those, as well.


industry


How can I get involved in developing the standard? Experts and observers are appointed by the 14 P-member bodies of ISO TC8/SC2. If you are an expert in a relevant field and want to contribute you can contact either the convener (svend@bellona. no) or project manager (geir.axel.oftedahl@jotun. no) for relevant contact details. MP


Marine Propulsion I April/May 2014 I 15


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