Picture courtesy of MAN Power Options

Feb 13, 2022 8:47 PM by

The Maritime Govt

[By: MAN Energy Solutions]

MAN Power Options’ after-sales division in Augsburg, Germany – MAN PrimeServ Augsburg – has accomplished the retrofitting of twin SCR programs aboard the ‘MS Amadea’, a cruise ship chartered by PHOENIX Reisen GmbH Bonn (Germany) and managed by BSM Cruise Providers. Also called ‘Das Traumschiff’, the Amadea is well-known in Germany as the principle filming set for a highly regarded tv collection.

The retrofit developed by MAN PrimeServ Augsburg built-in an SCR system into each of the Amadea’s four-stroke MAN 7L58/64 propulsion-engines to make sure optimum efficiency.

The retrofit displays a basic want by PHOENIX Reisen to boost its environmental friendliness and, extra instantly, allows the vessel to fulfill emission requirements in the important thing Norwegian Heritage Fjord market. For the challenge, MAN PrimeServ prioritised holding hazardous emissions to a minimal whereas sustaining engine efficiency and propulsion effectivity.

Bernd Siebert, Head of Retrofits & Upgrades, MAN PrimeServ, mentioned: “This has been an necessary pilot challenge for MAN PrimeServ that finally proceeded easily regardless of the restrictions imposed by the Covid-19 pandemic. Notably, we additionally efficiently delivered the SCR programs pre-equipped with honeycombs in an effort to keep the tight schedule. In addition to some minor, technical changes post-installation, we simply reached the required exhaust-gas temperatures for SCR operation and regeneration of the honeycombs in testing. We nonetheless want to find out the precise urea consumption required to attain the mandatory NOx discount, however, happily, the engines have been extra not too long ago geared up with new MAN turbochargers such that protected operation of the SCR programs is assured.”

The Amadea challenge required metal work to free house for set up of the SCR programs and ancillary items; the modular SCR system usually put in aboard newbuildings was not 100% transferable to a retrofit and required some changes within the case of the Amadea. Mechanical and electrical integration, and system parameterisation, additionally required some assets. The formal handover of the Amadea to PHOENIX Reisen befell in mid-January 2022 after classification society acceptance. Technical Superintendent BSM CS, Bosse Berg, and his Engine Group verified the profitable emission reductions throughout commissioning of the system and said that they had been satisfied by its efficiency.

Siebert added: “This SCR resolution establishes PHOENIX Reisen and BSM CS as trailblazers inside the cruise section by way of emission discount. More and more, we’re receiving requests from cruise and ferry corporations that need to enhance their inexperienced credentials and who want to develop into sustainable with out the necessity for mandated trade laws. We now have realized many classes and gained priceless business expertise from your complete Amadea challenge that may serve us in good stead on comparable tasks sooner or later.”

Technical issues

MAN PrimeServ Augsburg beforehand retrofitted the Amadea’s turbochargers – within the course of bettering engine effectivity and considerably lowering CO2 emissions. The mixed work carried out on the vessel displays MAN Power Options’ want to more and more develop into a provider of full propulsion options.

The MAN SCR resolution has introduced the Amadea’s engines from Tier 0 standing to Tier III emission degree, and has diminished NOx emissions by 90%, equal to financial savings of 600 tons each year. MAN’s SCR system is the greenest resolution accessible in the marketplace with the best operational readiness and security: the SCR will probably be accessible from simply 15% engine load, enabling clear operation, additionally throughout slow-sailing within the fjords in addition to near port and populated areas.

The totally modular SCR resolution has additionally been fullly built-in into the Amadea’s engine-control set-up. With its closed-loop system and a climate station that makes use of environmental knowledge, the NOx-reduction charge is maximised and ammonia-slip minimised to simply 10 ppm, similar to that of a automobile. Low ammonia slip is not only good as a result of ammonia is a greenhouse fuel and impacts the local weather, but in addition as a result of it reduces urea consumption, enabling the urea-tank measurement to be minimised.

A feasibility examine by MAN PrimeServ on the challenge’s starting confirmed the compact, modular SCR system’s suitability for the restricted house accessible aboard the vessel. Its integration into the slim funnel is barely attainable as a result of particular 87cpsi honeycombs and their excessive reactivity in a two-layer slim reactor design.

The services herein described on this press launch should not endorsed by The Maritime Govt.