Possibilities and Best Practices to Comply with IMO TIER regulations Janne Ahti Area Manager North Europe 4-Stroke Wärtsilä Finland Oy

Possibilities and Best Practices to Comply with IMO TIER regulations Janne Ahti Area Manager North Europe 4-Stroke Wärtsilä Finland Oy 1 Wärtsilä 02 February 2012 Presentation name / Author

POSSIBILITIES Engines built before year 2000 Majority of Wärtsilä engines can be upgraded to comply with IMO TIER I or TIER II 2 Wärtsilä 02 February 2012 Presentation name / Author

POSSIBILITIES Engines built before year 2000 2-Stroke engines IMO certified Approved Method exists for all applicable 2-S engine types. Complies with Nox limits set in TIER I. Only few engine specific exceptions exist. Ships that required to comply Marpol Annex VI need to fit an Approved Method when such exist. 3 Wärtsilä 02 February 2012 Presentation name / Author

POSSIBILITIES Engines built before year 2000 2 Stroke engine types concerned RTA 52 RTA 58 RTA 62 RTA 72 RTA 84 RTA 96 4 Wärtsilä 02 February 2012 Presentation name / Author

POSSIBILITIES Engines built before year 2000 4-Stroke engines Most of the 4-S engine types have solutions to comply with Nox limits set in Tier I. Some engine types have solutions to comply even with Nox limits set in TIER II. IMO certified Approved Method does not currently exist for the 4- stroke engines in our portfolio. 5 Wärtsilä 02 February 2012 Presentation name / Author

POSSIBILITIES Engines built before year 2000 Engines with solutions to comply with IMO TIER I: Vasa32 W32 ZA40 WN25 F30 Stork SW280 Stork F240 Wichman 28 W38A2 Engine types with solutions to comply with IMO TIER II: Vasa32 W32 Stork SW280 Deutz628 Deutz620 WN25 Deutz (several types) 6 Wärtsilä 02 February 2012 Presentation name / Author

7 Wärtsilä 02 February 2012 Presentation name / Author Best Practices

BEST PRACTICE Engines built before year 2000 WÄRTSILÄ PREFERS TO UTILISE, CERTIFIED AND APPROVED SOLUTIONS WITH PROVEN EFFECTS 8 Wärtsilä 02 February 2012 Presentation name / Author

DEVELOPING SOLUTIONS TO OLDER ENGINES New engines lead the technical development. Newest technology aims to comply with newest regulations. Tier II Tier I Old engine Finding ways to utilize new technology in older engines New version of same type New type of engine New version of same type 9 Wärtsilä 02 February 2012 Presentation name / Author

DEVELOPING SOLUTIONS TO OLDER ENGINES Benefits: - Technology applied is used widely so it s proven - It s technology Wärtsilä has chosen and thus Wärtsilä has committed to it. - Secures product support in future. - Further development - Focus on best way to implement the new technology in old engine. - Allows concentrating on a specific feature (like Nox emissions) - Allows us to choose the best fit method of the latest technology 10 Wärtsilä 02 February 2012 Presentation name / Author

BEST PRACTICES 1. Solutions based on a parent engine. The features and performance are tested at controlled conditions in a test facility or a test installation. Solution and its performance is certified, documented and approved. Sold in packages tailored for each installation based on a parent engine. Delivery scope might vary but effects are known An EIAPP or equivalent certificate can be provided 2. Solutions tailored case by case. Technology used is known and results are calculated or estimated. Performance and features are confirmed afterwards Sold and specified as case specific projects. 11 Wärtsilä 02 February 2012 Presentation name / Author

Why is this best practice We think it s best practice because: 1. The results are known at beforehand. They are certified, tested and documented. No need for onboard measurements. 2. Standardised solutions Security, product support, reliability. Further development Faster delivery times (no design needed) 3. Faster installation time No need for measurements before and after. 12 Wärtsilä 02 February 2012 Presentation name / Author

Why is this best practice Challenges with measured data: Comparability of results. Test facilities vs onboard Overhaul vs not overhauled engine We think it s best practice because: 1. The results are known at beforehand. They are certified, tested and documented. No need for onboard measurements. 2. Standardised solutions Security, product support, reliability. Further development Faster delivery times (no design needed) 3. Faster installation time No need for measurements before and after. Challenges with onboard measurements: Engine load Difficult to define exactly onboard dependent on weather conditions Engine condition: component condition influence engine operation and thus emissions and fuel oil consumption Measurement equipment and arrangements: Might increase measurement tolerances Other things to consider: Fuel oil consumption Other emissions (Co2, Sox) 13 Wärtsilä 02 February 2012 Presentation name / Author

BEST PRACTICE SOLUTIONS 2-Stroke engines Wärtsilä has available IMO certified Approved Method. Solutions are sold as packages. Solution is easy to install and can be done during a port stay No offhire or additional measurements are needed. Certificate to prove the compliance. 14 Wärtsilä 02 February 2012 Presentation name / Author

BEST PRACTICE SOLUTIONS 4-Stroke engines Several Parent Engine based solutions exist. (Vasa32, W32, WN25, W38A) Solutions are sold as packages. Scope in each package is tailored to match a Parent Engine. Solutions are most feasible to do in connection of an engine overhaul. Certificate to prove the compliance. 15 Wärtsilä 02 February 2012 Presentation name / Author

Wärtsilä 16 Wärtsilä 02 February 2012 Presentation name / Author