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Cimac Congress | Shanghai 2013 become extremely lowered when the piston ring coating is worn out in recently developed, advanced engines, which have a higher output. Therefore, the life of the piston ring coating is required to be longer than the dry-dock intervals. Chromium ceramic coating is used as the piston ring coating that has relatively high reliability. However, further improvements with respect to the piston ring coating lifetime and scuffing resistance are required to be realised for satisfying the market demands. The present paper reports about the development of a new generation coating for piston rings. The first step of the development is to clarify the sliding characteristics and the sliding mechanism of conventional plasma sprayed Mo coatings and chromium ceramic coatings. Plasma sprayed Mo coatings have a high scuffing resistance with inferior coating life. Chromium ceramic coating films possess a longer coating life than the plasma sprayed Mo coatings with lower scuffing resistance than the Mo coatings. Numerous basic studies and various measurement results obtained on operating ships in the present investigation have yielded a concept for new coatings that should have superior scuffing resistance than the Mo coatings, and longer coating life than that of chromium ceramic coatings as targets of the development of the new coatings.The developed coatings are subjected to laboratory tests that indicated that the coatings possess excellent properties. Namely, the developed coatings possess the scuffing resistance of about 1.8 times than that of conventional chromium ceramic coatings, and the coating life has been prolonged more than 4.3 times than that of the conventional chromium ceramic coatings. Furthermore, the developed coatings are confirmed to possess the same order of attacking property against the cylinder liners. Test conducted on operating ships have confirmed the same order of the coating life and superior sliding property as obtained at the laboratory tests. Thus, the actual applicability of the developed coating for main engines of operating vessels has been demonstrated. Design optimisation in the solution of piston ring sticking and carbon deposit lingyu Zhu, Weichai Power Yangzhou Diesel Engine Co, Ltd, China High oil consumption and blow-by rates are often related to piston ring sticking and carbon deposit. Engine tests were carried out and test results were analysed to investigate and verify factors and correlations of the problems. Designs of cylinder block and head water jacket were optimised and the combustion system was improved in the solution of piston sticking and carbon deposit. The results of the engines with an improved design are quite satisfactory. Poster Sessions Thursday May 16th Session Simulation Study on the Overall Performance Optimization for 4190 Series Marine Diesel Engine Based on AVL Boost Software J. Huang, Y. Qiao, Z. Yin, Jimei University, China The Influence of Intake Charge Temperature on Combustion & Emissions of Dual-Fuel HCCI Combustion Engines M. Fathi, M. Mirsalim, DESA, Iran, R. Khoshbakhti Saray, Sahand University of Technology, Iran Comparison of Torsional Vibration Measurement Techniques W. Hendricx, K. Janssens, L. Britte, LMS International, Belgium Influence Factors on Preload Deformation & Structure of Cylinder Line Y. Bi, L. Shen, J. Lei, D. Jia, Y. Xu, Kunming University, China Experimental Study on the Method for T.D.C. Determination of a Medium-speed Marine Diesel Engine X. Wu, H. Zhang, L. Ren, Y. Tian, F. Gu, Shanghai Marine Diesel Engine Research Institute, China Session 11 An Attempt to Recompute ECN in the FCA Instrument L. Vedala, S. Chandrasekharan, R. Visweswaran, Viswa Lab, USA Active Vibration Isolation for a Diesel Engine Generator in Marine Application T. Yang, J. Du, M. Zhu, X. Liu, Z. Liu, Harbin Engineering University, China Shipping under Hard Pressure in Challenging J. Erdtmann, NSB Niederelbe, Germany Session 6 Numerical Simulation on Spray Atomisation Characteristics & Mixing Performances for SCR System in a Marine Diesel Z. Yuanqing, Z. Song, Harbin Engineering University, China, G. Lin, Jiangsu Nuclear Power Corporation, China Investigation on Marine Exhaust Gas Desulphurisation by Seawater Scrubbing W. Dong, Harbin Engineering University, China Selective Catalytic Reduction of NOx with NH 3 over Ti0.9M0.1O2-δ Nanocomposites Catalysts Prepared by Solution Combustion Synthesis B. Guan, H. Lin, L. Zhong, W. Dong, Z. Huang, Shanghai Jiao Tong University, China Experiment & Modelling of Urea Spray Impingement & Deposit for Diesel SCR L. Hua, T. Tang, Y. Zhao, S. Shuai, Tsinghua University, China Effects of Particulate Oxidation Catalyst on Particulate Matter emitted from Diesel Engine X. Feng, Y. Ge, X. Han, L. Hao, J. Tan, L. Yu, J. Guo, Beijing Institute of Technology, China Session 8 Energy Efficient Hydraulic Systems for Large Engines S. Fischer, Bosch Rexroth, Germany Development & Application of a Monitoring & Fault Diagnosis System for Marine Diesel Engines Y. Yu, J. Yang, Wuhan University of Technology, China A Method for Determination of Filter Blocking Tendency of Residual Bunker Fuels S. Ghosh, A. Talukder, R. Visweswaran, Viswa Lab, USA Clean Energy with DUAP Fuel Injection – Results & Further Developments M. Gutierrez, A. Marti, E. Vogt, Duap AG, Switzerland The Research & Development on Parts Performance Improvement for Internal Combustion Engine C. He, Shanghai Golston Shipping Fittings Co. Ltd., China Evolution & Characterisation of the Friction Condition Transition of Chrome-Plated Cylinder Liner & Two Typical Piston Rings W. Jianping, China North Engine Research Institute, China The New Machining Method of Connecting Rod Spherical Surface X. Rongrong, D. Zongjiang, X. Shao, X. Hou, P. Zhou, Ningbo China Development Design of Crank Oil Seal Q. Liu, Ningbo, China Session 12 Study of Total Energy Utilizing for Biogas Power Generation- Cogeneration based on the Energy Efficiency Analysis S. Li, CNPC Jichai Power Equipment Company, China, S. Bai, Q. Zhang, G. Li, Shandong University, China 78 SPECIAL Schiff&Hafen | Ship&Offshore | May 2013
www.schiffundhafen.de www.shipandoffshore.net www.dvvmedia.com XXImprInt EDITOR IN CHIEF Dr.-Ing. Silke Sadowski +49 40 237 14-143 silke.sadowski@dvvmedia.com Editor Kathrin Lau +49 40 237 14-237 kathrin.lau@dvvmedia.com PUBLISHER DVV Media Group GmbH Postbox 10 16 09, D-20038 Hamburg Nordkanalstraße 36, D-20097 Hamburg +49 40 237 14 - 02 Dr. Dieter Flechsenberger (Managing Partner) Martin Weber (Managing Director) Detlev K. Suchanek (Publishing Director) detlev.suchanek@dvvmedia.com ADVERTISING Florian Visser +49 40 237 14-117 florian.visser@dvvmedia.com Ilkay Gülgün +49 40 237 14 - 302 ilkay.guelguen@dvvmedia.com ADVERTISING REPRESENTATIVES Germany, Austria, Switzerland Friedemann Stehr +49 6621 9682930, fs@friedemann-stehr.de Scandinavia Örn Marketing AB +46 411 18400, marine.marketing@orn.nu UK, Ireland Bernard Steel +44 1444 414293, bernardsteel@uktpl.com France Janie Durand +33 1 39 43 39 98, durand.janie@wanadoo.fr Poland, Eastern Europe Wladyslaw Jaszowski +48 58 6649847, promare@promare.com.pl USA, Canada Brett Keil +1 954 8489955, brett.keil@dvvmedia.com Singapore, Malaysia Winnie Low +65 6886 1590, winnie_low@omr.com.sg The Netherlands, Belgium, Italy Tony Russell Stein +44 15 06 82 88 00, tony.r.stein@btinternet.com China Sherry Fang Simin +86 21 54256515, simin _fang@cssmc.cn SUBSCRIPTION/DISTRIBUTION Stefanie Hesslein (Marketing Director) stefanie.hesslein@dvvmedia.com Marijana Mikulic +49 40 237 14-343 marijana.mikulic@dvvmedia.com READERS‘/SUBSCRIBERS‘ SERVICE +49 40 237 14-260 service@shipandoffshore.net SUBSCRIPTION TERMS The minimum subscription period is one year. Subscriptions may be terminated at the end of any subscription period by giving six weeks‘ notice. The publishers accept no liability if it is not possible to publish the magazine due to force majeur or any other cause beyond their control. COPYRIGHT by DVV Media Group, Hamburg, Germany It is not permitted to publish, distribute or reproduce any part of this magazine without the publishers‘ prior written permission. This prohibition extends, in particular, to any form of commercial copying, inclusion in electronic databases or distribution including electronic databases or distribution in any electronic format, such as CD-ROMs or DVDs. ISSN 2191-0057 ISSN 0938-1643 MEMBER XXAdvertisers 7 Aquametro AG, CH-Therwil 11 Chris-Marine AB, S-Malmö 23 Kompressorenbau Bannewitz GmbH, D-Bannewitz 31 KTR Kupplungstechnik GmbH, D-Rheine IFC, IBC DVV Media Group GmbH, D-Hamburg 21 L‘Orange GmbH, D-Stuttgart 15 Hörbiger Ventilwerke GmbH & Co. KG, A-Wien 19 Hans Jensen Lubricators A/S, DK-Hadsund 5 MAN Diesel & Turbo SE, Copenhagen 27 Thermamax Hochtemperaturdämmungen GmbH, D-Mannheim
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