Update on W(a)rtsil(a) 4-stroke Diesel Product Development
Internal combustion development and value proposition within W(a)rtsil(a) is increasingly geared towards offering end customers solutions featuring flexibility, agility, and the highest efficiency in both on-shore and off-shore applications for power plants and marine installations. The ’must haves’ for both the customers and also for W(a)rtsil(a) remain as being reliability, emissions compliance, and cost effective solutions. This paper will describe the main technology enablers for delivering these benefits, and will also give an overview of the products available and recently developed that incorporate them. The fourstroke product portfolio overview is divided into two papers: one reviewing diesel and the other reviewing gas technologies / products in more detail. It should be noted, however, that many technologies can naturally be applied for both. Primary measures, such as high pressure charge air systems, secondary measures such as exhaust gas after treatment, and multi fuel operation, currently appear to be the most robust and promising technologies for compliance with existing and future legislation. They represent the boundary conditions to product development. Unplanned malfunctions are expensive. Therefore, in product development the target is to integrate simulation and self adapting systems. One of the key technologies for the future is 2-stage turbocharging. W(a)rtsil(a) presented this idea embryo for the first time at CIMAC 2004 in Kyoto. Through systematic work on this technology, the entire industry as well as customers have been able to harvest the benefits, namely fuel consumption savings, NOx emission reductions, and increased reliability. This paper will describe the products now available and those to come featuring the 2-stage turbo charging system. It will also describe the design, the measured customer benefits, and will highlight the issues observed from units that have operated for 10 000 running hours. The paper will also offer a description of the first commercial plants to operate with this technology in both marine and power plant installations. Another key technology is electronic fuel injection. Again here, W(a)rtsil(a) was a pioneer in the late 90’s when we introduced this as a means for cruise vessels to achieve low particulate and smoke emissions. The paper will describe the changes made from the cam driven pump-accu-injector system to the 2nd generation system. It will also show the improvements in reliability and customer maintenance. Finally, it will also show the improvements in fuel efficiency and flexibility compared to the 1st generation system, and the reasons behind these improvements, as exemplified in W(a)rtsil(a)’s portfolio of 2nd generation CR products. Variable valve mechanisms for optimum performance at all loads and increased flexibility under all conditions, has become the standard solution for most engines, the customer benefits being obvious. However, today’s 2013 systems are somewhat different than the systems in the late 90’s, when W(a)rtsil(a) first introduced them for large medium speed engines. Embedded automation is an enabler for most technologies being used on products in a reliable and repeatable way. W(a)rtsil(a) has continued the development of its UNIC system with increased functionalities, while maintaining high safety and offering a better user interface. The paper will describe the benefits of having one system. After treatment systems integrated on engines offer a means of reaching the increasingly challenging emission limits with high efficiency. The paper will include W(a)rtsil(a)’s experience and the customer benefits with such systems. The paper will finally include also an overview of the new diesel products in the W(a)rtsil(a) portfolio where the mentioned technologies are utilized. Examples include a new small bore engine / a locomotive adaption of the W(a)rtsil(a) 20 / the industrialized 2-stage turbocharged W(a)rtsil(a) 32 / field experience with the new W(a)rtsil(a) 32 featuring the new generation of common rail / the W(a)rtsil(a) 46 and oth- ?CIMAC Congress 2013, Shanghai ers.
Robert B Ollus Tero Raikio Ari Suominen Jonas Akerman Paolo Tonon Diego Delneri Andrea Bochicchio
W(a)rtsil(a) Finland,Finland W(a)rtsil(a),Finland W(a)rtsil(a),Italy
国际会议
上海
英文
1-8
2013-05-13（万方平台首次上网日期，不代表论文的发表时间）