【作者】

Ulf Åstrand

【摘要】

该论文已在赫尔辛基举行的第28届CIMAC大会上发表，论文的版权归CIMAC所有。ABSTRACT In addition to emissions and environmental pollution, the availability of fossil fuels is and will be one of the main questions for the world to solve. For Wärtsilä, combustion efficiency has been prioritized for several decades in the engine design to achieve low operational cost and secure compliance with emissions regulations. During the Nor-Shipping exhibition, the new Wärtsilä 31 engine platform was released, on 2 June 2015, to set a new industry standard for fuel consumption worldwide. The Wärtsilä 31 is designed for fuel flexibility with an engine platform consisting of three different products – a diesel engine, a gas engine, and a dual-fuel engine. In comparison with the competition, the specific fuel oil consumption has been lowered by 8 g/kWh, which has resulted in a new world record and registered in Guinness Book of World records. This paper will describe the benefits and customer values of the Wärtsilä 31 engine platform and outline the technologies that have been used to reach the set targets. More specifically, to reduce the life-cycle cost of the engine as well as minimize the environmental footprint, such as CO2 emissions, the thermal combustion efficiency was identified as one of the key factors. To further reduce the operational cost of the engine, a new maintenance concept has been taken into use with longer maintenance intervals and with shorter down-times. As marine solutions and applications tend nowadays to become more and more customer-specific, the flexibility has been another key priority. In particular, the Wärtsilä 31 engine has been designed to accommodate the utilization of a large variety of fuels and fuel qualities, both liquid and gas fuels, such as heavy fuel oil, marine diesel oil, low viscosity and low-sulphur fuels, liquefied natural gas, ethane gas, or petroleum gas. Moreover, in terms of operational flexibility, it has been essential to provide outstanding loading capabilities despite variations in the fuel quality. In conclusion, the Wärtsilä 31 engine platform is the world’s most advanced and efficient medium-speed four-stroke engine that has lifted the game to the next level for marine and power plant engines.

【会议名称】

第28届CIMAC会议

【会议地点】

芬兰 赫尔辛基

【下载次数】

3

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