【作者】

Jesper Weis Fogh

【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。On-Board Diagnostic (OBD) is a tool for the condition based monitoring of MAN B&W Diesel two-stroke engines. Based on the data collected, expert advice is given to Chief Engineers, Owners and/or Managers via real time systems, and operational reports, on the reliability and economic operation of the main engine. The main component is the OBD software, which collects data from CoCos, PMI Auto-tuning, ships alarm system, external sensors, on-board and shore based laboratory measurements as well as wear measurements from scavenge port inspections, and liner calibrations. Uniquely amongst on-board systems, OBD compares and correlates this information to provide new and vital knowledge on the detailed engine condition, such as predicting ring packages lifetime and assessing the optimal cylinder lubricating oil feed rate. Unlike most real-time systems, the data from OBD is automatically replicated to the owners/managers office for further analysis and actions without expensive communication cost; additional expert systems can monitor and advise on main engine performance by correlating the data received from the vessel with current best practice and operational data. This paper focuses on the use of OBD in relation to Cylinder Condition. One example is the correlation between scavenge air temperature, wear measured manually and drain oil analysis to optimise the cylinder oil consumption and time between overhaul; both important issues for the operators in relation to reliability and cost. Other operational examples are given in the paper, such as documenting the relation between fuel quality, fuel treatment and engine tuning. The OBD system is also intended for the use of ship operators home office, offering an unique opportunity for the superintendents to get documentation of the main engine condition on individual ships and on the whole fleet under the superintendent’s supervision. In connection with condition based maintenance OBD could automatically provide the information required by Classification society.

【会议名称】

第28届CIMAC会议

【会议地点】

芬兰 赫尔辛基

【下载次数】

2

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