【作者】

Michael Sturm

【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 The increase in efficiency along with a reduction in emissions is the main task in the development of modern marine propulsion systems. This improvement can be achieved directly by the engine itself or by a combined cycle for waste heat recovery. This paper presents a method where an ORC-Process (Organic-Rankine-Cycle) is arranged downstream of the engine for generating electric power. An ORC-Process is different from the Water-Steam-Cycle actually by using an organic working fluid. Due to the high number of potential work fluids they can be optimally adapted to the existing heat source and cooling system. In order maximize the efficiency; the temperature difference of the ORC-Process should be as large as possible. This can generally be reached by utilizing the exhaust heat directly or by the steam system. The analyzed ORC module is an independent unit with a rated electrical output of 309kW and an efficiency of 13.9%. The full power of the ORC module is already provided at 65% load of 8 M 46 DF engine. Due to the early achievement of the maximum output a high average utilization of the ORC-Module is ensured. The feasible ORCOutput is up to 8% of the engine power. This value corresponds directly to an efficiency improvement.

【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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