The very low exhaust gas temperature (about 250°C at NCR, Normal Continuous Rating) after turbochargers of the large two-stroke intelligent marine diesel engines has been the major constraint which has an obvious effect on the design and application for waste heat recovery system on a 10000TEU container ship. The lower the exhaust gas temperature after turbochargers, the more difficult to adopt conventional cogeneration-type of waste heat recovery system. Part-load performance of waste heat recovery system plays an important role in the safe operation for ship's power plant. In this paper, dynamic mathematical models of two types of designed waste heat recovery systems for a 10000TEU container ship are established based on transfer function method. Part-load analysis has been done to investigae the dynamic characteristic differences between the two types of waste heat recovery systems.
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