Abstract
The main engine exhaust gas of motor ships has high heat content. The gas temperature is, however, fairly low, and in order to recover as much heat as possible, a multi-pressure steam generating system is effective. Mitsubishi Heavy Industries has developed the dual pressure steam generating plant which is practical and highly efficient in waste heat recovery. It is capable of supplying steam to generate the required shipboard electric power and ship service steam even with a main engine of less than 10, 000 PS.
This report describes the practicality, economy and construction of the dual pressure steam generating system, exhaust gas economizer and solid brushing soot cleaning device.
