Abstract
It is important for the energy saving to evaluate the performance of the marine propulsion plant in operation. The object of this study is the diesel propulsion system rated at 1, 103kW, installed in a training ship “Fukae-maru” (449 Gross Tonnage) owned by Kobe University of Mercantile Marine.Experiments have been made under the various loads of this engine on calm sea. In the analysis, the entire plant is assumed to be a steady-flow system, and both the first-and the second-law of thermodynamics are employed in order to clarify not only the quantity of energy but also the quality of energy.In consequence of these analyses, the places where the energy losses are generated in this plant are made known, and the Sankey diagrams (energy-flow diagrams) and the exergy efficiencies of this plant are also obtained.
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