「深江丸」推進プラントの熱力学的性能評価(商船・理工学)

概要

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It is important for the energy saving to evaluate the performance of the plants in operation. The object of this study is the propulsion system installed in the training ship of "Fukae-maru" (449 Gross Tonnage) owned by the Faculty of Marine Sciences of Kobe University. This system has two plants, one is the main diesel engine plant rated at l,100kW and the other is the emergency electric propulsion plant rated at 220kW. Experiments have been made under the various loads on calm sea. Especially, when use electric propulsion plant, they have been made varying propeller pitch angle and varying the direction of armature rotation. In these analyses, the entire plant is assumed to be 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 these plants are made known, and it becomes clear that the method of this analysis is effective to evaluate the performance of the plant. And, the Sankey diagrams (energy-flow diagrams) and the exergy efficiencies of these plants are also obtained. Furthermore, the comparison between the performance data obtained in this time and seven years ago, has been studied.
神戸大学の論文
2005-07-31