小型電動船之電力計算

Power Calculation of a Small Electrically-propelled Ship

目前全球環境問題嚴重，各國積極尋找替代能源來取代石油的消耗以降低溫室氣體的排放，而使電力推進船為現代發展之趨勢，其安靜且低污染之優點更是國內漁業、觀光船舶汰舊換新之首選。本文針對國內某雙胴體排水量型之電動船的船型，將其比例縮小後製成船模並進行推進試驗，除了以兩艘相同比例、形狀及材質不同的船模進行負重與拖航阻力測試外，更以實船的試俥資料與本文之實驗結果相互驗證，並推演兩者之間航行的耗能倍數關係。另外，文中亦探討提升船舶電力使用效率之方法，以船模與實船的試驗資料，設計便於使用者操作的人機介面。 The development of a full electric propulsion boat is a trend nowadays. Because of its quiet and low pollution, an electric boat is the first choice while thinking of replacing the old one in Taiwan. In order to study the design of an electric catamaran, this paper utilizes a ship model scaled down of a domestic displacement catamaran hull to do research. Two ships with the same ratio, different shapes and materials are used here to do weight bearing test and towing resistance test. Furthermore, the data obtained through the aforementioned testing are compared with the data retrieved during a test run of a real ship in order to find the relationship of power consuming between the small-scale ship model and the real ship. The efficiency of power consuming of a ship is also discussed in the paper to design a user-friendly human-computer interface.