Determination of generator capacity on fishing and training vessel is based on the estimations of necessary power under the various operating conditions, using the electric power consmption table, the same table as a merchant ship uses, which is adopted also on fishing boat. In spite of such a determination on Shinyo-maru (Tokyo University of Fisheries), generator was forced the operation under low load.
We researched, here the operationg condition of automatic start-stop machines on Shinyo-maru, as well as the power consumptions on large fishing and training vessels of other national universities.
Then we found out the real situation concerning the necessary power on fishing and training vessel, and the difference between the standpoints of a merchant ship and ours concerning the table. The diversity factor and demand factor were also estimated.
We came to the following conclusions;
1) The operations of the generator under low load frequently occurred.
2) Comparing to a merchant ship, we are apt to overestimate the necessary power.
3) As the special generator during the anchorage generate little electricity, which can hardly supply the airconditioning units with enough power, generator capacity of that suitable for all-seasuns, is, therefoer, desirable.
4) As a value of diversity factor, we recommend the use of 35%,
5) Normal necessary power (
Y) under summer service condition is related to gross tonnage (
X), complement (
Z) and length between perpendiculars (W), by the following equations.
Y=0.0988
X+59.0,
Y=2.11
Z-25.5,
Y=6.72
W-232
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