|
|
发表于 2008-5-16 12:59
|
显示全部楼层
来自： 中国山东青岛
船舶螺旋桨在没有运动的情况下，很容易附着海生物等，这样在船舶航行时，由于螺旋桨表面的不光滑，在同样速度的条件下使主机的输出功率增大，燃油消耗更大。也许LS对这个难以理解，具体数据我等会找篇论文把数据给你。 为了防止这种情况的发生，需要在桨的表面涂装涂上一种基于硅树脂的弹性涂层，可以阻止海生物的附着并一般可以保证5--10年的光洁度。
所以，这种漆的功用就是 阻止海生物的附著，提高表面光洁度，减少燃油消耗，增加船舶的经济效益
这是一偏论文标题，大概介绍了为什么螺旋桨需要涂层，并给出一些数据证明没有涂层对主机燃油消耗的影响等。
Abstract;The case of, departure of ship from Port; the ship must arrived at the destination in security. Because, it is mission of ship. The propulsion system of ship is very important part for security of ship and crew, Therefore, engineers are has important watch to judge about clean or dirty of propeller blade. This judge does carry out departure of ship from port. Propeller blade was certain soiled by adhere to the seaweeds and marine fouling animals of anchored ship in harbor, however, that degree of dirty does not judgment from on board. This time, a way condition of propeller underwater is observed to do diving of professional diver, but, this way is both very danger and need high cost. A series of experiments, researched degree of dirty of propeller blade at measurement fuel pump index correspond with idle running of main engine and twice propulsion performance test from Mar. 1999 to Aug. 2000 on board the Kakuyo Maru. From these experements some result are obtained: i) The fuel pump index is increased from 10.0mm to 10.8mm; when, dirty condition of prolPeller blade. it rate of climb was 8%. Some formulae figure calculated in unit of percentage, rate of propeller revolution, Rp and shaft horse Power, Ne are: Experiment-3 (Exp-3), Ne=15.8331Rp-78.80, (r=0.9954), Experiment-4 (Exp-4), Ne=17.9308Rp-163.02, (r=0.9993). (author abst.)
显著部分是试验结果。
参考资料： JOTUN sealion技术数据，JOTUN 产品资料， ABOVE 论文
[ 本帖最后由 alphasen 于 2008-5-16 14:12 编辑 ] |
评分
-
查看全部评分
|
提升卡
变色卡
发表于 2008-5-16 12:07
楼主
