未登录,请登录后再发表信息
最新评论 (0)

使用巨长电缆的电动渡轮

This electric ferry uses a very long extension cord

There are more and more electric-powered ferries in the world,
世界上的电动渡轮越来越多
at least for short distances, across rivers or small lakes.
至少是跨河或小湖的短程电动渡轮
But one of the big problems with them
但有一个大问题
is that the batteries required are massive and expensive.
电动渡轮所需的电池体积大价格高
A ferry not only has to move something the size of a building,
轮船不仅要载动体积庞大的货物
but it’s got to push the water out of the way too,
还需要排开航线上的水
so you need far more energy than something like an electric car.
因此需要的能源比电动汽车多得多
Electric ferries would be a lot easier to run
如果你能给电动渡船通上电
if you could just, you know, plug them into the mains.
运行起来会容易得多
So that’s what the Randers Fjords Ferry in Denmark does:
丹麦兰讷斯峡湾的渡轮就是这样的:
it has 350 metres of hardened, waterproof, electrical cable
它装有350米长的硬化防水电缆
rolled up on a drum.
卷在圆筒上
One end is connected to the ferry.
一端连接着渡轮
The other end is plugged into the electrical grid, just there,
另一端则连接着电网 就在那
and as we set off, all the power for the motors
我们出发时 马达的所有动力
will be coming from the shore.
都将源于这边的海岸
我们每年载客量约七万
平均每天出海88趟
我们有长长的电缆
从我的红色办公楼开始连起
接着埋入地下 通往渡轮的位置
在那连接渡轮 然后我们就准备出海
一艘渡轮每天耗电约150-200千瓦时
转用电能前 船上有两个柴油发动机
柴油机留着 以防发生紧急情况
原本通常每天要消耗100升柴油
所以转用清洁的电能真的很环保
The most surprising thing for me is just how quiet this ferry is.
最让我惊讶的是 这艘渡轮非常安静
There’s no diesel motor churning away.
没有柴油发动机轰轰地转
And you might be thinking, okay, what if something snags on the cable?
你可以会想 如果有东西钩住电缆该咋办?
Well, this was already a cable-guided ferry, even before it was electric.
在采用电能发电前 这艘渡轮就装有钢缆
Cable ferries are pretty common around the world in places like this,
在世界各地 像这样水流急 水域浅的海峡
channels with strong currents or shallow waters.
钢缆渡轮十分常见
Instead of being pushed by a propeller, the boat pulls itself across
锁住铺设于河床的两根电缆
by latching onto two cables laid across the riverbed.
渡轮可以自行驱动 无需螺旋桨推进
There’s not much boat traffic round here,
这附近的船流量不大
and there are already clear rules for how to navigate around cables like that:
这里有明确规则如何绕过电缆航行:
basically, don’t pass while the ferry’s in motion.
基本上就是不要在渡轮行驶时通过
有大型轮船到达 要驶入兰讷斯湾时
电缆确实是个问题
我们必须松开所有电缆
让它们沉到海床上 好让那些轮船通过
不这样的话
轮船会勾住电缆 我们就不能航行了
小型船轻轻松松就能通过 大型船就不行
松开电缆大概需要九十秒
重新系好也要一样久
电缆没法捆成一束 也不会打结
渡轮时刻拉着缆绳 拉得很紧
We’re not going to be seeing this on
横渡英吉利海峡
ferries across the English Channel any time soon.
一时半会还没有这样的电缆独轮
Plug-in boats are obviously going to be limited to a few situations.
显然电动渡轮只限于少数情况使用
And the biggest fuel-burners are still massive world-travelling container ships.
最耗燃料的仍是环游世界的大型集装箱船
But this does feel like one more step in the right direction.
但电动渡轮确实是朝正确方向迈进了一步

发表评论

译制信息
视频概述

本视频介绍丹麦一个港湾内一艘靠着长长的电缆驱动的渡轮。

听录译者

收集自网络

翻译译者

枇杷弹琵琶

审核员

审核员GURU

视频来源

https://www.youtube.com/watch?v=MYqCWxdM4ww

相关推荐