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VOA慢速英语[农业报道]海浪能源有望被高度利用

2015-09-18    来源:普特英语听力    【      美国外教 在线口语培训
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Experts say that sun and wind are the richest sources of clean, renewable energy. But ocean waves also create powerful, clean energy. So, the U.S Department of Energy has announced a $1.5 million-dollar prize for the winner of a competition on how to capture that energy.

The Department of Energy says that waves and tides along U.S. coasts create about 1,420 terawatt-hours of energy a year. That is equal to the amount of energy produced by more than 330 nuclear power factories.

But today’s technologies can only capture about 20 percent of the energy from ocean waves. Jose Zayas is the director of the Wind and Water Power Technologies Office at the Department of Energy. He says 20 percent is too low for an investment in ocean wave energy to be economical. He says it needs to be up in the high 30 percent to 40 percent.

“…we believe that once you achieve that then the economic competiveness of this industry really comes to life and that’s really the target that we are shooting for.”

The Department of Energy has launched the Wave Energy Prize competition to encourage development of new technologies.

But developing new devices to capture wave energy can be difficult. Wave capture machines must operate in oceans

Competition organizers expect most of the new ideas to come from established energy companies as well as some universities and research centers. Mr. Zayas says testing the new technologies will be done in several steps using scaled models. A scaled model is a smaller form of a larger object or structure.

“We would have 1/50th scale testing where we would do the first fundamental evaluation of their performance, as well as making sure that they are on a pathway that can assure them success towards a prize…and near the end, we will have about 10 teams, it is our hope.”

The scaled models will be tested at the United States Navy’s large indoor testing pool near Washington. Machines at the pool can create ocean-size waves. Mr. Zayas says the models will be tested to show how much ocean wave energy they can capture.

The competition will not require the machines to produce electrical power. He says changing the mechanical kinetic energy into electrical energy is easy.

Mr. Zayas says the main goal of the Wave Energy Prize is to develop a new set of power producing technologies for the future. Developers of the best performing devices will receive prizes from $250,000 to as much as $1.5 million.

I’m Jonathan Evans.

文本来源于普特论坛[report整理] SENEWS-2015-06-08


专家认为,太阳和风能源是最富有的清洁和可再生能源。然而海浪也可以创造动力,清洁能源。所以,美国能源部宣布,将拨款150万美元奖励给能够掌控这股能源力量的人。

能源部表示,海浪和抄袭都沿着美国海岸线,每年创造了1420万亿瓦的能量。这相当于330多个核电站产生的能量。

但是如今的技能只能把从海洋能量中获取20%的能量。Jose Zayas是能源部风能和水能技术办公室主任。他认为20%的能源对于海洋能源投资的经济回报来讲太少。他还说这个数字需要提高到30%到40%.

“…我们认为,一旦能量目标达成,该行业的经济竞争才能真正服务于生活,这才是我们真正的目标所在。”

能源部颁布了一项风能奖鼓励大家开发新的技术。

但是发展新的技术来吸收海浪能源会很苦难。海浪能源设备必须安置在海洋里。

比赛组织者希望大部分的想法来自于能源公司和一些大学以及研究中心。Zayas说,测试新技术将会采用比例模型经过几个阶段来进行。比例莫是按照比例将大物体或者结构缩小之后的物体或结构。

我们将采用五十分之一的比例模型对其性能做出评估,同时能确保能够测试成功赢得奖项,差不多在最后阶段,我们希望有十个队伍。”
 
这个比例模将会在华盛顿附近美国海军的大型室内游泳池里进行。池里的机器能造出海浪大小的波动。Zayas说,该模型将被测试看看到底能吸收多少海浪能量。

此次比赛不需要机器发电。他说,机械动能转化为电能是非常容易的。

Zayas说,海浪能源奖项设立的主要母的是为未来开发一项新能源生产技术。最好的设备开发人员能拿到250000美元到150万美元的奖励。
 
我是Jonathan Evans



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