關於未來的車子型態〈要英文〉 - 社會議題

By Elma
at 2010-01-07T00:00

Table of Contents

1.關於未來汽車的功能
2.關於未來汽車對人類的好處
(一定要英文, 最好附加中文)
急需~~~~~~~~拜託~~~~~~~~~~~~~
感激不盡!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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By Carol
at 2010-01-10T04:04

圖片參考：http://upload.wikimedia.org/wikipedia/commons/thum...
　Hydrogen vehicle
圖片參考：http://upload.wikimedia.org/wikipedia/commons/thum...
　Hydrogen fueling
A hydrogen vehicle is an alternative fuel vehicle that uses hydrogen as its onboard fuel for motive power. The term may refer to a personal transportation vehicle, such as an automobile, or any other vehicle that uses hydrogen in a similar fashion, such as an aircraft. The power plants of such vehicles convert the chemical energy of hydrogen to mechanical energy either by burning hydrogen in an internal combustion engine, or by reacting hydrogen with oxygen in a fuel cell to run electric motors.
Hydrogen fuel does not occur naturally on Earth and thus is not an energy source, but is an energy carrier. Currently it is most frequently made from methane or other fossil fuels. However, it can be produced from a wide range of sources (such as wind, solar, or nuclear) that are intermittent, or too diffuse, or too cumbersome to directly propel vehicles. Integrated wind-to-hydrogen plants, using electrolysis of water, are exploring technologies to deliver costs low enough, and quantities great enough, to compete with traditional energy sources.
Many companies are working to develop technologies that might efficiently exploit the potential of hydrogen energy for mobile uses. The attraction of using hydrogen as an energy currency is that, if hydrogen is prepared without using fossil fuel inputs, vehicle propulsion would not contribute to carbon dioxide emissions. The drawbacks of hydrogen use are low energy content per unit volume, high tankage weights, the storage, transportation and filling of gaseous or liquid hydrogen in vehicles, the large investment in infrastructure that would be required to fuel vehicles, and the inefficiency of production processes.
http://en.wikipedia.org/wiki/Hydrogen_vehicle
氫汽車是以氫（通常透過分解甲烷或電解水取得）為主要能量作為移動的汽車。
使用純氫為能源的最大好處是它能跟空氣中的氧，產生水蒸氣排出，有效減少了其他燃油的汽車造成的空氣污染問題。
氫汽車已經實現了，但仍須更多技術和配套，降低成本，才可以推出市場。一般的內燃機，通常注入柴油或汽油，會改為使用氣體氫。燃料電池和電動機會取代一般的引擎。氫會在燃料電池跟氧反應。
http://zh.wikipedia.org/zh-tw/%E6%B0%AB%E6%B0%A3%E...　
2010-01-08 18:12:38 補充：
高速車輛、巴士、潛水艇和火箭已經在不同形式使用氫。　

關於未來的車子型態〈要英文〉 - 社會議題

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