金屬氫化物氫壓縮機與儲氫合金之研究開發 (II) (III);On the Study of Thermal Compressor and Its Hydrogen Storage Alloys

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題名:	金屬氫化物氫壓縮機與儲氫合金之研究開發 (II) (III);On the Study of Thermal Compressor and Its Hydrogen Storage Alloys
作者:	李勝隆
貢獻者:	國立中央大學材料科學與工程研究所
關鍵詞:	材料科技;能源工程
日期:	2012-12-01
上傳時間:	2014-03-17 11:53:06 (UTC+8)
出版者:	行政院國家科學委員會
摘要:	研究期間：10108~10207;For solving the energy shortage and environment problems, people who concerned have invested many fund to mass produce the motorbike and car which powered by fuel cell in the past ten years. The high pressure seems the only way to transport hydrogen for commercial applications. But the supplied high pressured hydrogen vessels in our country, which hydrogen pressure are under 120 atm can’t offer the academic and industry’s requirement. Hydrogen storage alloy is not only a medium of hydrogen transportation, but also a way to press hydrogen into high pressure by using the temperature-pressure property(Van’t Hoff law). The hydrogen storage alloys can reach the goal of “thermal energy”-“mechanical energy” transportation by absorbing hydrogen at low temperature and desorbing high pressured hydrogen at high temperature. The “Metal hydride hydrogen compressor” which built by Van’t Hoff law is a chemical compressor. It has the advantages which are no noise, low energy wasted, high safety and can release high purity hydrogen. In this proposed research, a 3-year period research, which is based on “the superior properties and the requirements to industry” has been organized. We decide to reach the goal of “develop and complete the one-steped hydrogen compressor which can release above 400 atm hydrogen pressure under 200℃” in 1st and 2nd year and complete the compressor which can release hydrogen over 400 atm under 100℃ in 3rd year. Our final goal is that all the “thermal compressor and hydrogen storage alloys” can be manufactured in our country. The working schedule of every years are listed below: 1st year(In Progress): Develop and improve the alloys which are used for one-stepped hydrogen compressor(the alloys can release over 300% hydrogen pressure at room temperature). 2nd year(Re-Application): (i)Build up the one-stepped hydrogen compress system and alloys(200 atm, ≦200℃). (ii) Build up the alloys for Two-steped hydrogen compressor(the alloys can release over 300 atm hydrogen pressure at room pressure)) 3rd year(Re-Application): Complete the two-steped hydrogen compressor and the alloys(400atm, ≦100℃). High efficiency compressor is decided by the properties of hydrogen storage alloys which have been used. In general, the most basic requirements for the alloys is that the alloys can release high pressure hydrogen at low temperature. So the alloys should have the properties which are high plateau pressure and low hysteresis. In the present day, AB5 type and AB2 type hydrogen storage alloys are used for hydrogen compressor mostly. We had been researched on synthesizing and ameliorating hydrogen alloys for many years and had been obtained many patents. Moreover, applicant had been set up the hydrogen storage properties testing system and had the ability of building the instrument of the testing system. This study which is based on available foundation will carry out: (1) Improve the hydrogen compressor’s performance by reforming the hydrogen storage alloys(AB5 and AB2 types) and find the feasibilities of other types of alloys. (2) Build the “metal hydride hydrogen compressor” which “can change the modes of one-steped and two-steped compress”. It can release over 200 atm hydrogen pressure in one-steped mode under 200℃ and can raise the hydrogen pressure from 80 atm to 400 atm in two-steped mode under 100℃. As applicant know, there are many researching groups had invested in this study overseas(especially in China)(as shown in paper reivew). But there are no academic groups have touched this study in our country besides ITRI. We had built the first “one-steped hydrogen compressor” in our country. All of the hydrogen storage alloy, temperature controlled system, system design and data acquisition system were completed by ourselves. The compressor is testing now. For reaching the goal of this study, all of the researchers will learn more knowledge by hydrogen storage modifying, instrument setting and using. We hope that we’ll complete the goal by the foundation we already had andthe result of researching can provide advantages to academic circle and industry.
關聯:	財團法人國家實驗研究院科技政策研究與資訊中心
顯示於類別:	[材料科學與工程研究所 ] 研究計畫

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