• Title/Summary/Keyword: 액체금속

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Analysis of Joints Using Metal Seals in Liquid Rocket Engine Turbopump (액체로켓엔진 터보펌프의 금속 실 체결부 해석)

  • Yoon, Suk-Hwan;Jeon, Seong Min;Kim, Jinhan
    • Journal of the Korean Society of Propulsion Engineers
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    • v.17 no.6
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    • pp.105-112
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    • 2013

  • Turbopump is typically an assembly of rotors and casings, and there are a number of joints between them. Every joint should be leak-proof, so there is always a seal to accomplish the goal. Among various seals, metal seals are advantageous in that they are robust at high pressure, and at wide range of temperature. In this study, flange joints using conical seal made of stainless steel, solid flat metal seal made of copper and metal C seal made of Inconel 718 were structurally designed and analyzed, considering both initial tightening and operating conditions.

  • https://doi.org/10.6108/KSPE.2013.17.6.105 인용 PDF KSCI

Transported Metal ton by Crown Ether through Liquid Membrane (Crown Ether에 의한 액체막을 통해서 금속이온의 수송)

  • 남기열;류정욱이기창홍장후
    • KSBB Journal
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    • v.8 no.4
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    • pp.370-374
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    • 1993

  • In transportation the amount of metal ion by crown ethers, dibenzo-18-crown-6 were investigated using ultraviolet spectrometer. Transported the amount of one valence metal ion as $K^+ and Li^+}$ was not so much. On the other hand, two valence metal ion increased by dibenzo-18-crown-6, which means that the ionic charge and hydration of two valence metal ion affected the carrying ability of crown ethers. The carrying ability of dibenzo-18-crown-6 was, therefore, adequate for two valence metal ion as $Ca^{2+}$ and $Ba^{2+}$. It was also suggested that transport metal ion by crown ethers, which is related rather the catching ability than the selectivity of metalion.

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