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- W2176983035 abstract "Hydrogen is commonly used in space applications. As a chemical reactant, oxidation of hydrogen releases a high specific energy leading to high specific impulses for propellant systems. Also, it is a required reactant in fuel cells. The disadvantage of hydrogen is its low density, calling for an efficient storage system. QinetiQ and TNO-PML have examined hydrogen storage systems for space applications and the benefits that might result from using graphite nano-structures to store hydrogen at high density for long periods. A survey has established that 6% by weight hydrogen storage density in carbon nano-structures (see Figure 1 and Figure 2) is realistic now and approx. 15% by weight hydrogen is likely at a commercial level in a few years’ time. This article summarises applications that might benefit from high-density hydrogen storage. Potential applications have been selected in an evaluation and selection phase. For each selected application, a system with hydrogen storage in nano-structures is compared with a conventional system of equal functional performance and the required break-even value for hydrogen storage density in nano-structures has been established, with respect to overall system mass. Promising space applications for this technology at the current technology level of carbon nano-structures include inflatable structures, and in the near future fuel cells and cold gas thrusters." @default.
- W2176983035 created "2016-06-24" @default.
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- W2176983035 date "2003-06-26" @default.
- W2176983035 modified "2023-09-27" @default.
- W2176983035 title "Space Applications of Hydrogen Storage in Carbon Nano-structures" @default.
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- W2176983035 doi "https://doi.org/10.2514/6.2003-4733" @default.
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