The Prototype of Metal Hydride Hydrogen Compressor with Heat Pump

Abstract The metal hydride materials are characterized by a high pressure gradient as a function of temperature, which has been used in the construction of a compressor that compresses hydrogen by a chemical-thermal cycle. The present paper describes a prototype of a metal hydride compressor working using a heat pump that provides thermal management between metal hydride containers. The principle of the compressor is to use a suitable metal alloy that can absorb and desorbed hydrogen into its intermetallic structure. By heating the alloy, there is a significant increase in pressure, which makes it possible to compress hydrogen without directly contacting the moving parts, thereby increasing process safety.

Keywords hydrogen, metal hydride alloy, metal hydride compressor, heat pump.

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Engineering Journal: The Prototype of Metal Hydride Hydrogen Compressor with Heat Pump

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