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Hydride compressor : ウィキペディア英語版 | Hydride compressor A hydride compressor is a hydrogen compressor based on metal hydrides with absorption of hydrogen at low pressure and desorption of hydrogen at high pressure by raising the temperature with an external heat source like a heated waterbed or electric coil.〔(Metal hydride thermal sorption compressor )〕〔(Hydride compressor )〕〔(Investigation on a three-stage hydrogen thermal compressor based on metal hydrides )〕〔(Investigation on high-pressure metal hydride hydrogen compressors )〕 Advantages of the hydride compressor are the high volumetric density, no moving parts and reversible absorption/desorption, disadvantages are the high cost of the metal hydride and weight. ==History== The first applications of metal hydrides were made by NASA to demonstrate long-term hydrogen storage for use in space propulsion. In the 1970s, automobiles, vans, and forklifts were demonstrated.〔(Metal hydrides for vehicular applications: The state of the art )〕 The metal hydrides were used for hydrogen storage, separation, and refrigeration. An example of current use are hydrogen sorption cryocoolers〔(Evaluation of hydride compressor elements for the Planck sorption cryocooler )〕 and portable metal hydride compressors.〔(Metal hydride compressor )〕
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