Abstract
A novel concept of a mechanical vacuum pump is presented and a prototype is described that is capable of operating at a low temperature of 25 K. Since gas density varies inversely with temperature, this pump delivers much higher mass flow rate at low temperature than at room temperature for a given size. Advantages of this concept are reduction in size and weight, when compared to a conventional pump scaled for the same mass flow rate at room temperature. A temperature gradient between the different pumping stages allows optimization of the exhaust pressure. This pump would be a solution for continuous tritium extraction and minimization of the mass inventory for fusion tokomaks fuel cycle control.
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© 1998 Springer Science+Business Media New York
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Périn, J.P., Cordier, J.J., Mathes, R. (1998). Progress Report of a Cryomechanical Hybrid Vacuum Pump Prototype. In: Kittel, P. (eds) Advances in Cryogenic Engineering. Advances in Cryogenic Engineering, vol 43. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-9047-4_83
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DOI: https://doi.org/10.1007/978-1-4757-9047-4_83
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4757-9049-8
Online ISBN: 978-1-4757-9047-4
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