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Cryogenic pump at 4 K temperature level-basic hydro-dynamic design approach Vaghela H.1, Banerjee J.2, Naik H.2, Sarkar B.1 1ITER-INDIA, Institute for Plasma Research, Bhat, Gandhinagar-382428, India 2Sardar Vallabhbhai National Institute of Technology, Surat-395007, India Abstract Cryogenic cold circulating pump, an essential and critical component of fusion research reactor needs a systematic study due to future large pumping capacity requirements of the order ∼2.7 kg/s of helium fluid for the cooling of large superconducting magnets and cryo-adsorption vacuum pumps. Design of cryogenic cold circulating pump for helium at 4 K temperature level is diverse from the conventional pump design in some aspects due to distinct fluid properties and issues related to the very low temperature. The complex three dimensional geometries of the pump impeller, suction passage and volute restrict to achieve the complete design solution based on two dimensional design theories. Based on the input data for the future requirements of cryogenic cold circulating pump for helium, a basic design of its impeller is obtained. Suction passage and discharge passage of the pump is designed. Impeller blade profiles as well as volute profile are developed for the future application. Top Keywords Cold circulating pump, Hydro-dynamic design, Blade profile. Top | | | |
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