Journal Article Conventional facilities of the linear IFMIF prototype accelerator (LIPAc)

Pruneri, Giuseppe  ,  P.Cara  ,  R.Heidinger  ,  春日井, 敦  ,  Knaster, Juan  ,  大平, 茂  ,  奥村, 義和  ,  坂本, 慶司  ,  members of LIPAc Integrated Project Team, All

The International Fusion Material Irradiation Facility (IFMIF) aims at qualifying and characterizing mate-rials capable to withstand the intense neutron flux originated in the D-T reactions of future fusion reactors by a neutron flux with a broad peak at 14 MeV, capable to provide >20 dpa/fpy on small specimens, also qualified in this engineering validation engineering design activity (EVEDA) phase. Its broad mandate has been successfully achieved, only pending the validation of its accelerator with its conventional facilities.The validation of the IFMIF’s accelerators will be achieved in this on-going phase, until December 2019, with the operation of a deuteron accelerator at 125 mA CW mode and 9 MeV, which is presently under installation and commissioning in Rokkasho (Japan).The target availability of the IFMIF facility, 70%, is one of its main challenges because it demands an extraordinary individual availability of the sub-systems, such as the accelerator, with 87%. The linear IFMIF prototype accelerator (LIPAc) presents a broad spectrum of ancillary equipment to optimize its operational beam time.A description of the nuclear HVAC of IFMIF has already been reported (Pruneri et al., 2016) [1].The present paper describes the design of the conventional systems of LIPAc, among which we address the electrical power supply, the heating, ventilation, and air conditioning (HVAC), the heat rejection system (HRS), the service water system (SWS), the service gas system (SGS), the cryoplant system (Cryo), and the fire protection system (FPS).

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