Cryogenics Work Package 5: PERLE Project Overview
The Cryogenics Work Package 5 for the PERLE project involves defining the cryogenic architecture, assessing operational modes, proposing a distribution system design, and specifying the cryoplant. The objectives include defining cooling requirements, production and distribution chains, and conducting an engineering study. The project aims to address dynamic heat loads and develop a medium-scale cooling system with large turndown capability. Key tasks include requirements specification, cryoplant design, and control system implementation.
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Presentation Transcript
Work Package 5 : Cryogenics P. DUTHIL H. SAUGNAC M. PIERENS September 28th 2022
Work Package 5 : Work Package 5 : Cryogenics Cryogenics - - Status Status Context What to cool down: 1 accelerating device = SRF elliptical cavity (f~ 802 MHz) 1 feeding device = RF power coupler 2 or 4 (TBC) HOM couplers (and probes) = {RF package} Distributed in 3 sets: 1 Booster (injection chain) o 5 RF packages 1+1 CMs (accelerating chain): o 4 RF packages 09/28th/2020 PERLE WP5 Cryogenics 2 2
Work Package 5 : Work Package 5 : Cryogenics Cryogenics - - Status Status Updated heat loads: Dynamic heat loads (due to RF) coarse estimate: 100 W per SRF cavity (!) ~400 W @ 2 K per CM ? for the booster PERLE s cooling needs (isothermal heat load @2 K only): ~1 kW For comparison, PERLE s 2 K heat loads o = 2x heat loads currently considered for MINERVA (MyRRHa) (~100 m long linac); o = 1/3 of European Spallation source installed cooling power (~400 m long linac); medium scale cooling system is needed (with large turndown capability) 09/28th/2020 PERLE WP5 Cryogenics 3 3
Work Package 5 : Work Package 5 : Cryogenics Cryogenics - - Status Status TDR objectives: Define the cryogenic architecture : User chain: what to cool, how and when Cooling power production chain: what to produce, how, where and when Cooling power distribution chain: how to cool down Asses the cryogenic operational modes of PERLE machine (modelling) Propose a preliminary design of the cryogenic distribution system : Provide preliminary sizing Propose a preliminary engineering study: design, building, installation and commissioning of the system Update project costs Specify the cryoplant (in view of a call for tender after the TDR) Fluids and powers Operation modes Installation phases 09/28th/2020 PERLE WP5 Cryogenics 4 4
Work Package 5 : Cryogenics Work Package 5 : Cryogenics WP organization for the TDR: Task 5.1: Task 5.2: Task 5.3: Task 5.4: Task 5.5: WBS WBS WP5: Cryogenics Requirements and general specification Cryogenic architecture Cryoplant Cryogenic Distribution System Control and Command system PBS PBS Refrigerator (Cold Box) Cycle compressors Cryogenic purifier Pure gas storage Gas analysing system WP6 IJCLab members: Patxi DUTHIL, Cryo Group Herv SAUGNAC, Cryo Group Matthieu PIERENS, Cryo Group Design office CRYOPLANT HELIUM RECOVERY, PURIFICATION AND STORAGE SYSTEM Purification system Helium recovery system Liquid helium storage Liquid nitrogen storage WP6 Partners: Jean-Pierre THERMEAU, APC-IN2P3 (CNRS) Cryogenic Distribution Lines Valves Boxes Auxiliary lines End Box (TBC) CRYOGENIC DISTRIBUTION SYSTEM Sensors PLC Signal coniitioners Cables and signal routing C&C architecture and modelling CONTROL & COMMAND SYSTEM 09/28th/2020 PERLE WP5 Cryogenics 5
Work Package 5 : Work Package 5 : Cryogenics Cryogenics - - Status Status Task Status: we started Task 5.1. Requirements and general specification A list of parameters was issued to be completed with values by the project members Task 5.2. General architecture Biblio is ongoing (methodology for modeling linac cryogenics is currently being developed for the Myrrha project and might be re-used for PERLE) 09/28th/2020 PERLE WP5 Cryogenics 6 6
Thank Thank you you for for your your attention attention 7
Work Package 5 : Work Package 5 : Cryogenics Cryogenics Opened questions What are we building: 250 MeV, 500 MeV, both? When? Together, lets set up the parameters of the machine 8
