1 / 19

WP 11: DETECTOR COOLING Outline of the Talk

WP 11: DETECTOR COOLING Outline of the Talk. WP mandate Human resources implicated 2009 investment Status and plans of projects (2010 – 2011) Ideal “White Paper” budget 2010 – 2011 Mid- & long-term perspectives. WP 11 Mandate (June 2009). Future ( CO 2 ) Cooling Plants

feoras
Download Presentation

WP 11: DETECTOR COOLING Outline of the Talk

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. WP 11: DETECTOR COOLING Outline of the Talk • WP mandate • Human resources implicated • 2009 investment • Status and plans of projects (2010 – 2011) • Ideal “White Paper” budget 2010 – 2011 • Mid- & long-term perspectives

  2. WP 11 Mandate (June 2009) • Future (CO2) Cooling Plants • 1.1 Construction of a functional CO2 “Proto-0” at Cryolab • 1.2 Two-Phase flow in CO2: models and correlations • 1.3 Design and construction of a standardized complete “portable” 2kW (?) unit • 1.4 Process modeling and dynamic simulation • “On Detector” Thermal Management • 2.1 Materials for thermal contact • 2.2 Structural materials with high thermal conductivity • 2.3 Local cooling through Micro-channels • Leak Search and in-situ Repair • 3.1 From “leak rates” to “fluid loss” • 3.2 Leak repair methods • 4.New Instrumentation • 4.1 Optical fibre-based Relative Humidity sensors (FOS) Agreed with PH management and experiments + endorsed by DCP NOT COVERED IN THIS TALK • Support to ATLAS and CMS cooling systems both on M&O and on specific R&D and refurbishment programmes

  3. Human Resources for General R&D (2009-10) • External Post-docs and “stagiaires” (~ 3 / year) • 1 Summer student (from June 2010) • Jobs descriptions for trainees posted (2) • Punctual use of technicians from ATLAS and CMS

  4. July 2009: Start of Activity White Paper expenditure 2009 - TOT: 109 kCHF (Material + subs. CERN personnel excluded) 31% 23% 17% 12% 11% 6% New PH-DT cooling lab 4 – 5 experimental areas Temporary office space Small meeting space Instrumentation, test stand, DAQ

  5. Equipment Available • Flexible and complete NI-based DAQ system • Miniaturized RTD and capacitive sensors for temperature and relative humidity measurement • General lab equipment (precision scale, RH calibration salts, magnifying glass, etc…) • A small portable dew point meter (Xentaur LTDP) • A -70 C dew point dry air source • Custom made temperature controlled environmental chamber connected to a gas mixer • One ad hoclight attenuation interrogation/DAQ system for tip-coated optical fibre sensors (planned for substitution with a new wavelength interrogation/DAQ system for multiple FBG or LPG sensors in 2010). • Two small water-glycol cooling units, each capable of few hundred Watts cooling power at -20 C. • A large C6F14 cooling unit with cooling power in excess of 3kW @ -25 C and 6 bar head loss capacity, pressure-boosted up to 15 bars for reduced flow rates. • Owned set of tools and components for piping, circuitry preparation and small electro-mechanical works. • Programmable RTD and signal simulators for the commissioning of new PLC-based control loops. • A high precision capacitive absolute manometer MKS “Baratron” • An EdgeTech “Dewmaster DM-C1” hygrometer with a 3 stage Peltier-cooled chilled mirror head for precise absolute humidity reference down to dew points of the order of -75 ˚C • Two KrohneOptimassCoriolis flow meters • …

  6. Status of 4.1 (RH FOS) 0.4 FTE Expenditure 2009: 18.5 kCHF Budget 2010: 48 kCHF Collaborations: TE/VSC, Napoli, Sannio (possibly Wuppertal to join?) • Test set-up complete • Measurement principle proven • One morphology of tip-coated SnO2 sensor validated • Static and dynamic behaviour analysed between +20 and -20 °C

  7. Plans for 4.1 (RH FOS) Complete the characterization of SnO2refractometric (tip-coated) sensor with particular emphasis on reproducibility and T/RH calibration Objective: full characterization of the sensor (including radiation hardness, reproducibility and production yield) by END 2010 • Launch the study of LPG-based multi sensors; • Material investigated: SnO2, TiO2, Al2O3 and SW-CNT; • Deposition techniques: Sol-gel (Sannio), Evaporation (CERN), Sputtering (CERN); • K-contract in preparation Objective: Definition of the best suited coating, proof of feasibility of the deposition techniques by END 2011

  8. Status of 2.3 (m-channel cooling) 2.2 FTE Expenditure 2009: 12 kCHF Budget 2010: 5 kCHF Collaborations: Louvain, EPFL-LMIS4, EPFL-LTCM, (Several potential partners discussing) • Test set-up complete • Silicon-Pyrex prototypes produced • Pressure burst tests ongoing • Fluid dynamic calculations for geometry optimization • Structural calculations for manifold dimension and wall thickness optimization

  9. Plans for 2.3 (m-channel cooling) • Consolidation of the manifolds and m-channel design methods • Optimization of the manufacturing technique (e.g. Pyrex thinning…) • Feasibility of Silicon-on-Silicon fusion bonding technique Objectives: 1) Well mastered design & production technique: END 2010 2) Sound and validated proposal for NA62 GTK: END 2010 • Integration of cooling chip into GTK module • Minimization of material in sensitive area • Feasibility of evaporative CO2 heat transfer Objectives: 1) m-cooling / GTK module integration: MID 2011 2) Reliable assessment on minimal material and CO2: END 2011 • Preliminary engineering of configurations of potential SLHC interest (e.g. trigger layers, phase-2 PIX upgrades, etc): 2011 • Partnership with CMOSAIC (EPFL, ETH, IBM & others: http://esl.epfl.ch/page78902-en.html) to study integration in 3D architectures: 2011

  10. Status of 1.3 (CO2 models and correlations) • Application-driven tests ongoing in DT on pressure/temperature drop in long mini-pipes (straight and multi-bent geometry) • Highly accurate base measurements ongoing at Cryolab on HTC and flow regimes in mini-pipes • HTC and flow parameter test ongoing at Esslingen on long Ø12 mm pipes • Data provided to EPFL-LTCM for model enhancement for CO2 applications 0.5 FTE Expenditure 2009: 0 kCHF Budget 2010: 0 kCHF Collaborations: TE/CRG (CryoLab), Esslingen, EPFL-LTCM, + many institutes from experiments

  11. Plans for 1.3 (CO2 models and correlations) • Continue the activity throughout 2011 • Act as a link between HEP laboratories and external institutes • Create a database / repository of the produced information • Disseminate good practice for test and design • Interact with EPFL-LTCM towards optimized models for CO2 designers

  12. Status of 1.1 / 1.2 (CO2 plants) 1.1 FTE Expenditure 2009: 13 kCHF Budget 2010: 36 kCHF Collaborations: NIKHEF, EPFL-LTCM, TE/CRG (CryoLab) + many institutes from experiments • The prototype of a new CO2 2PACL cooling unit (based on the LHCbVeLo system) is complete and tested for leaks • All controls and monitors are cabled and commissioned • Waiting for SC agreement for the final high-pressure (~100 bar) safety test in order to start warm operation • Accumulator (needed for cold operation) in fabrication / qualification at NIKHEF (expected in few weeks) • Constant analysis of the market for new components to appear, allowing for possible new solution

  13. Plans for 1.1 / 1.2 (CO2 plants) • Launch full operation of the CO2 prototype • Provide a test facility available for the experiments (piping, staves, etc) • Test new components, verify / modify controls • Make experience of use and train engineers and technicians Objectives: 1) Test station available: SUMMER 2010 2) Operational life: EXTEND BEYOND 2011 • Compact and simplify the design of the prototype into a standard “rackable” unit with 1-2 kW power @ -40 °C • Procure components and assemble a first unit Objectives: 1) Design of compact unit: END OF SUMMER 2010 2) First compact unit assembled: END 2010 (cost and delay time for accumulator to be verified) • Procure or design and assemble a small (~ 100 W) unit, not necessarily “oil-free” • Commission the unit and propose for wide distribution for small-scale tests Objective: Unit available for distribution: MID 2011

  14. Status of 3.1 / 3.2 (Leaks) • Leak investigation: new enhanced rack for leak search including high precision absolute manometer and reference volume in assembly phase • Leak quantification: old set-up previously used for work on translation of He leaks into liquid CnF2n+2 loss being refurbished • Remote leak repair: Test section to investigate the “fluid” proposed in assembly 0.4 FTE Expenditure 2009: 0 kCHF Budget 2010: 40 kCHF Collaborations: TE/VSC, Krakow (Discussion ongoing with other potential partners for 3.2)

  15. Plans for 3.1 / 3.2 (Leaks) • Several “unconventional” methods of remote leak detection investigated at Krakow (k-contract in preparation). In particular the use of acoustic detectors Objective: Detailed report on methods for remote leak detection and analysis suited for HEP detectors: MID 2011 • Extensive tests (fluid dynamics, chemistry, physics, geometrical compatibility, etc) on the proposed sealant agent (“Seal-Up”) both for water and for CnF2n+2 circuits Objective: Detailed report of possibility of use of the sealant agent: END 2011 ? • Investigation to find a partner to study more exotic (active) devices for remote leak repair ongoing…

  16. Status and Plans for 1.4 (Process Modeling) 0.8 FTE Expenditure 2009: 0 kCHF Budget 2010: 5 kCHF Collaborations: Grenoble, EN/ICE, EPFL-LTCM (possibly Krakow) • Move from Cryo experience (EN/ICE) and apply the technique to cooling systems • Check validity of existing objects • Modification of some components • Integrate CO2 data from REFPROP and from LATEST ENHANCED MODELS • Investigate new components • Condenser • Evaporator Mi-1,j Mi,j Ei,j Ei-1,j Ei+1,j Objective: Develop a dynamic simulator modeling the full process of the CO2 prototype END 2011 ρi-1,j ρi,j ρi+1,j

  17. Status and Plans for 2.1 (Thermal Materials) 1.0 FTE Expenditure 2009: 0 kCHF Budget 2010: 45 kCHF Collaborations: EN/MME, EPFL-LPMC, CNR-Napoli, experiments • Launch activity on definition of new generation thermal adhesives • Assumed benchmark: Al Technology ME7159 diamond-filled epoxy (~ 11 W/mK) • Investigate SU-8 doping with diamond and with CNT’s (EPFL) • Investigate doping of Araldite 2011 epoxy and of an RTV silicon with metal nano-wires, diamond nano-particles and CNT’s (CNR Napoli) Objective: Detailed reports on doping methodologies and obtained results with different adhesives: END 2011

  18. Allocation of “White Paper” Financial Resources 4 x (projects 2009) + 40% Equipment 2009 + Travel / Training • 2009 : effective expenditure • 2010 – 11 : “optimal” projection for fixed objectives • Included: • Equipment • Material • Consumables • External collaborations • Subsistence • CERN Manpower not accounted for

  19. Mid- & Long-Term Perspectives • Relative Humidity FOS: Follow-up the engineering and industrialization of the selected sensor(s) • Micro-channel cooling: Ensure full integration in the NA62 GTK module • Engineer solutions of interest for SLHC (and ILC) • CO2 cooling: Develop (and maintain?) laboratory cooling units (2 scales) • Collaborate to future CO2 cooling plants for experiments • Remote leak search and repair: long-term activity to be continued • Process modeling: Develop a standardized tool for use in all experiment for commissioning, enhanced operation and training • Thermal materials: Follow-up the engineering and industrialization of the selected solutions

More Related