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Technical specification IT-3684

Explore the detailed technical requirements and specifications for the chiller system in the Thermosiphon project, including design, components, refrigerants, electrical aspects, documentation, and safety measures.

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Technical specification IT-3684

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  1. Technical specification IT-3684 by Elena Perez Rodriguez

  2. Thermosiphon project

  3. Introduction • This presentation will go through the technical specifications for the chiller system. • These documents have been sent to all the qualified bidders after the market survey 3684. • Questions will be answered at the end of the presentation. Thermosiphon project

  4. Scope of the tender Chiller and brine : design, selection & purchase of components, refrigerants for chiller, construction, skids, installation, connection and commissioning Fluid for the brine BRINE CHILLER UNIT(S) Electrical design, functional analysis, electrical/control components, cabling and electrical/control cabinets Documentation and labeling Spares (1 year & 10000 h) Primarywater Thermosiphon condenser and piping Terminal blocks, PLC and software (UNICOS)

  5. Documents to be sent with the tender General conditions for tendering • Refer to the purchase documents for more information Thermosiphon project

  6. Delivery schedule December 2011 October 2011 September 2011 April 2011 March 2011 Thermosiphon project

  7. Technical requirements • Brine circuit • Mono-phase liquid C6F14. • Materials shall be compatible with fluorocarbons. • Chiller units • Two circuits in cascade (high and low temperature). • Refrigerant to be chosen by contractor. Thermosiphon project

  8. C3F8 condenser 180 kW -70 °C Chiller configuration I Back-up 50 kW -20 °C Brine circuit Redundant pumps Primary water 27°C liquid tank CHILLER 3 50% power for nominal operation C6F14 brine circuit Surface USA15 cavern CHILLER 2 50% power for nominal operation UX15 cavern ATLAS ID Detector CHILLER 1 50% power for nominal operation Thermosiphon project

  9. Power supply : configuration I 30 kW 45 + 45 kW 25 kW Diesel power supply Standard power supply 45 kW 45 kW 45 kW 45 kW Thermosiphon project

  10. P&I for the configuration I Thermosiphon project

  11. Chiller configuration II C3F8 condenser 180 kW -70 °C Back-up 50 kW -20 °C Primary water 27°C Brine circuit Redundant pumps liquid tank CHILLER 4 100% power for nominal operation Redundant C6F14 brine circuit Surface USA15 cavern CHILLER 5 For emergency situation UX15 cavern CHILLER 6 For emergency situation ATLAS ID Detector Thermosiphon project

  12. Power supply : configuration II 30 kW 25 kW 180 kW Diesel power supply Standard power supply 20 kW 20 kW Thermosiphon project

  13. P&I for the configuration II Thermosiphon project

  14. Design Operation and reliability Other Seismic requirements Sound level Reliability and risk analysis • Power regulation • 20 ÷ 100% • Temperature regulation • 20°C ÷ -70°C • Precision ± 1 K • Compressor • MTBF > 40,000 h • MTTR < 10 h • Chiller system • MTBF > 20,000 h Thermosiphon project

  15. Integration Integration responsible: Alexander Bitadze To be approved by CERN’s safety team. Visit on site in the afternoon. Thermosiphon project

  16. Assembly • All the components shall be pre-assembled in metallic frames (skids) • Maximum dimensions : 14m x 2.5 m x 3 m • 15 tons • Control and electrical cabinets will also be pre-assembled • Space will be leaved for the PLC and the terminal blocks provided by CERN. • The insulation shall be protected with an stainless steel cover. Thermosiphon project

  17. Factory tests The procedures and reports of all the tests shall be supplied Thermosiphon project

  18. Delivery, installation and commissioning at CERN Delivery and installation Commissioning Done in collaboration between CERN and the supplier. CERN will provide the pre-tested program (according to the functional analysis). CERN will provide a dummy load for the tests phase. • Transport and handling of the system to CERN Point 1 (Switzerland) • The installation shall be performed by the contractor. • The contractor staff shall have the adequate training. CERN will provide its domain-specific training. Thermosiphon project

  19. Maintenance • Maintenance • Preventive maintenance plan and spare parts list provided by the contractor. • The Preventive Maintenance Plan shall be done during nominal operation at full power The chiller units shall be electrically independent including instrumentation Thermosiphon project

  20. Quality assurance • Documentation general • Documentation in English or French. • In a computer readable and editable form • Labeling • The components shall be identified with labels. • Technical documentation • Templates for: Technical dossier (STA), Functional analysis, spare parts and installed parts list. • Preventive Maintenance Plan shall also be provided Thermosiphon project

  21. Safety Thermosiphon project

  22. Annexes Thermosiphon project

  23. Conclusions • An overview of the specifications for the chiller has been shown. • More details can be found in the technical documents. • The bidders are required to price the different options for the two configurations in the price list. Thermosiphon project

  24. Thank you for your attention Any questions ? Thermosiphon project

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