For more information, please contact 24/11/2010 EN/CV/DC Chiller design and purchase by Elena Perez Rodriguez

Index Introduction Technical specification – Design and configurations Purchase documents – Price list and adjudication formula – Risk matrix Conclusion 24/11/2010Thermosiphon project2

Introduction This presentation will go through both the technical and purchase documents. EDMS These documents and the annexed can be found in EDMS /11/2010Thermosiphon project3

TECHNICAL SPECIFICATION Overview of the design and the technical specification document 24/11/2010Thermosiphon project4

Technical specification Scope of the tender General conditions for tendering and contracting Technical requirements Design Assembly Commissioning Delivery and installation Maintenance Quality assurance Safety Main points 24/11/2010Thermosiphon project5

CHILLER UNIT(S) CHILLER UNIT(S) BRINE BRINE Scope of the tender 6 Primary water Chiller and brine : design, selection & purchase of components, refrigerants for chiller, construction, skids, installation, connection and commissioning Thermosiphon condenser and piping Thermosiphon condenser and piping Spares (1 year & h) Electrical design, functional analysis, electrical/control components, cabling and electrical/control cabinets Documenta tion and labeling Terminal blocks, PLC and software (UNICOS) Fluid for the brine

General conditions for tendering Pre-tender discussions Bidders conference (2 weeks after sending the IT) Questions and answers sent to all bidders 24/11/2010Thermosiphon project7 Technical and design P&ID, P-h diagram Dimensions and weights, general assembly drawings. Electrical power, compress air and water supply needed. MSDS for refrigerants and TDS for compressors, pumps and heat exchangers. Technical questionnaire. Reliability and risk analysis. Organization Work site organisation, preliminary schedule, project team. Working methods, protection means and test methods for commissioning. Purchase Price List. Tender form. Documents to be sent with the tender

Adjudication of the contract Finance committee (16 march) Detailed design Functional analysis Detailed design Planning CERN approval of design Delivery Delivery of the skids at CERN. Installation Commissioning Commissioning on the by-pass. Acceptance of the equipment. Delivery schedule Thermosiphon project8 March 2011 April 2011 September 2011 October 2011 December 2011

Technical requirements Chiller units – Two circuits in cascade (high and low temperature). – Refrigerant to be chosen by contractor. 24/11/2010Thermosiphon project9 Brine circuit – Mono-phase liquid C 6 F 14. – Materials shall be compatible with fluorocarbons.

Chiller configuration A 24/11/2010Thermosiphon project10 C3F8 condenser 180 kW -70 °C liquid tank USA15 cavern Surface C6F14 brine circuit Primary water 25°C CHILLER 3 50% power for nominal operation ATLAS ID Detector UX15 cavern Back-up 50 kW -20 °C Brine circuit Redundant pumps CHILLER 2 50% power for nominal operation CHILLER 1 50% power for nominal operation

P&I for the configuration A 24/11/2010Thermosiphon project11

24/11/2010Thermosiphon project12 Chiller configuration B liquid tank USA15 cavern Surface C6F14 brine circuit Primary water 25°C CHILLER 4 100% power for nominal operation Redundant CHILLER 5 For emergency situation ATLAS ID Detector UX15 cavern C3F8 condenser 180 kW -70 °C Back-up 50 kW -20 °C Brine circuit Redundant pumps CHILLER 6 For emergency situation

P&I for the configuration B 24/11/2010Thermosiphon project13

Configurations: advantages and disadvantages 24/11/2010Thermosiphon project14 Configuration AConfiguration BComments Not impact on operation for preventive maintenance Higher risk of impact on operation of preventive maintenance Mitigation : use of the brine circuit. Circuit redundancy Not impact on operation for single failures Mechanical redundancy Impact on operation for failures in no-duplicated components. Impact on operation in case of degradation of the circuit. Mitigation : use of the HAUG station. Power requirements: Standard power 160 kW Diesel power 75 kW Power requirements: Standard power 205 kW Diesel power 50 kW Depends on electrical services in Point 1. Balanced operation of compressors.Unbalance operation of the compressors. Mitigation : schedule for running the emergency chiller units. Easier operation and control logic ?More complicated operation and control logic ? This is not for sure Less spare parts required ?More spare parts required ? The thermosiphon works with BOTH solutions The HAUG station will be a back-up Difference in costs is unknown The thermosiphon works with BOTH solutions The HAUG station will be a back-up Difference in costs is unknown

Chiller configuration A 19/11/2010Thermosiphon project15 Standard power supply Diesel power supply 30 kW 45 kW 25 kW kW 45 kW

Chiller configuration B 19/11/2010Thermosiphon project16 Standard power supply Diesel power supply 25 kW 180 kW 20 kW 30 kW

Design Operation and reliability 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 Other Seismic requirements (Olga Beltramello) Sound level (Flora Galvan) Reliability and risk analysis 24/11/2010Thermosiphon project17

Integration 24/11/2010Thermosiphon project18 To be approved Will be shown in the bidders conference

Assembly 24/11/2010Thermosiphon project19 Pre-assembled in metallic frames (skids) Control and electrical cabinet will also be pre-assembled

Assembly and commissioning 24/11/2010Thermosiphon project20 Commissioning In the contractor premises Welding inspection 100% visual inspection 10% X-rays Pressure and leak tests Compliant with PED Electrical mapping At CERN Performance tests with dummy load

Maintenance and documentation Maintenance – Preventive maintenance plan and spare parts list provided by supplier (CERN template). – Preventive maintenance shall be done during nominal operation at full power. Documentation – Templates provided for: Technical dossier (STA), Functional analysis. – Labeling 24/11/2010Thermosiphon project21

PURCHASE DOCUMENTS Adjudication formula explanation, options and chosen solution. Risk matrix 24/11/2010Thermosiphon project22

Adjudication: options Adjudication on one option The adjudication is done comparing the price of one of the options. Risk: the company has no incentive whatsoever to put a low price in the options. Adjudication on the cheapest option for each supplier The adjudication is done comparing the cheapest option for each supplier. Risk: the technical option that will be purchased is not decided by us but by the cheapest of all the offers. Adjudication on the global price The adjudication is done on the global price for all the options Risk: the chosen company could not be the cheapest for the technical option required. 19/11/2010Thermosiphon project23

Adjudication formula 24/11/2010Thermosiphon project24 IT-3684/EN/ATLAS - DQE - DESCRIPTION AND QUANTITY ESTIMATE Chapter 2 - Option B CHILLER 3 ChapterCost High temperature circuit 301Compressor 302Oil recuperation circuit 303Primary water condenser 304Heat exchagner with low temperature circuit 305Brine circuit evaporator 306Expansion vessel 307Fluid Low temperature circuit 308Compressor 309Oil recuperation circuit 310Brine circuit evaporator 311Expansion vessel 312Fluid General 313Valves 314Piping and insulation 315Instrumentation 316Electrical components (including cabinets) 317Metallic frame (skid) 318Mechanical assembly 319Electrical connection 320Spare parts for one year & h of compressors 321Tests Total price for chiller 3 Total price for option B Configuration A ChapterCost A1Option A A2Option B A3Option F Configuration B ChapterCost B1Option C B2Option D B3Option E B4Option F Spare parts ChapterCost C1Spare compressor(s) for configuration A C2Spare compressor(s) for configuration B Adjudication price Conf A + 1.1*Conf B + Spare comp A + Spare comp B 2

Adjudication Practical example CompanyConfiguration A Configuration B (penalization 10%) Price for Adjudication I (price)100 I (adjudication) II (price)11080 II (adjudication) III (price)90100 III (adjudication) /11/2010Thermosiphon project25 Adjudication price Configuration A + 1.1*Configuration B + Spare comps 2

Risk matrix 24/11/2010Thermosiphon project26

Conclusions An overview of the design of the chiller has been shown. The adjudication formula has been justified and discussed. The risk matrix has been presented. 24/11/2010Thermosiphon project27

Thank you for your attention 24/11/2010Thermosiphon project28 Any questions ?