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Confidential Not for Distribution AFC Module Tender Action Scope The tender called for 2 AFC modules to be ordered immediately with the option for the.

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Presentation on theme: "Confidential Not for Distribution AFC Module Tender Action Scope The tender called for 2 AFC modules to be ordered immediately with the option for the."— Presentation transcript:

1 Confidential Not for Distribution AFC Module Tender Action Scope The tender called for 2 AFC modules to be ordered immediately with the option for the 3 rd module to be ordered later pending on funding. Supply to include Final engineering design, manufacture, at works acceptance test, delivery and on site acceptance test. Requested delivery from receipt of order for the 3 modules was:- Module 1 18 months Module 2 24 Months Module 3 30 months

2 Confidential Not for Distribution Pre-tender activities:- Intent to tender was advertised in the European Journal on 4 th April 2007 3 Companies in the USA were informed of the intent to tender From the spectrometer magnet list Cryomagnetics Inc, American Magnetics Inc and Wang NMR Pre-qualification questionnaires were sent out to those who expressed interest to bid. 5 companies expressed interest. They were:- Tesla Cryogenic Babcock Noell Accel ASG Superconductor Wang NMR claimed they did not receive the notification for pre-qualification. They were re-sent the notification and were subsequently included in the tender list. Pre-qualification meeting held on 22nd May Scientific Magnetics (UK) declined due to full order book. All those who responded positively were considered technically competent to bid for the project.

3 Confidential Not for Distribution Sequence of AFC tender activities:- AFC Technical Specification: Final Version issued on the 29 th of June Draft tender documentation prepared on 18 th of June Tender documentation included: Tender contractual documents Technical Specification Selection Criteria Drawing Package – referred to link:: http://www.physics.ox.ac.uk/design/MICE/MICE-AFC- dwg/AFC_Drawing%20Page1.htm http://www.physics.ox.ac.uk/design/MICE/MICE-AFC- dwg/AFC_Drawing%20Page1.htm Tender released on 29th June 2007 Deadline for bid return on 13th August Tender Review on 20th Aug

4 Confidential Not for Distribution Sequence of AFC tender activities:- Tender Review Tender Review Committee Members STFC R Elliot, T Bradshaw, E Baynham Oxford W Lau, J Cobb LBNL M Green MICE K Long – attended for summing up and actions Objective was to review 5 bids received against the preset evaluation criteria From the 6 companies invited to tender Cryogenics declined to bid

5 Confidential Not for Distribution Outcome of the tender review meeting The Tesla offers attained the highest overall evaluation marking Although WANG NMR bid the lowest price for the basic item, the overall cost was similar to the Tesla offer when cost of supervision was included. The Wang bid had very little information for evaluation against the set criteria. This made their overall evaluation marking very low and effectively excluded them from further consideration. The second offer in terms of evaluation criteria was Ansaldo. The Ansaldo bid was ~ 20% more expensive than Tesla. The committee agreed to proceed with a more detailed evaluation of the Tesla offer through a works visit

6 Confidential Not for Distribution Bid Clarification A bid clarification meeting was held with Tesla on the 27 th of September. Tesla M Begg, B Leigh, S Bates, R Fellowes, F Goldie, M Nakatsu Oxford J Cobb, W Lau STFC T Bradshaw, E Baynham Executive Summary Purpose and scope of the meeting Review Tesla Technical proposal in detail Assess Tesla staff and manufacturing facilities Schedule QA Clarification of contract points

7 Confidential Not for Distribution Bid Clarification - Executive Summary Review of Tesla Technical proposal Conductor Tesla confirmed their modelling of peak fields and operating margins Tesla are able to offer 2 conductors The specified conductor An alternative with higher critical/lower Cu:Sc – this will give more temperature margin but quench protection needs to be confirmed Both conductors are available as single piece lengths at no extra cost Quench Tesla have understood the issue about quenchback when/if the coil is not bonded to the mandrel Tesla have proposed an alternative quench spreading model which needs to be assessed in detail Tesla have a copy of the latest VF quench software and will use this for final design

8 Confidential Not for Distribution Bid Clarification - Executive Summary Review of Tesla Technical proposal Coil stresses Tesla have made initial studies using semi-analytic and VF Opera2D They understood the link between coil bonding and coil stresses The will use ANSYS for the final detailed studies – this is in progress Coil Mandrel and Former Primary electrical ground plane insulation is defined – inter-layer insulation is to be confirmed Coil manufacturing tolerance estimates were within acceptable levels The welding of the closure plates is a critical area. Tesla will make full scale weld tests to reduce risk, qualify welds and welders, qualify inspection methods.

9 Confidential Not for Distribution Bid Clarification - Executive Summary Review of Tesla Technical proposal Cold mass supports Tesla have made estimates of the worst case forces for the MICE modes Asymmetric quenching within a module could in principle lead to high forces – this needs to be analysed in more detail The manufacture and test of the support bands is understood – Tesla will work closely with an established manufacturer Thermal Design Tesla presented their methodology and analysis The principles were considered sound More detailed analysis will be made at the design stage

10 Confidential Not for Distribution Bid Clarification - Executive Summary Review of Tesla Technical proposal Cryocoolers Tesla are doing cooler connection and performance tests at their US company Everson Electric They understood the problems of operation in the stray fields Stray field maps need to be confirmed The requirements/feasibility for shielding studied The cooler choice would need to be made as part of the initial design study Overall Assembly and Tests Tesla proposals were discussed They proposed to revise the magnet vacuum vessel profile to eliminate conflict between the cold mass supports and vessel sealing welds Tesla have the capacity to do more detailed field mapping than specified – this will be at additional cost

11 Confidential Not for Distribution Bid Clarification - Executive Summary Review of Tesla Schedule and QA Schedule Requested - Module 1 - 18 months f.r.o. Offer – 12 months Requested - Module 2 - 24 Months f.r.o. Offer – 18 months Tesla schedule is aggressive RAL/Oxford – believe more time should be allocated at the design/review stage to get the design right Tesla schedule is based on delivery quotes for all the big items QA Tesla are ISO accredited Tesla are doing work with Fusion groups at ITER and MPI under QA control Basis is QIPP (Quality Inspection and production Plan) developed with ITER and now used on all projects – travellers for all elements within the overall structure

12 Confidential Not for Distribution Bid Clarification - Executive Summary Review Current Programmes Tesla have 3 main sc magnet projects at present W7X stellarator– coil manufacture, ITER conductor joint fabrication, Nb3Sn Coil fabrication (react and wind coil similar scale to AFC) Large programme of conventional gradient coils for MRI W7X work is due to finish end 07 – will release capacity Facilities and Personnel In-house facilities for coil winding and impregnation + personnel with experience In-house facilities for machining – except rolling large vessels – they claim this is important for their schedule Clean areas for vacuum testing to uhv and assembly of parts Personnel with expertise in magnet design, thermal design, project control

13 Confidential Not for Distribution Recommendations Summary of recommendations to the MICE TB The Tesla offer was the most competitive when assessed against the bid evaluation criteria and cost The offer is compatible with the MICE schedule with some margin The bid evaluation visit confirmed that Tesla had put a lot of effort into the bid preparation The design team was satisfied from the bid evaluation visit that Tesla have the combination of facilities and personnel to undertake the manufacture of the AFC modules Input will be required from the design teams at Oxford and RAL to ensure the design meets the MICE specification and is executed to the correct QA standards – this would be true for any bidder at some level The design team recommends that the MICE Technical Board approves the proposal to place the contract with Tesla

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