Mu2e WBS 5.2 Muon Beamline Vacuum CD-2 Director's Review
U.S. DEPARTMENT OF ENEGY Office of Science Mu2e WBS 5.2 Muon Beamline Vacuum CD-2 Director’s Review Dave Pushka Muon Beamline Level 3 Manager 7/8/2014 Mu2e
Requirements Required vacuum level: PS TSu; 1 x 10-5 torr. DS TSd; 1 x 10-4 torr. o o Required vacuum pump down time: o o PS TSu; approximately 100 hours. DS TSd; approximately 100 hours. Required magnetic field for high vacuum pumps: o o PS TSu; approximately 500 Gauss. DS TSd; approximately 600 Gauss. Required magnetic field for backing and roughing vacuum pumps: o o PS TSu; approximately 100 Gauss. DS TSd; approximately 100 Gauss. Required pre-operational cleanliness for vessels: o o PS TSu; standard high vacuum cleaning and degreasing DS TSd; standard high vacuum cleaning and degreasing Mu2e 2 D. Pushka – CD-2 Review 7/8/14
Requirements Required operational cleanliness: o o PS TSu; minimize, but not eliminate vacuum pump oil back-streaming. DS TSd; minimize, but not eliminate vacuum pump oil back-streaming Appropriate windows and access ports must be provided as part of the enclosure for the Production Solenoid Appropriate window, ports and feedthroughs must be provided as part of the enclosure for the Detector Solenoid Vacuum lines (and other services) should be located to minimize penetrations in the detector shielding o Penetrations to the transport and detector solenoids should if at all possible come through the bottom, and if they cannot be through the bottom, then they should be away from the target region. In no cases should they penetrate the top. Mu2e 3 D. Pushka - CD-2 Review 7/8/2014
Design Conceptual designs for the PS end cap, the VPSP and the IFB are largely unchanged from CD-1. Changes to the vessels will be made as part of the next design iteration. Specifically: – The PS shape will be changed to use conventional pressure vessel design details. – The VPSP will have nozzles changed to better match the pump orientation and maximize conductance. – The IFB will be analyzed to evaluate the shape with respect to the vacuum loading. Mu2e 4 D. Pushka - CD-2 Review 7/8/2014
Design A remotely located large diffusion pump connected by a large diameter, high vacuum will evacuate the PS. Two directly mounted smaller diffusion pumps will evacuate the DS. Roughing pumps will also serve as the backing pumps for the diffusion pumps. Roughing systems will be tied together and roughing will be performed slowly to minimize the differential pressure across the anti-proton stopping window at the TSu/TSd interface. A first draft of the written interlock description has created. A P&ID has been created. Mu2e 5 D. Pushka - CD-2 Review 7/8/2014
Design For the PS, where a remotely located large diffusion pump connected by a large diameter, high vacuum will evacuate the PS: – Diffusion pump is located in the remote handling room where the radiation exposure is lessened. – Current design has two diffusion pumps, one to use, one as a hot stand-by unit. – Pumping capacity limited by the conductance of the high vacuum line between the PS and the diffusion pumps. Operating both pumps will have little affect on increasing the pumping speed. – Diffusion pumps are fitted with cold traps to reduce the oil backstreaming into the PS to improve cleanliness. Mu2e 6 D. Pushka - CD-2 Review 7/8/2014
Design For the DS, where two close coupled diffusion pumps mounted on the VPSP will evacuate the DS: – – – – Diffusion pumps are located inside the shielding. Current design has two diffusion pumps, both in use. Current design has two ports for additional pumps if required. Pump size limited by the available space between the VPSP and the shielding. – Diffusion pumps are fitted with cold traps to reduce the oil backstreaming into the DS to improve cleanliness. Mu2e 7 D. Pushka - CD-2 Review 7/8/2014
Changes since CD-1 Considered magnetic field as a design input to the vacuum pumping system. – Changed to diffusion pumps. Used outgassing rates from published literature for surfaces consistent with anticipated conditions. Vacuum requirements in the PS region increased (a higher quality, lower pressure level) due to primary target lifetime concerns. By-pass lines around the anti-proton stopping window at the TSu/TSd interface eliminated as they would not serve to protect the anti-proton stopping window in the event of a vacuum window failure in the PS. Mu2e 8 D. Pushka - CD-2 Review 7/8/2014
Value Engineering since CD-1 No formal value engineering exercises have been performed. However, in developing the P&ID, design decisions have been made to select the most cost effective solutions while meeting the requirements. Mu2e 9 D. Pushka - CD-2 Review 7/8/2014
Performance Gas loads used as inputs to the pumping system design are: – PS TSu; 0.9468 torr-l/sec. – DS TSd; 32.06 torr-l/sec. Pressures achieved at 10 hours of high vacuum pumpings are: – PS TSu; 5 x 10-5 torr – DS TSd; 6 x 10-4 torr Mu2e 10 D. Pushka - CD-2 Review 7/8/2014
Remaining work before CD-3 Prepare FESHM 5033 vessel calculations for the three vessels and the PS evacuation line which are part of this system: – Productions Solenoid End cap (PS) – Vacuum Pump Spool Piece (VPSP) – Instrumentation Feed Through Bulkhead (IFB) – PS high vacuum evacuation line Modify conceptual designs shown as required to meet safety requirements. Prepare FESHM 5033.1 vacuum window calculations for all thin windows not already covered as part of the vessels. Generate purchase specification (including drawings) for the PS, VPSP, and IFB. Generate design documentations for all portions of the system per chapter 4 of the Engineering Manual and have reviewed per chapter 5. Mu2e 11 D. Pushka - CD-2 Review 7/8/2014
Organizational Breakdown WBS 5.2 Muon Beamline Vacuum WBS 5.2.0 Project Management WBS 5.2.1 PS Enclosure WBS 5.2.2 DS Enclosure WBS 5.2.3 Solenoid Inteconnects WBS 5.2.4 Vacuum Pumping Mu2e 12 D. Pushka - CD-2 Review 7/8/2014 WBS 5.2.5 Controls and Interlocks
Quality Assurance Procured vessels and pipe (PS, VPSP, IFB, vacuum lines) will be helium mass spectrometer (HMS) leak tested to verify the specified leak rate is achieved prior to installation. HMS leak testing will be repeated after installation to locate leaks should the system not pump down as the calculations predict. Mu2e 13 D. Pushka - CD-2 Review 7/8/2014
Risks Major risks include: – Outgassing rates that exceed the values used to size the vacuum pumping equipment – Leak rates that exceed the values used to size the vacuum pumping equipment – Building and shielding size limitations that preclude installing larger capacity pumps and evacuation lines Mitigation strategies include: – Reducing surface area of vacuum space – Reducing materials in the vacuum space – Waiting a longer time for the outgassing to decay before achieving the required vacuum level. – Repairing leaks. Mu2e 14 D. Pushka - CD-2 Review 7/8/2014
Risks Cost/schedule impacts if these risks are realized: – If an external leak is causing the vacuum to remain too high, it will take some time to locate and repair the leak. – If an internal leak (perhaps from the tracker) is causing the vacuum to remain too high, it will take some time to locate and repair the leak or add more pumps to compensate for the leak. – Will increase labor costs for the effort to locate and repair the leak or procure and install more pump capacity. Minor risks include vessels that do not pass the preinstallation helium leak test initially and require repair. – May not affect the overall schedule so long as the vessel procurements are not on the critical path. Mu2e 15 D. Pushka - CD-2 Review 7/8/2014
ES&H FESHM (the Fermilab Environment, Safety and Health Manual) includes chapters which directly apply to the vacuum vessels and vacuum windows used on this system. Engineering notes will be necessary to show vessels meet the requirements. These engineering notes also provide a quality assurance that the designs will safely hold vacuum and will not collapse. Mu2e 16 D. Pushka - CD-2 Review 7/8/2014
Cost Distribution by L4 Base Cost by L4 (AY k) Mu2e 17 D. Pushka - CD-2 Review 7/08/14
Cost Distribution by Resource Type Base Cost (AY k) Mu2e 18 D. Pushka - CD-3a Review 7/08/14
Quality of Estimate Base Cost by Estimate Type (AY k) Mu2e 19 D. Pushka - CD-2 Review 7/08/14
Labor Resources FTEs by Discipline Mu2e 20 D. Pushka - CD-2 Review 7/08/14
Cost Table WBS 5.2 Muon Beamline Vacuum System Costs are fully burdened in AY k Base Cost (AY k ) M&S 475.05 Muon Beamline 475.05.02 Vacuum System 475.05.02 Vacuum System Management 475.05.02.01 Production Solenoid Enclosure 475.05.02.02 Detector Solenoid Enclosure 475.05.02.03 Solenoid Cryostat Interconnect Components 475.05.02.04 External Vacuum System Components 475.05.02.05 Powering, Monitoring, Controls & Interlocks Grand Total Estimate Uncertainty (on % Contingency remaining on ETC costs) Labor Total 239 239 33 211 178 389 176 829 252 1,081 406 115 260 375 122 829 200 1,029 356 57 135 192 82 2,041 1,264 3,305 1,174 33% 45% 38% 32% 35% 43% 37% Mu2e 21 D. Pushka - CD-2 Review 7/08/14 Total Cost 272 565 1,486 497 1,385 274 4,480
Major Milestones Engineering notes for the vacuum vessels completed and submitted for review. Vacuum equipment purchase requisitions submitted for Mu2e management approval. Mu2e 22 D. Pushka - CD-2 Review 7/8/2014
Schedule CD-3a CD-2 Shielding CD-3 MB Vacuum System Fabrication and QA MB Vacuum System Design MB Collimator Fabrication and QA Muon Beamline Collimator Design MB Shielding Installation MB Collimator Installation Detector Support Fabrication and QA Detector Support and Installation System Design CD-4 MB Vacuum System Installation and Commissioning MB Shielding Fabrication and QA Muon Beamline Shielding Design Detector Hall Construction KPPs Satisfied Solenoid Infrastructure Detector Support Installation Solenoid Installation and Commissioning Detector Construction Accelerator Commissioning Accelerator andQ3 Beamline Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q4 Q1Construction Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 (off Project) Mu2e FY14 FY15 FY16 FY17 FY18 FY19 FY20 FY21
Summary Upstream Muon Beamline will need to be evacuated to a pressure of less than 10-5 torr to support efficient primary target operation Downstream Muon Beamline will need to be evacuated to a pressure of less than 10-4 torr to support detector operation Much design work remains to be performed Nearly all of the remaining design work is similar to work previous performed. Mu2e 24 D. Pushka - CD-2 Review 7/8/2014
475.05.02 Vacuum System 475.05.02 Vacuum System Management 239 239 33 33% 272 475.05.02.01 Production Solenoid Enclosure 211 178 389 176 45% 565 475.05.02.02 Detector Solenoid Enclosure 38% 829 252 1,081 406 1,486 475.05.02.03 Solenoid Cryostat Interconnect Components 115 260 375 122 32% 497 475.05.02.04 External Vacuum System Components 829 .
Work Breakdown Structure (WBS) Dictionary Stellarator Core Systems (WBS 1) WBS Element: 11 WBS Level: 3 WBS Title: In-Vessel Components Description: This WBS element consists of all the in-vessel systems required to absorb the heat and particle fluxes from the plasma and to effect divertor operation for neutral recycling and density control.
guidelines from each level of WBS but only to the work package. This check refers to the breakdown of activities that exist at each WBS level from the WBS diagram and based on the description of each activity in the WBS dictionary (SU 2012). 2. Literature Review . 2.1 Air Side Facilities in Airport Construction Works
SAP (PS) WBS 2 WBS 2.1Control Account WBS 2.2 WBS 2.1.1 WBS 2.1.2Synch Project Definition Actual Hours & Cost Actual Hours & Cost Schedules SAP Network Work Package Control Account Automated Link Synch Structure Synch Structure Hours & Progress Structure Primavera P6 Synch Progress Synch Actuals Primary Cost % / / AS h / / AF / RD
Figure 2: Product Oriented WBS Use product-oriented WBS as best practice, where WBS elements are decomposed from scope of work based on products or deliverables. Figure 2 shows example of product-oriented WBS (US GAO, 2009). As shown in Figure 2, WBS could be presented in tree structure, matrix or hierarchical structure.
managers, project team and informed parties can get when WBS is used to build BIM - along with other information. One for instance and as mentioned previously is the multidimensional schedule. What WBS offers for BIM is a standard WBS codification. BIM is out of this paper scope however continuing with WBS and specifically what called
Read Kim Heldman’s PMP Study Guide – Chapter 3, p. 98-131 “Scoping out the Scope Statement” and read p.134-146, Creating WBS – Heldman Contact your team to work on final touches to the WBS for your project. Week 2 Create Work Break Down Structure (WBS) (PMBOK p.116-118) Team Exercise – Create a WBS for your team project
flight project.3 The purpose of the WBS is to allocate the work content into manageable segments to enable the planning and control of cost, schedule, and technical content. The typical space flight system WBS is product oriented. The product-oriented WBS begins with the end product at the highest level
NORTH LANARKSHIRE COUNCIL AGmA REPORT 1 1 I I 1 1 IFROM: QR8FSocWWoRK PERlQD Ollff109 - 16mm I I SoClAtWoRK DATE : 16 SEPTEMBER1896 Ref. : EMch I I 1 1. introduction This report compares actual expenditure and income against estimates both for the year to date and the prc@cted &-turn. Explanations are provided for the major &-turn variance.
