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Job 1260 Neutral Beam Transition Duct (NBTD)

Job 1260 Neutral Beam Transition Duct (NBTD). P. L. Goranson. Functional requirements. NBTD provides interface for: - Man access into Vacuum Vessel (opening 13.5” wide x 34” tall) - Mounting vacuum pumping system (13.5” id Port) - Mounting Neutral Beam units - Mounting diagnostics

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Job 1260 Neutral Beam Transition Duct (NBTD)

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  1. Job 1260 Neutral Beam Transition Duct (NBTD) P. L. Goranson SC Project Review of NCSX, April 8-10, 2008

  2. Functional requirements • NBTD provides interface for: • - Man access into Vacuum Vessel (opening 13.5” wide x 34” tall) • - Mounting vacuum pumping system (13.5” id Port) • - Mounting Neutral Beam units • - Mounting diagnostics • - Mounting Lateral Supports and positioning • VV toroidally • In addition, the NBTD must penetrate and • seal to the Cryostat. • NBTD operates at 350C at its mounting flange at bakeout during bakeout; most of construction must be Inconel. SC Project Review of NCSX, April 8-10, 2008 P. L. Goranson - page 2

  3. Design Status • Models were completed (2003) and were reviewed several years ago • reaffirm design, hold peer review and work toward SRD • PDR required • Baseline was changed for a time to incorporate simplified ducts (Man Access Ports) which did not mount NB’s. • Lateral support drawings were completed and incorporated on Man Access Port. SC Project Review of NCSX, April 8-10, 2008 P. L. Goranson - page 3

  4. NBTD showing Lateral Supports Lateral Support (top and bottom) VV Interface Man Access NB Port Vacuum Pumping Port SC Project Review of NCSX, April 8-10, 2008 P. L. Goranson - page 4

  5. NBTD Preliminary Drawings TOP VIEW SC Project Review of NCSX, April 8-10, 2008 P. L. Goranson - page 5

  6. Labor Cost SC Project Review of NCSX, April 8-10, 2008 P. L. Goranson - page 6

  7. Costs reflects recent significant increase in Inconel price. Lateral supports added. This element consists of the port duct, seals, and all cover flanges weight of shell assembly, with ports 1400 lbs $/lb for fabrication 51 $/lb Includes recent vendor Inconel quotes of $43/lb. $71,400 subtotal, fab cost shell Ports 8" o.d. flange, 6" tube 225 $/ea MDC catalog 10 8" o.d. rotatable cover flange 125 $/ea MDC catalog 10 no. of 8" ports 7 ea cost for 8" ports $2,450 NCSX/MDL experience 14.5" x 16.5" flange with tube(ss) 1500 $/ea NCSX/MDL experience blank 14.5" x 16.5" flanges(ss) 1000 $/ea no. of 14.5" x 16.5" ports 2 ea cost for 14.5" x 16.5" ports $5,000 16.5" o.d. flange, 14" tube 1000 $/ea MDC catalog 10 16.5" o.d. rotatable cover flange 710 $/ea MDC catalog 10 no. of 16.5" ports 2 ea cost for 16.5" ports $3,420 NCSX/MDL experience large square flange cover, ss $4,000 o-ring seals for diamond flange and square flange $2,530 based on actual procurement $17,400 subtotal, ports Fabricate and install lateral support $8,000 $/ea Ref drawing SE124-073. Estimate based on MDL fabrication of similar parts for QPS. number of supports 2 ea $16,000 subtotal for support $104,800 Total, each nbi port duct extension no. of nbi duct extensions 3 $314,400 total, 3 extensions None of the above includes an interface to the cryostat. M&S Cost SC Project Review of NCSX, April 8-10, 2008 P. L. Goranson - page 7

  8. Schedule & Staffing Schedule Note: Schedule will be revised to show start in early (Feb or march) 2009. Schedule will maintain relative time lines. Staffing P. L. Goranson – 80% during Title I & II design. Gary Lovett – 100% during Title I & II. SC Project Review of NCSX, April 8-10, 2008 P. L. Goranson - page 8

  9. Schedule and Cost Risk Uncertainty of the Estimate Uncertainty Range (%) High Medium Low Design Maturity X -10%/+15% Design Complexity X Other Comments: Mitigation SC Project Review of NCSX, April 8-10, 2008 P. L. Goranson - page 9

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