ML080810339
| ML080810339 | |
| Person / Time | |
|---|---|
| Site: | Susquehanna  |
| Issue date: | 03/18/2008 |
| From: | GE Healthcare, Susquehanna |
| To: | Office of Nuclear Reactor Regulation |
| vaidya B, NRR/DLPM, 415-3308 | |
| References | |
| TAC MD8099 | |
| Download: ML080810339 (70) | |
Text
1 Susquehanna Steam Electric Station Extended Power Uprate Steam Dryer Update
2 Meeting Purpose
- Provide the current status of the Steam Dryer Project and review steam dryer design improvements.
- Discuss the schedule for Unit 1 start-up testing.
- Discuss the implementation of Unit 1 License Conditions:
- 2.C.(36)(a)1
- 2.C.(36)(a)3
- 2.C.(36)(a)4
- 2.C.(36)(a)5
- 2.C.(36)(b)1
- 2.C.(36)(b)2
- 2.C.(36)(b)4
- 2.C.(36)(b)7 Provide information on the Unit 1 Steam Dryer Installation Interference
3 Todays Discussion
- Steam Dryer Project Status
- Unit 1 Start-up Schedule
- Main Steam Line Strain Gages
- Proposed Start-Up Data Package Format
- Review of New Steam Dryer Design
- Hammer Test Status
- Unit 1 Steam Dryer Instrumentation
- Unit 1 Steam Dryer Installation Interference
- Post Start-Up Dryer Analysis
4 Steam Dryer Project Status
5 Unit 1 Steam Dryer Status Completed Activities
- All assembly complete with exception of lower skirt ring tie bar modification and seismic brackets.
- Hammer test.
- Dryer mounted instruments installed.
Remaining Work
- Complete lower skirt ring tie bar modification.
- Dryer leveling.
- EDM reactor vessel lugs.
- Test fit dryer.
- Machine and install seismic brackets.
- Install steam dryer.
- Route instrument leads through vessel head instrument nozzle.
6 Unit 2 Steam Dryer Status
- Components under construction at GE Custom Fabrication
- Shop fabrication to be complete in late June of 2008.
- Ship to Susquehanna by mid July of 2008.
7 Unit 1 Start-Up Schedule
8 Unit 1 Start-up Schedule Activity Date Enter Mode 2 April 12 Breaker Closed April 15 MSIV Closure Test (72.2% Power)
April 18 MSIV Closure Test (76.9% Power)
April 19 MELLLA Testing April 20 thru April 27 3489 MWth Plateau Review April 28 Start Ramp to 3611 MWth Plateau April 29 3611 MWth Plateau Review May 1 Start Ramp to 3733 MWth May 6 Condensate Pump Trip May12 Plateau Review May 13
9 Main Steam Line Strain Gages
10 Main Steam Line Instrumentation
- 32 strain gages installed.
- Two locations per steam line.
- 4 strain gages per location.
- Data usage:
- Qualitative evaluation of acoustic spectrum.
- Evaluation of proposed limit curves.
- Collect data for ACM benchmarking.
- Collect data for SUPF validation.
11 Upstream Strain Gage Location Downstream Strain Gage Location Steam Dome Steam Flow Direction L4 L1 L2 L3 Dead-Headed Leg Length MSL A (ft)
MSL B (ft)
MSL C (ft)
MSL D (ft)
Distance from steam dome to upstream SG location (L1 )
22.8 22.8 22.8 22.8 Distance from steam dome to downstream SG location (L2 )
52.7 49.6 48.3 52.6 Distance from steam dome to dead-headed leg location (L3 )
56.7 NA NA 56.7 Length of dead-headed leg (L4 )
24.1 NA NA 24.2 Main Steam Line Strain Gauge Locations
12 Proposed Start-Up Data Package Format License Conditions 2.C.(36)(a)1, 2.C.(36)(a)3 and 2.C.(36)(a)5
13 Maximum strain and acceleration amplitudes, as a percent of the acceptable limits Sensor ID
% of Level 1 Criteria
% of Level 2 Criteria A4 S1 S2 S3 S4 S5 S6 S7 S8 S9
14 Typical Power Ascension Trend Plots for Strain Gages (S1 to S9)
With Level-1 and Level-2 Acceptance limits 0
10 20 30 40 50 60 70 80 90 100 0
10 20 30 40 50 60 70 80 90 100
% Power Microstrain Level 1 Level 2
15 Typical Power Ascension Trend Plots for Accelerometer A4 With Level-1 and Level-2 Acceptance limits 0
5 10 15 20 25 30 35 0
10 20 30 40 50 60 70 80 90 100
% Power G's Level 1 Level 2
16 Typical Frequency Spectrum Monitoring Curves for Strain Gages (S1 to S9), Accelerometer (A4)
17 Steam Dryer Data Log Sheets Date/Time 2/6/2008 7:00 Computer ID Value Units Thermal Power (Instantaneous) u01.nba01 3484.78 MWth Thermal Power (15 min Ave.)
u01.nba101 3484.43 MWth Electrical Power u01.tra178 1199.08 Mwe Total Core Flow u01.tra026 100.07 M lbm/hr Recirc Loop Flow A u01.tra028 50.21 M lbm/hr Recirc Loop Flow B u01.tra029 49.49 M lbm/hr Core Plate D/P u01.tra027 14.71 PSI Steam Flow Line A u01.tra153 3.66 M lbm/hr Steam Flow Line B u01.tra154 3.50 M lbm/hr Steam Flow Line C u01.tra155 3.83 M lbm/hr Steam Flow Line D u01.tra156 3.67 M lbm/hr Total Steam Flow u01.tra097 14.52 M lbm/hr
18 Feedwater Flow u01.tra098 14.51 M lbm/hr Feedwater Temperature Line A u01.tra102 391.48
°F Feedwater Temperature Line B u01.tra103 388.52
°F Feedwater Temperature Line C u01.tra104 391.10
°F Rx Dome Pressure Narrow Range u01.tra208 1037.96 PSIG Rx Dome Pressure Wide Range u01.tra209 1039.19 PSIG Steam Dome Temperature u01.nfa05 551.11
°F Recirculation Pump A Speed vm.1p401a/1a_rrp_tac 1421.00 RPM Recirculation Pump B Speed vm.1p401b/1b_rrp_tac 1424.00 RPM Recirculation Pump A Power u01.nrj51 3.63 MWe Recirculation Pump B Power u01.nrj52 3.64 MWe CRD Cooling Header Flow u01.nef03 64.46 GPM CRD System Flow u01.nef01 63.54 GPM CRD System Temperature u01.ndt05 125.42
°F Bottom Head Drain Temp u01.tra206 530.75
°F
19 Reactor Water Level Narrow Range u01.tra142 33.64 Inches H2O Reactor Water Level Narrow Range u01.nfl02 33.98 Inches H2O Reactor Water Level Narrow Range u01.nfl03 33.74 Inches H2O Reactor Water Level Wide Range u01.tra143 33.72 Inches H2O Recirculation Pump A Vane Passing Freq.
n/a 118.42 Hz Recirculation Pump B Vane Passing Freq.
n/a 118.67 Hz Recirculation Pump A Motor Frequency n/a 47.85 Hz Recirculation Pump A Motor Frequency n/a 47.95 Hz
20 Review of New Steam Dryer Design GEH Proprietary Information
21 Replacement Steam Dryer Analysis GEH Proprietary Information
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22 Fabrication Improvements GEH Proprietary Information
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23 Hood Joint Tee GEH Proprietary Information
24 Hood End Panel GEH Proprietary Information
25 Drain Trough Side Plates GEH Proprietary Information
26 Hood Support and Bank Divider Plate Assembly GEH Proprietary Information
27 New Dryer Trans Brace GEH Proprietary Information
28 Bank Cap and Tie Bar GEH Proprietary Information
29 Dryer Constructed in Halves GEH Proprietary Information
30 Support Ring Splice Bar and Drain Channel Tee GEH Proprietary Information
31 Final Fabrication on Refueling Floor GEH Proprietary Information
32 Completed Steam Dryer GEH Proprietary Information
33 Hammer Test Results GEH Proprietary Information
34 Hammer Test Status GEH Proprietary Information
35 Preliminary Test Summary GEH Proprietary Information
36 Tank and Test Frame GEH Proprietary Information
37 Tripod Support GEH Proprietary Information
38 Photograph of Dryer, 90° Side GEH Proprietary Information
39 Unit 1 Steam Dryer Instrumentation GEH Proprietary Information
40 Steam Dryer Instrumentation GEH Proprietary Information
41 Steam Dryer Sensor Summary GEH Proprietary Information
42 Elevation Ninety Degree View GEH Proprietary Information
43 Elevation Zero Degree View GEH Proprietary Information
44 Elevation 270 Degree View GEH Proprietary Information
45 Dryer Top View GEH Proprietary Information
46 Cover Plate Instrumentation GEH Proprietary Information
47 Hood Pressure Sensors and Strain Gages GEH Proprietary Information
48 Instrument Mast GEH Proprietary Information
49 Instrument Mast GEH Proprietary Information
50 Unit 1 Steam Dryer Installation Interference GEH Proprietary Information
51 Issue GEH Proprietary Information
52 Interference Pictures 0-deg Guide Rod 180-deg Guide Rod GEH Proprietary Information
53 Probable Interference Contributing Factors GEH Proprietary Information
54 Lower Support Ring Deflection GEH Proprietary Information
55 Modification GEH Proprietary Information
56 Modification GEH Proprietary Information
57 New Splice Bar GEH Proprietary Information
58 Original Splice Bar GEH Proprietary Information
59 New Splice Bar Installation GEH Proprietary Information
60 Additional Engineering Actions GEH Proprietary Information
61 Post Start-Up Dryer Analysis GEH Proprietary Information License Conditions 2.C.(36)(a)4, 2.C.(36)(a)5, 2.C.(36)(b)1, 2.C.(36)(b)2, 2.C.(36)(b)4, and 2.C.(36)(b)7
62 Dryer Acceptance Limits GEH Proprietary Information
63 Dryer Acceptance Limits, contd GEH Proprietary Information
64 Start-Up Analysis Scenarios GEH Proprietary Information
65 Loss of Instruments: Instruments Placement Selected to Provide Redundancy GEH Proprietary Information
66 Loss of Instruments: Instruments Placement Selected to Provide Redundancy GEH Proprietary Information
67 Loss of Instruments GEH Proprietary Information
68 Frequency Response Monitoring Curves GEH Proprietary Information
69 Dryer Acceptance Limits are Challenged or Frequency Response Significantly Different GEH Proprietary Information
70 Post Start-up Steam Dryer Margin Analysis GEH Proprietary Information