ML19084A139
| ML19084A139 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 03/25/2019 |
| From: | NRC |
| To: | NRC/NRO/DLSE/LB4 |
| References | |
| Download: ML19084A139 (17) | |
Text
Vogtle PEmails From: Habib, Donald Sent: Monday, March 25, 2019 12:10 PM To: Vogtle PEmails
Subject:
FW: FW: UIN ICN comment status sheet ITAAC Index 145 (March 21 Public Meeting)
Attachments: ITAAC Index 145.pptx From: Petrak, Tom G. <TGPETRAK@southernco.com>
Sent: Monday, March 25, 2019 11:23 AM To: Hoellman, Jordan <Jordan.Hoellman2@nrc.gov>
Cc: Welch, Christopher <Christopher.Welch@nrc.gov>; Hall, Victor <Victor.Hall@nrc.gov>; Habib, Donald
<Donald.Habib@nrc.gov>; Agee, Stephanie Y. <SYAGEE@southernco.com>
Subject:
[External_Sender] FW: UIN ICN comment status sheet ITAAC Index 145 (March 21 Public Meeting)
- Jordan, Attached is material to address the question that was raised about ITAAC Index 145 for this Thursdays NRC public call. Please call if you have any questions.
Thomas G. Petrak Vogtle 3&4 ITAAC Manager Southern Nuclear Operating Company 7835 River Road, Bldg. 302 - Waynesboro, GA 30830 (706) 848-1575(o)
(706) 833-7581 (c)
From: Habib, Donald <Donald.Habib@nrc.gov>
Sent: Monday, March 25, 2019 9:26 AM To: Petrak, Tom G. <TGPETRAK@southernco.com>
Cc: Vogtle PEmails <Vogtle.PEmails@nrc.gov>; Welch, Christopher <Christopher.Welch@nrc.gov>; Hall, Victor
<Victor.Hall@nrc.gov>; Agee, Stephanie Y. <SYAGEE@southernco.com>
Subject:
RE: UIN ICN comment status sheet ITAAC Index 145 (March 21 Public Meeting)
EXTERNAL MAIL: Caution Opening Links or Files Tom -
When SNC transmits the document (diagram) to NRC that was discussed at the 3/21 public meeting, please make sure that I am on the cc. This is for the discussion public meeting discussion on 3/28.
1
Thank you, Don Habib U.S. Nuclear Regulatory Commission Office of New Reactors Project Manager NRO/DLSE, Licensing Branch 2 O-8D13 301-415-1035 From: Habib, Donald Sent: Monday, March 18, 2019 4:37 PM To: 'Agee, Stephanie Y.' <SYAGEE@southernco.com>; 'tgpetrak@southernco.com' <tgpetrak@southernco.com>
Cc: Vogtle PEmails <Vogtle.PEmails@nrc.gov>; Welch, Christopher <Christopher.Welch@nrc.gov>
Subject:
UIN ICN comment status sheet ITAAC Index 145 (March 21 Public Meeting)
Tom - Attached is the UIN/ICN Comment I indicated to you on the phone.
Stephanie - The staff is interested in discussing this item on the public teleconference this week.
Thanks Don Habib U.S. Nuclear Regulatory Commission Office of New Reactors Project Manager NRO/DLSE, Licensing Branch 2 O-8D13 301-415-1035 2
Hearing Identifier: Vogtle_COL_Docs_Public Email Number: 434 Mail Envelope Properties (SN4PR0901MB217540C3CF1D33D2284A86D4975E0)
Subject:
FW: FW: UIN ICN comment status sheet ITAAC Index 145 (March 21 Public Meeting)
Sent Date: 3/25/2019 12:09:52 PM Received Date: 3/25/2019 12:09:57 PM From: Habib, Donald Created By: Donald.Habib@nrc.gov Recipients:
"Vogtle PEmails" <Vogtle.PEmails@nrc.gov>
Tracking Status: None Post Office: SN4PR0901MB2175.namprd09.prod.outlook.com Files Size Date & Time MESSAGE 2747 3/25/2019 12:09:57 PM image001.png 3946 ITAAC Index 145.pptx 837302 Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date:
Recipients Received:
Passive Containment Cooling Water Flow Tests ITAAC Index 145 Thomas G. Petrak ITAAC Manager 03/28/19
Makeup from PCS to SFP ITAAC Index 145 Design Commitment Inspections, Test, Analyses Acceptance Criteria i) With the PCCWST water level at 27.4 Flow path #1 ft + 0.2, - 0.0 ft above the bottom of the tank, the flow path from the 7.f) The PCS provides a flow path for i) Testing will be performed to PCCWST to the spent fuel pool long-term water makeup from the measure the delivery rate from the delivers greater than or equal to 118 PCCWST to the spent fuel pool. PCCWST to the spent fuel pool. gpm.
With PCCAWST aligned to the suction Flow path #2 of the recirculation pumps, each pump Testing will be performed to measure delivers greater than or equal to 100 8.b) The PCS delivers water from the the delivery rate from the PCCAWST gpm to the PCCWST and 35 gpm to the PCCAWST to the PCCWST and spent to the PCCWST and spent fuel pool spent fuel pool simultaneously when fuel pool simultaneously. simultaneously. each pump is tested separately.
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Test Strategy
- The Spent Fuel Pool (SFP) will not be available for testing at the time the Passive Containment Cooling Water Storage Tank (PCCWST) is undergoing preoperational testing.
- Each of the PCS flow paths (flow path #1 and flow path #2) will be tested in two segments each. Each segment shares a common point.
- Each test will establish the required acceptance criteria flowrate and the pressure is measured at the common point.
- With measured flowrates established for each segment, a comparison of the measured pressures at common point will determine if the entire flow path meets the ITAAC acceptance criteria. 3
Flow path #1 Figure 1 4
Flow path #1 - Segment #1
- A temporary pump skid is connected to the system upstream of the common point. (See Figure 2)
- A flowrate of 118gpm is established to the SFP. A throttle valve on the temporary pump skid is used to establish the acceptance criteria flowrate
- The pressure is measured at the common point.
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Flow path #1 - Segment 1 Figure 2 6
Flow path #1 - Segment #2
- A temporary flow path is established downstream of the common point, creating a flow path away from the SFP (See Figure 3)
- Flow is initiated from the PCCWST past the common point to the temporary flow path. A throttle valve in the temporary flow path is used to establish a flowrate of 118gpm
- The ITAAC acceptance criteria for flow path #1 is met when the pressure measure at the common point for segment 2 is the measured pressure at the common point for segment 1.
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Flow path #1 - Segment 2 Figure 3 8
Flow path #2 Figure 4 9
Flow path #2 - Segment #1
- A temporary pump skid is connected to the system upstream of the common point. (See Figure 5)
- A flowrate of 35gpm is established to the SFP. A throttle valve on the temporary pump skid is used to establish the acceptance criteria flowrate
- The pressure is measured at the common point.
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Flow path #2 - Segment #1 Figure 5 11
Flow path #2 - Segment #2
- A temporary flow path is established downstream of the common point, creating a flow path away from the SFP (See Figure 6)
- Flow is initiated from the PCCAWST past the common point to the temporary flow path and to the PCCWST. A throttle valve in the temporary flow path is used to establish a flowrate of 35gpm to the temporary flow path and the flow to the PCCWST is measured.
- The ITAAC acceptance criteria for flow path #2 is met when the pressure measure at the common point for segment 2 is the measured pressure at the common point for segment 1 and the flowrate to the PCCWST is 100gpm.
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Flow path #2 - Segment #2 Figure 6 13