ML23297A044

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NRR E-mail Capture - Abilene Christian University (Acu) Molten Salt Research Reactor (Msrr) Section 9.8 Audit Question
ML23297A044
Person / Time
Site: Abilene Christian University
Issue date: 10/24/2023
From: Edward Helvenston
NRC/NRR/DANU
To: Towell R
Abilene Christian University (ACU)
References
Download: ML23297A044 (2)


Text

From:

Edward Helvenston Sent:

Tuesday, October 24, 2023 7:56 AM To:

Rusty Towell; Lester Towell; Benjamin Beasley; Tim Head; Jordan Robison; Alexander Adams; Brazos Fitch Cc:

Richard Rivera; Zackary Stone (He/Him/His); Michael Wentzel; Greg Oberson (He/Him); Mohsin Ghazali; Steve Jones; Boyce Travis

Subject:

ACU MSRR Section 9.8 Audit Question

Dear Dr. Towell,

Below is a question the NRC staff has prepared for Abilene Christian University (ACU) related to the ACU Preliminary Safety Analysis Report, primarily Section 9.8, Other Auxiliary Systems. The NRC staff would like to discuss this question within the scope of the ACU construction permit (CP) application review Audit Plan for Chapters 1, 5, 8, 9 (Except 9.2 and 9.6), 10, 11, 12, 14-18, and General Topics (see audit plan dated 3/2/2023, ML23065A052), and I am providing in advance to facilitate discussion during an audit meeting. We will add this email, with the question, to public ADAMS. If you have any questions, please let Richard, Mohsin, or I know.

Thank you, Ed Helvenston, U.S. NRC Non-Power Production and Utilization Facility Licensing Branch (UNPL)

Division of Advanced Reactors and Non-Power Production and Utilization Facilities (DANU)

Office of Nuclear Reactor Regulation (NRR)

O-6B22 (301) 415-4067 Item #

Question 9.8-1 Figure 3.1-2, Cross Section View of Science and Engineering Research Center, of the MSRR PSAR, Rev. 0, depicts a crane that can operate over the research bay and systems pit. Design and operation of the crane does not appear to be addressed in the PSAR, although the NRC staff notes that use of the crane with attached heavy loads could pose a potential challenge to the safety of the MSRR. Please describe how crane operation and any credible malfunction would be precluded from:

  • creating conditions that would cause an unanalyzed reactor accident;
  • causing an uncontrolled release of radioactive material beyond those analyzed in Chapter 13 of the MSRR PSAR; or

For any design features that provide this protection, please describe the design bases and the applicable design criteria.

Hearing Identifier:

NRR_DRMA Email Number:

2284 Mail Envelope Properties (BY5PR09MB5956FE27227660EDF32605DDE0DFA)

Subject:

ACU MSRR Section 9.8 Audit Question Sent Date:

10/24/2023 7:56:11 AM Received Date:

10/24/2023 7:56:00 AM From:

Edward Helvenston Created By:

Edward.Helvenston@nrc.gov Recipients:

"Richard Rivera" <richard.rivera@nrc.gov>

Tracking Status: None "Zackary Stone (He/Him/His)" <Zackary.Stone@nrc.gov>

Tracking Status: None "Michael Wentzel" <Michael.Wentzel@nrc.gov>

Tracking Status: None "Greg Oberson (He/Him)" <Greg.Oberson@nrc.gov>

Tracking Status: None "Mohsin Ghazali" <Mohsin.Ghazali@nrc.gov>

Tracking Status: None "Steve Jones" <Steve.Jones@nrc.gov>

Tracking Status: None "Boyce Travis" <Boyce.Travis@nrc.gov>

Tracking Status: None "Rusty Towell" <rxt01a@acu.edu>

Tracking Status: None "Lester Towell" <ldt20a@acu.edu>

Tracking Status: None "Benjamin Beasley" <bgb23b@acu.edu>

Tracking Status: None "Tim Head" <tlh07b@acu.edu>

Tracking Status: None "Jordan Robison" <jcr20b@acu.edu>

Tracking Status: None "Alexander Adams" <axa20j@acu.edu>

Tracking Status: None "Brazos Fitch" <bjf15a@acu.edu>

Tracking Status: None Post Office:

BY5PR09MB5956.namprd09.prod.outlook.com Files Size Date & Time MESSAGE 1838 10/24/2023 7:56:00 AM Options Priority:

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