ML21098A126

1B - Overview

ML21098A126
Person / Time
Issue date:	04/06/2021
From:	Nick Melly Office of Nuclear Regulatory Research
To:
Kenneth Hamburger
Shared Package
ML21098A124	List: ML21098A125 ML21098A126 ML21098A128 ML21098A129 ML21098A131
References
Download: ML21098A126 (6)

Text

Working Group Nicholas Melly, P.E.

Office of Nuclear Regulatory Research

NRC/EPRI Working Group

• EPRI & NRC cooperative research agreement

• Mission

- Advance state of knowledge and develop understanding of risk from HEAF

• Goals

- Parameters that influence frequency and severity

- Develop more realistic risk models

- Analyze plant impact and ensure plant safety HEAF Research Working Group Update - April 6th, 2021

NRC/EPRI Working Group Team Members

• Ken Fleischer (Fleischer Consultants)

• JS Hyslop (NRC)

• Dane Lovelace (Jensen Hughes)

• Nicholas Melly (NRC)

• Shannon Lovvern (TVA)

• Kenn Miller (NRC)

• Tom Short (EPRI)

• Gabriel Taylor (NRC)

• Marko Randelovic/Ashley Lindeman (EPRI)

• Chris LaFleur (SNL)

• Jason Floyd (Jensen Hughes)

• Kenneth Hamburger (NRC)

Project Management

• Kelli Voelsing (EPRI)

• Mark Henry Salley (NRC)

HEAF Research Working Group Update - April 6th, 2021

NRC/EPRI Working Group Method Improvements

• Updated frequency values to comport with working group definitions of HEAF events (Arc blast vs. HEAF events)

• The use of plant specific electrical design to focus HEAF scenario creation and frequency

• NRC/EPRI working group is in the process of developing CDF modeling tools along with fragility test data, OpEx and expert judgment to define target vulnerability

• Development of multiple consequence end states HEAF Research Working Group Update - April 6th, 2021

NRC Project Plan

• Project Plan

- Requested by EPRI to improve project management

- Addresses objectives, assumptions, risks, and schedule

- Developed in close coordination with NRC/EPRI WG Members

- The project plan has been recently added to the NRC HEAF website

• https://www.nrc.gov/about-nrc/regulatory/research/fire-research/heaf-research.html HEAF Research Working Group Update - April 6th, 2021

Project Schedule HEAF Research Working Group Update - April 6th, 2021 6