ML14176A437
| ML14176A437 | |
| Person / Time | |
|---|---|
| Site: | Robinson  |
| Issue date: | 03/31/1989 |
| From: | Novak T NRC Office for Analysis & Evaluation of Operational Data (AEOD) |
| To: | Rossi C Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML14176A438 | List: |
| References | |
| TASK-106, TASK-OR AEOD-E902, NUDOCS 8904100084 | |
| Download: ML14176A437 (2) | |
Text
MAR 3 1 1989 MEMORANDUM FOR: Charles E. Rossi, Director AEOD/E902 Division of Operational Events Assessment Office of Nuclear Reactor Regulation R. Wayne Houston, Director Division of Safety Issue Resolution Office of Nuclear Regulatory Research FROM:
Thomas M. Novak, Director Division of Safety Programs Office for Analysis and Evaluation of Operational Data
SUBJECT:
FIRES AND EXPLOSIVE MIXTURES RESULTED FROM INTRODUCTION OF HYDROGEN INTO PLANT AIR SYSTEMS.
Enclosed is an Engineering Evaluation report on a recent event at the H. B. Robinson 2 plant. Inadvertent introduction of hydrogen into plant air systems resulted in two fires in the turbine building, and the presence of explosive mixtures within the reactor auxiliary building.
The Engineering Evaluation also presents information about combustible/
explosive gas hazards which existed at other plants.
AEOD suggests that these events, and AEOD's previous case study recommendations (AEOD/C501 "Safety Implications Associated with In-Plant Pressurized Gas Storage and Distribution Systems in Nuclear Power Plants," NUREG/CR-3551) be considered by the Office of Nuclear Regulatory Research in addressing the.use of hydrogen gas in nuclear power plants as part of Generic Issue 106, "Piping and Use of Highly Combustible Gases in Vital Areas."
Additionally, AEOD suggests that an Information Notice be issued by the Office of Nuclear Regulation Regulation to inform licensees of the recent hydrogen gas intrusion event which occurred at the H. B. Robinson 2 plant.
For further information regarding this study, please contact Dr. Hal Ornstein of my staff at 492-4439.
Thomas M. Novak, Director Division of Safety Programs Office for Analysis and Evaluation of Operational Data
Enclosure:
As stated Distribution:
Central Fili JHeltemes PLam WLanning ROAB R/F TNovak HOrnstein MTaylor DSP R/F VBenaroya MWilliams CGraves EJordan JRosenthal KBlack PDR
- DSP:AEOD
-ROAB:
- AEOD---
DSP:AEOD DSP:AEOD HOrnstein:md PLam ehal VBenaroya Novak 3/.2/89 3/2 /
3O89 3/,-/89 3/ o/g9 8904100084 890331 CF ADOCK 05C00261
1AR 3 1 1989 MEMORANDUM FOR:
Charles E. Rossi, Director AEOD/E902 Division of Operational Events Assessment Office of Nuclear Reactor Regulation R. Wayne Houston, Director Division of Safety Issue Resolution Office of Nuclear Regulatory Research FROM:
Thomas M. Novak, Director Division of Safety Programs Office for Analysis and Evaluation of Operational Data
SUBJECT:
FIRES AND EXPLOSIVE MIXTURES RESULTED FROM INTRODUCTION OF HYDROGEN INTO PLANT AIR SYSTEMS.
Enclosed is an Engineering Evaluation report on a recent event at the H. B. Robinson 2 plant. Inadvertent introduction of hydrogen into plant air systems resulted in two fires in the turbine building, and the presence of explosive mixtures within the reactor auxiliary building.
The Engineering Evaluation also presents information about combustible/
explosive gas hazards which existed at other plants.
AEOD suggests that these events, and AEOD's previous case study recommendations (AEOD/C501 "Safety Implications Associated with In-Plant Pressurized Gas Storage and Distribution Systems in Nuclear Power Plants," NUREG/CR-3551) be considered by the Office of Nuclear Regulatory Research in addressing the use of hydrogen gas in nuclear power plants as part of Generic Issue 106, "Piping and Use of Highly Combustible Gases in Vital Areas."
Additionally, AEOD suggests that an Information Notice be issued by the Office of Nuclear Regulation Regulation to inform licensees of the recent hydrogen gas intrusion event which occurred at the H. B. Robinson 2 plant.
For further information regarding this study, please contact Dr. Hal Ornstein of my staff at 492-4439.
Thomas M. Novak, Director Division of Safety Programs Office for Analysis and Evaluation of Operational Data
Enclosure:
As stated Distribution:
Central File JHeltemes PLam WLanning ROAB R/F TNovak HOrnstein MTaylor DSP R/F VBenaroya MWilliams CGraves EJordan JRosenthal KBlack PDR
\\j B:DSP:AEOD ROAB:DS' E RO PO:AEOD DSP:AEOD DSP:AEOD HOrnstein:md PLam 9(
enthal VBenaroya VNovak 3/z/89 3/2 /
3 $089 3/3,7/89 3///89 (el"C~c C 0 oy )
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