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Title: Lessons learned from hydrogen generation and burning during the TMI-2 event

Abstract

This document summarizes what has been learned from generation of hydrogen in the reactor core and the hydrogen burn that occurred in the containment building of the Three Mile Island Unit No. 2 (TMI-2) nuclear power plant on March 28, 1979. During the TMI-2 loss-of-coolant accident (LOCA), a large quantity of hydrogen was generated by a zirconium-water reaction. The hydrogen burn that occurred 9 h and 50 min after the initiation of the TMI-2 accident went essentially unnoticed for the first few days. Even though the burn increased the containment gas temperature and pressure to 1200/sup 0/F (650/sup 0/C) and 29 lb/in/sup 2/ (200 kPa) gage, there was no serious threat to the containment building. The processes, rates, and quantities of hydrogen gas generated and removed during and following the LOCA are described in this report. In addition, the methods which were used to define the conditions that existed in the containment building before, during, and after the hydrogen burn are described. The results of data evaluations and engineering calculations are presented to show the pressure and temperature histories of the atmosphere in various containment segments during and after the burn. 51 refs.

Authors:
;
Publication Date:
Research Org.:
Rockwell International Corp., Richland, WA (USA). Rockwell Hanford Operations
OSTI Identifier:
6496769
Report Number(s):
RHO-RE-EV-95-P
ON: DE87009438
DOE Contract Number:  
AC06-77RL01030
Resource Type:
Technical Report
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; 21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; THREE MILE ISLAND-2 REACTOR; CONTAINMENT SYSTEMS; FUEL-COOLANT INTERACTIONS; LOSS OF COOLANT; FIRES; HYDROGEN; PRESSURE MEASUREMENT; PRIMARY COOLANT CIRCUITS; REACTOR INSTRUMENTATION; TEMPERATURE MEASUREMENT; ACCIDENTS; CONTAINMENT; COOLING SYSTEMS; ELEMENTS; ENERGY SYSTEMS; ENGINEERED SAFETY SYSTEMS; ENRICHED URANIUM REACTORS; NONMETALS; POWER REACTORS; PWR TYPE REACTORS; REACTOR ACCIDENTS; REACTOR COMPONENTS; REACTOR COOLING SYSTEMS; REACTORS; THERMAL REACTORS; WATER COOLED REACTORS; WATER MODERATED REACTORS; 220900* - Nuclear Reactor Technology- Reactor Safety; 210200 - Power Reactors, Nonbreeding, Light-Water Moderated, Nonboiling Water Cooled

Citation Formats

Henrie, J.O., and Postma, A.K. Lessons learned from hydrogen generation and burning during the TMI-2 event. United States: N. p., 1987. Web.
Henrie, J.O., & Postma, A.K. Lessons learned from hydrogen generation and burning during the TMI-2 event. United States.
Henrie, J.O., and Postma, A.K. Sun . "Lessons learned from hydrogen generation and burning during the TMI-2 event". United States.
@article{osti_6496769,
title = {Lessons learned from hydrogen generation and burning during the TMI-2 event},
author = {Henrie, J.O. and Postma, A.K.},
abstractNote = {This document summarizes what has been learned from generation of hydrogen in the reactor core and the hydrogen burn that occurred in the containment building of the Three Mile Island Unit No. 2 (TMI-2) nuclear power plant on March 28, 1979. During the TMI-2 loss-of-coolant accident (LOCA), a large quantity of hydrogen was generated by a zirconium-water reaction. The hydrogen burn that occurred 9 h and 50 min after the initiation of the TMI-2 accident went essentially unnoticed for the first few days. Even though the burn increased the containment gas temperature and pressure to 1200/sup 0/F (650/sup 0/C) and 29 lb/in/sup 2/ (200 kPa) gage, there was no serious threat to the containment building. The processes, rates, and quantities of hydrogen gas generated and removed during and following the LOCA are described in this report. In addition, the methods which were used to define the conditions that existed in the containment building before, during, and after the hydrogen burn are described. The results of data evaluations and engineering calculations are presented to show the pressure and temperature histories of the atmosphere in various containment segments during and after the burn. 51 refs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1987},
month = {3}
}

Technical Report:
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