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Title: METAL-WATER REACTIONS. IV. HEAT TRANSFER CONDITIONS DURING SEVERE NUCLEAR EXCURSIONS IN WATER COOLED REACTORS

Abstract

Analytical results and test reactor experiments have indicated that the initial power pulse of a nuclear excursion severe enough to produce fuel melting and possible metalwater reaction can be completed in less than 250 milliseconds. Analyzing heat-transfer under such rapidly changing conditions is a difficult problem. This report presents a review of pertinent transient heat-transfer data to form a basis for indicating the influence of heat-transfer on the course of a severe nuclear excursion. A previously developed method for analyzing the heat- transfer phenomena during an excursion in a water cooled and moderated reactor is reviewed with this background to evaluate possible improvements in the models. It is concluded that at the present state of development of the method of analysis as it is applied to the study of metal-water reactions, a more refined heat-transfer model and more precise input data are not warranted. In the future, as the study progresses, requirements on the heat-transfer model are expected to become more stringent. To obtain a more sophisticated and refined analysis, particularly during the nucleateboiling regime, additional analytical and experimental work will be required. Indication of the available information in the literature and the direction future analytical and experimental effort mightmore » proceed are presented. (auth)« less

Authors:
Publication Date:
Research Org.:
General Electric Co. Atomic Power Equipment Dept., San Jose, Calif.
Sponsoring Org.:
US Atomic Energy Commission (AEC)
OSTI Identifier:
4177371
Report Number(s):
GEAP-3204
NSA Number:
NSA-14-011257
DOE Contract Number:  
AT(04-3)-189
Resource Type:
Technical Report
Resource Relation:
Other Information: Project No. 1. Orig. Receipt Date: 31-DEC-60
Country of Publication:
United States
Language:
English
Subject:
REACTOR TECHNOLOGY; CHEMICAL REACTIONS; EXCURSIONS; FUELS; HEAT TRANSFER; MELTING; METALS; NUCLEATE BOILING; REACTOR SAFETY; REACTORS; TRANSIENTS; WATER; WATER COOLANT; WATER MODERATOR

Citation Formats

Hikido, K. METAL-WATER REACTIONS. IV. HEAT TRANSFER CONDITIONS DURING SEVERE NUCLEAR EXCURSIONS IN WATER COOLED REACTORS. United States: N. p., 1959. Web. doi:10.2172/4177371.
Hikido, K. METAL-WATER REACTIONS. IV. HEAT TRANSFER CONDITIONS DURING SEVERE NUCLEAR EXCURSIONS IN WATER COOLED REACTORS. United States. doi:10.2172/4177371.
Hikido, K. Tue . "METAL-WATER REACTIONS. IV. HEAT TRANSFER CONDITIONS DURING SEVERE NUCLEAR EXCURSIONS IN WATER COOLED REACTORS". United States. doi:10.2172/4177371. https://www.osti.gov/servlets/purl/4177371.
@article{osti_4177371,
title = {METAL-WATER REACTIONS. IV. HEAT TRANSFER CONDITIONS DURING SEVERE NUCLEAR EXCURSIONS IN WATER COOLED REACTORS},
author = {Hikido, K.},
abstractNote = {Analytical results and test reactor experiments have indicated that the initial power pulse of a nuclear excursion severe enough to produce fuel melting and possible metalwater reaction can be completed in less than 250 milliseconds. Analyzing heat-transfer under such rapidly changing conditions is a difficult problem. This report presents a review of pertinent transient heat-transfer data to form a basis for indicating the influence of heat-transfer on the course of a severe nuclear excursion. A previously developed method for analyzing the heat- transfer phenomena during an excursion in a water cooled and moderated reactor is reviewed with this background to evaluate possible improvements in the models. It is concluded that at the present state of development of the method of analysis as it is applied to the study of metal-water reactions, a more refined heat-transfer model and more precise input data are not warranted. In the future, as the study progresses, requirements on the heat-transfer model are expected to become more stringent. To obtain a more sophisticated and refined analysis, particularly during the nucleateboiling regime, additional analytical and experimental work will be required. Indication of the available information in the literature and the direction future analytical and experimental effort might proceed are presented. (auth)},
doi = {10.2172/4177371},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1959},
month = {9}
}