ML20002D567

Errata Sheets of Matl to Be Added to Methods for Analysis of BWRs Transient Thermal Margin Analysis Code (MAYUO4-YAEC), Submitted 801231

ML20002D567
Person / Time
Site:	Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date:	01/14/1981
From:	Burns K, Slifer B, Turnage J YANKEE ATOMIC ELECTRIC CO.
To:
Shared Package
ML20002D566	List: ML20002D565 ML20002D567
References
YAEC-1235-ERR, NUDOCS 8101210367
Download: ML20002D567 (2)

Text

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ERRATA I

Report: YAEC-1235, " Methods for the Analysis of Boiling Water Reactors, Transient Thermal Margin Analysis Code (MAYUO4-YAEC)", K. J. Burns, December 29, 1980.

Change

Description:

1. Insert page 17 (enclosed) .

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I l 81012103b9  ;

1 (2) Pressure transients in which sonic effects are not significant.

. (3) Transients in which subcooled voids and thermal nonequilibrium are not impo rtant.

(4) Transients in which total flow reversal does not occur.

The code's thermal-hydraulic calculations can be performed for single- j phase liquid, two phase nucleate boiling, two phase film, boiling and single-phase vapor flow. In addition, the drift flux formulation used in the conservation equecions allows for both co-current upflow and countercurrent flow. It is expected, however, that the code will be applied primarily to the single phase liquid and two phase nucleate boiling flow regimes in co-current upflow.

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