Prediction of GE-ATLAS transient boiling transition data using RETRAN-02/RETRAN-15F

Journal Article · Sun May 01 04:00:00 EDT 1983 · Nucl. Technol.; (United States)

OSTI ID:5316079

Ansari, A A.F.; Beller, D K; Burns, K J; Hague, Q A; Schultz, S P

The steady-state operating limit for boiling water reactors (BWRs) is determined by calculating the transient change in the critical power ratio (CPR). To determine the operating limit CPR, a method for calculating the ..delta..CPR during transients is needed. The RETRAN code can be used as a tool in the evaluation of transient CPRs for determining the operating margin for BWRs. Since the RETRAN code does not contain a critical power calculation, the ..delta..CPR cannot be obtained directly from RETRAN. Therefore, a program, TCPYA01, designed to evaluate transient CPR (and ..delta..CPR) based on the GEXL correlation using time-dependent conditions from RETRAN was used. The justification for using the RETRAN code is provided by predicting transient boiling transition data taken at the GE-ATLAS loop facility. Results of the sensitivity studies performed on nodalization, void models, and time-step size are also provided.

• Research Organization: Yankee Atomic Electric Company, 1671 Worcester Road, Framingham, Massachusetts 01701
• OSTI ID: 5316079
• Journal Information: Nucl. Technol.; (United States), Journal Name: Nucl. Technol.; (United States) Vol. 61:2; ISSN NUTYB
• Country of Publication: United States
• Language: English

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