Predictions and measurements of isothermal airflow in a model once-through steam generator

Technical Report · Mon Nov 01 00:00:00 EST 1982

DOI:https://doi.org/10.2172/6628740· OSTI ID:6628740

Carter, H R; Promey, G J; Rush, G C

Once-Through Steam Generators (OTSGs) are used in the Nuclear Steam Supply Systems marketed by The Babcock and Wilcox Company (B and W). To analytically predict the three-dimensional, steady-state thermohydraulic conditions in the OTSG, B and W has developed a proprietary code THEDA-1 and is working in cooperation with EPRI to develop an improved version, THEDA-2. Confident application of THEDA requires experimental verification to demonstrate that the code can accurately describe the thermohydraulic conditions in geometries characteristic of the OTSG. The first step in the THEDA verification process is the subject of this report. A full-scale, partial-section model of two OTSG spans was constructed and tested using isothermal air as the working fluid. Model local velocities and pressure profiles were measured and compared to THEDA prediction for five model configurations. Over 3000 velocity measurements were taken and the results were compared to THEDA predictions. Agreement between measured and predicted velocity data was generally better than +-12.5%.

• Research Organization: Babcock and Wilcox Co., Alliance, OH (USA). Research and Development Div.
• OSTI ID: 6628740
• Report Number(s): EPRI-NP-2643; ON: DE83900643
• Resource Relation: Other Information: Portions of document are illegible
• Country of Publication: United States
• Language: English

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