Principles of operation and data reduction techniques for the LOFT Drag Disc Turbine Transducer (DTT)

Technical Report · Tue Feb 01 04:00:00 EST 1977

OSTI ID:7209557

Silverman, S

A transducer for measuring primary system mass flow rates in LOFT experiments was designed which combines a drag dose and turbine in a single unit. The available experimental data for the LOFT turbine in single-phase, all water flow, are summarized. The turbine dynamic response in all steam and in all water is also considered. Two of the available turbine meter models for two-phase flow are reviewed. The results predicted by the models are compared with the available two-phase flow data. A flow map for the Westinghouse Canada Ltd. (WCL) full flow tests is also presented. Because of deficiencies in the various two-phase flow theories for the turbine, new theories are presented. The drag disc in single- and two-phase flow is reviewed. Theoretical predictions are compared with the available experimental data. In addition, the dynamic response and the weight calibration of the drag disc are considered. Methods are presented for applying the drag disc and turbine data to two-phase flow.

• Research Organization: SEE CODE- 9502158 EG and G Idaho, Inc., Idaho Falls (USA). Idaho National Engineering Lab.
• DOE Contract Number: EY-76-C-07-1570
• OSTI ID: 7209557
• Report Number(s): TID-27656
• Country of Publication: United States
• Language: English

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