To aid in the development of a once-through steam generator to be used in a sodium-cooled nuclear reactor plant, a small-scale prototype model of the contemplated steam generator was fabricated and subjected to various testing programs. The prototype once-through steam generator, which consists of 7 falilength, 1/2-in. O.D. x 0.050-in. wall, single-wall tubes, was tested for a period of about 1 year to determine its steady-state characteristics and its transient behavior. One year of operation of the unit indicates the once-through steam generator to be entirely satisfactory. It has been subjected to, and successfully withstood, cycling conditions equivalent to a number of years of normal operation. It is interesting to note that, of the 25 unscheduled shut- downs that occurred during the year, none were the result of failure of liquid metal components or the once-through steam generator. The single-wall tube design was found to be entirely satisfactory. (auth)
U.S. Atomic Energy Commission depository collection.
Note
DOE contract number: AT(11-1)-476 NSA number: NSA-12-010534 OSTI Identifier 4335148 Research organization: Atomic Power Development Associates, Inc., Detroit.