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Materials Science & Technology
The objectives of MSTD are: promote the advancement of materials science in Nuclear Science Technology; support the multidisciplines which constitute it; encourage research by providing a forum for the presentation, exchange, and documentation of relevant information; promote the interaction and communication among its members; and recognize and reward its members for significant contributions to the field of materials science in nuclear technology.
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Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
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The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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BWXT will scout potential TRISO fuel production sites in Wyoming
BWX Technologies Inc. announced today that its Advanced Technologies subsidiary has signed a cooperation agreement with the state of Wyoming to evaluate locations and requirements for siting a potential new TRISO nuclear fuel fabrication facility in the state.
J. R. Brodrick, P. A. Lowe, W. E. Burchill
Nuclear Technology | Volume 24 | Number 2 | November 1974 | Pages 137-148
Technical Paper | Reactor | doi.org/10.13182/NT74-A31470
Articles are hosted by Taylor and Francis Online.
Experiments have been conducted to determine the nature of the hydraulic interaction between emergency core coolant (ECC) water injected into a cold leg of a pressurized water reactor (PWR) and steam passing through that cold leg during core reflood following a loss-of-coolant accident. Measurements of flow rates, fluid temperatures, and static and differential pressures were made in 1/5 and 1/3 linear scale models of the PWR piping from the steam generator of an intact loop to the break including the pump inlet piping (loop seal), pump, cold leg, reactor vessel annulus, and broken cold leg. The principal conclusion is that the injection section performs as a jet condenser with 45-, 60-, and 75-deg injection; and condensation, but no jet pumping, occurs with 90-deg injection. The results also indicate that total condensation occurred in the cold leg in all tests wherein the water injection rate was sufficient to condense the steam assuming thermodynamic equilibrium. The data suggest that the differential pressure measured in the cold leg across the ECC injection nozzle, the water axial momentum flux, and the steam momentum flux can be combined into appropriate nondimensional groups in order to extrapolate the results to full scale. In addition, the data suggest that the influence of jet condenser stability upon the injection section pressure differential may decrease with increasing system size.