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Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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ANS joins others in seeking to discuss SNF/HLW impasse
The American Nuclear Society joined seven other organizations to send a letter to Energy Secretary Christopher Wright on July 8, asking to meet with him to discuss “the restoration of a highly functioning program to meet DOE’s legal responsibility to manage and dispose of the nation’s commercial and legacy defense spent nuclear fuel (SNF) and high-level radioactive waste (HLW).”
H. Geng, S. M. Ghiaasiaan
Nuclear Science and Engineering | Volume 129 | Number 3 | July 1998 | Pages 294-304
Technical Paper | doi.org/10.13182/NSE98-A1983
Articles are hosted by Taylor and Francis Online.
A model for critical flow in capillaries and cracks of an initially subcooled liquid containing a dissolved noncondensable gas is presented. The model is based on the iterative numerical solution of, and the imposition of critical flow conditions on, one-dimensional two-phase flow conservation equations, everywhere assuming homogeneous equilibrium two-phase flow, and equilibrium between liquid and vapor-noncondensable mixture phases with respect to the concentration of the noncondensable.Model predictions are compared with data from two different sources with good agreement, indicating that the assumption of complete equilibrium between the two phases is adequate for estimating the critical flow in microchannels and cracks. The effect of dissolved noncondensables is examined, and it is shown that the desorption of dissolved noncondensables from water can lead to a slight (up to several percent) reduction in the critical flow rate.