Accelerator Production of Tritium Programmatic Environmental Impact Statement Input Submittal

Abstract

This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, nor any of their contractors, subcontractors, or their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government, any agency thereof or any of their contractors or subcontractors. The views and opinions expressed herein do not necessarily state or reflect those of the United States Government, any agency thereof or any of their contractors.

Vaporization of Tungsten-Metal in Steam at High Temperatures.

“…The heat of vaporization, AH, was treated two ways in developing the correlation to the experimental data. The correlation was first calculated using a value of AH suggested in the literature [7] which had substantial corroboration from other investigators; AH = 48.9 kcal/g-mol. This approach permitted direct comparison of the results reported in [7] to the present results as will be shown.…”

“…The correlation was first calculated using a value of AH suggested in the literature [7] which had substantial corroboration from other investigators; AH = 48.9 kcal/g-mol. This approach permitted direct comparison of the results reported in [7] to the present results as will be shown. The second approach was to allow AH to be treated as an independent variable to be determined by the mathematical form of the resulting correlation.…”

“…Two correlations to the present data are presented and compared to a published correlation by Kilpatrick and Lott [7]. The differences are discussed.…”

“…They correlatedtheir dataintwo temperatureranges, 1050°C to 1450°C and 1450°C to 17OO"C, due to the different functional dependencies ofthevaporization rates with temperature apparent in their data. The data correlation from [7] for their low-temperature range (1050 "C to 1450°C) is appropriate for comparison to the present data which covered the temperature range 803 "C to 1337 "C. Although the hydrodynamic flow regime of the steam was not reported in [7], ,the comparisons of the data to be discussed as well as other assessments of the experimental apparatus used in [7] suggest that the steam flow regime was laminar. The present data did not extend to the range of their high-temperature correlation; therefore, comparisons of the present data to the Kilpatrick-Lott correlation for the 1450 "C-1700 "C temperature range cannot be made.…”

“…where, in the first case, the heat of vaporization was assumed from [7] to be 48.9 k&g-m01 and, in the second case, the heat of vaporization was derived by correlation to be 47.23 kcal/g-mol. Both heats of vaporization are very close and there is no basis to prefer one to the other.…”