Measurement of thermal properties of SNAP fuel materials

Vetrano, J. S.; Ambrose, C.J.; Culley, G.E.; Finch, F.A.; Nakata, M.M.; Deem, H.W.; Eldridge, E. A.; Foster, E.L.; Lagedrost, J. F.; Matolich, J.; Nelson, S.G.

doi:10.2172/4476908

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1968

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“…Hence, since the crystal structure of SNAP fuel varies with hydrogen content, these characteristic temperatures should be expected to depend on composition. In order to determine these temperatures and the sum of the C -C coefficient and electronic heat p V capacity for each composition, an iterative least squares computer program was (22) developed, based on the method described by Young. For each composition, the data to which the theoretical heat capacity was to be fit consisted of values of heat capacity calculated at 50° intervals, using the polynomials given in Table 4. These data were fit to the expression Cp = Cj^ + xC^ + yCy + AT , ... (22) where y is the U/Zr atom ratio, A is the sum of K + L, and C^^, the molar heat (23) capacity of uranium, is given by …”

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confidence: 99%