Transport property correlations for the niobium-1% zirconium alloy Academic Article uri icon

abstract

  • Correlations were developed for the electrical resistivity (ρ), thermal conductivity (k), and hemispherical total emittance (ε{lunate}) of niobium-1% zirconium as functions of temperature. All three correlations were developed as empirical fits to experimental data. ρ = 5.571 + 4.160 × 10-2(T) - 4.192 × 10-6(T)2 μΩcm, k = 13.16(T)0.2149 W/mK, ε{lunate} = 6.39 × 10-2 + 4.98 × 10-5(T) + 3.62 × 10-8(T)2 - 7.28 × 10-12(T)3. The relative standard deviation of the electrical resistivity correlation is 1.72% and it is valid over the temperature range 273 to 2700 K. The thermal conductivity correlation has a relative standard deviation of 3.24% and is valid over the temperature range 379 to 1421 K. The hemispherical total emittance correlation was developed for smooth surface materials only and represents a conservative estimate of the emittance of the alloy for space reactor fuel element modeling applications. It has a relative standard deviation of 9.50% and is valid over the temperature range 755 to 2670 K. © 1990.

author list (cited authors)

  • Senor, D. J., Thomas, J. K., & Peddicord, K. L.

citation count

  • 1

complete list of authors

  • Senor, David J||Thomas, J Kelly||Peddicord, KL

publication date

  • October 1990