Thermodynamic and Transport Properties ofSupercritical Helium

As a cryogen, supercritical helium is frequently used in a variety of superconducting applications. The requisite heat transfer rate is provided by its distinctive thermo physical characteristics in the supercritical domain. Since supercritical helium fluid is frequently utilized in the simulation of different superconducting machines, such as ITER, this paper seeks to establish property correlations for this fluid. The pressure and temperature-dependent characteristics have been extracted from the REFPROP database. Numerical software is utilized for statistical investigations. For parameters related to specific heat, thermal conductivity, and viscosity, developed correlations demonstrated high agreement with the NIST database. With the created correlation, relative errors in density estimation have been kept to under 6%. The established correlation can, it is concluded, be directly programmed to the material repository when carrying out simulations, saving computational time as well as expense.