Dilute–gas thermal conductivity of difluoromethane (HFC–32)
Annotation
Comprehensive thermal conductive measurements have been obtained for the refrigerant HFC-32. The range of state points studied include those with temperatures from 296,93 K to 366,07 К and pressures to 0,1 MPa. The measurements differ from accurate correlating equation by less than 1%. Extensive comparisons have been made with two productive conformal kinetic theory models one which uses the Eucken-type equation and the other using Mason-Monchick functional form. The viscosity as well as the thermal conductivity were determined with Lennard-Jones pair potential. Results obtained with Mason-Monchick equation including effective diffusion coefficient for polar diluted gases. Good agreement was found with between experimental results and theoretical calculations.
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