ANALYTICAL COMPARISON OF RELATIVE HEAT-TRANSFER COEFFICIENTS AND PRESSURE DROPS OF INERT GASES AND THEIR BINARY MIXTURES

摘要

This analysis was conducted to determine and compare the relative heattransfer coefficients and pressure drops of the inert gases and their binary mixtures. The required transport properties were determined from kinetic theory correlations, and the relative heat-transfer coefficients and pressure drops were determined from commonly used heat-transfer and pressure-drop equations.nThe relative heat-transfer coefficients and pressure drops of the binary mixtures cannot-be obtained by common averaging methods from the pure gas values. For a given molecular weight, the heat-transfer coefficients of the binary mixtures are higher than those of the pure component for both laminar and turbulent flow and the turbulent-flow pressure drops for all the mixtures are comparable to that of the pure component. The nature of the laminar-flow pressure-drop relation precludes any generalization.