Gas-liquid flow through helical coils in horizontal orientation

Experimental investigations have been carried out to evaluate the two-phase pressure drop and the holdup for gas-Newtonian liquid flow through helical coils. 24 helical coils and three different liquids were used for the experiments. Empirical correlations have been developed to predict the two-phase friction factor and the liquid holdup as functions of various physical and dynamic variables of the system. Statistical analysis of the correlations suggests that they are of acceptable accuracy. On a mene des etudes experimentales afin d'evaluer la perte de charge et la retention biphasiques pour un ecoulement de gaz-liquide newtonien dans des serpentins helicoidaux. Vingt-quatre serpentins helicoidaux et trois liquides differents ont ete utilises pour ces experiences. Des correlations empiriques ont ete etablies pour predire le facteur de friction biphasique et la retention de liquide en fonction de diverses variables physiques et dynamiques du systeme. L'analyse statistique des correlations suggerent que leur precision est acceptable.