Developing a Generalized Combined Model for Gas-liquid Two-phase Flow Pressure Drop in Elbow Bends

Authors

Aung N.Z
Yuwono T

Abstract

In this work, a generalized combined model was proposed for prediction of two-phase flow pressure drop in elbow bends. In this proposed model, restriction, frictional and elevational losses were considered separately. The frictional and static losses were approached by using Lockhart_Martinelli correlation. This model was tested to predict the pressure drop across the elbows with inside diameter of 0.036 m and R/D = 0.6, 2.5. The superficial liquid velocity was varied in the range of0.3~1.1 m/s and volumetric gas quality was varied from 0.02~0.3. The results from this model had good predictions with a maximum error of ±13% for long elbow bends and showed great discrepancy with a peak error of –50% for short elbow bends. The model is reliably acceptable for the elbow bends with relative radius (R/D) greater than 2 at volumetric gas fractions less than 0.3.

Publication Date

12-20-2012

Recommended Citation

N.Z, Aung and T, Yuwono (2012) "Developing a Generalized Combined Model for Gas-liquid Two-phase Flow Pressure Drop in Elbow Bends," ASEAN Journal on Science and Technology for Development: Vol. 29: No. 2, Article 2.
DOI: https://doi.org/10.29037/ajstd.55
Available at: https://ajstd.ubd.edu.bn/journal/vol29/iss2/2