| Title | Void Fraction Correlations on Geothermal Two-Phase Flows |
|---|---|
| Authors | Alvin Remoroza |
| Year | 2026 |
| Conference | World Geothermal Congress |
| Keywords | Two-phase flow, void fraction, drifts flux, correlation |
| Abstract | Using geothermal production well tracer flow test (TFT) and bore output measurements (BOM), slip ratios and void fractions were correlated to the steam qualities and discharge enthalpies. It showed good correlation between total discharge enthalpy and flow quality to the calculated void fraction. The correlations point us to indirect measurement of well discharge enthalpies based on void fraction determination. Gamma ray technique and electrical capacitance tomography were field tested to determine void fractions in two-phase flows. A suitable correlation equation was identified to best estimate total discharge fluid enthalpy and slip ratio of water and steam velocities given indirect measurement of void fraction. |