Slug Liquid Holdup

Experimentally measured HLS data from 22 different studies are made available as a dataset for the present study. Each data point consists of the measured HLS for a given set of VSG, VSL, µL, D, Ø, σL, ρL and ρG. The dataset covers flow direction from horizontal to vertical, liquid viscosity from 1 mPa.s to 5300 mPa.s and surface tension from 27.5 to 72 mN/m. The ranges of the other flow parameter are: VSG (0.046-15.308) m/s, VSL (0.0155-3.048) m/s, D (0.0254-0.1) m, ρL (800-1000) kg/m4 and ρG (1-4) kg/m3. The HLS was measured using capacitance sensors, which were dynamically calibrated by using quick closing ball valves. Two types of capacitance sensors were adopted in the included studies, namely: two-wire and ring type sensors. Most of the experimental studies included in the present paper preferred using two-wire sensor due to its easy static calibration as compared to the ring type sensor.