The dataset was acquired over several measurement campaigns and contains differential pressure measurements in bubble columns of several diameters (100, 150, 330 mm) operated with gas in continuum (dry air) and liquid in batch. The fact that no humidification was provided was shown to have negligible influence. Liquid temperature was between 20-22°C. Pressure was atmospheric (column open to the environment).

For additional details, refer to the READ_ME and DETAILS_Setup files included in the dataset.