Petros Gkotsis

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Questions related from Petros Gkotsis

Mechanism of bubble size increase in non-Newtonian liquids during upward co-current bubbly flow?

Bubbles ascending in non-Newtonian liquids are larger compared to bubbles in Newtonian liquids. Why?

08 January 2019 5,294 2 View

How are low HRTs connected with the increase of EPS (and consequently membrane fouling rate) in MBRs? What's the chemistry behind this?

It has been observed that low HRTs promote membrane fouling in MBRs, due to the increase in bound or soluble EPS.

28 September 2017 4,724 1 View

How can non-Newtonian (pseudoplastic) nature of liquid phase account for the decrease of void fraction in an upward co-current bubbly flow?

Maybe via the formation of larger bubbles which have higher rising velocity and result in the decrease of the respective residence time? If so, why shear-thinning behavior promotes the formation...

10 May 2017 6,043 9 View