Skip to main content

Towards circular economy solutions for the management of rice processing residues to bioenergy via gasification (2019)
Journal Article
Vaskalis, I., Skoulou, V., Stavropoulos, G., & Zabaniotou, A. (2019). Towards circular economy solutions for the management of rice processing residues to bioenergy via gasification. Sustainability, 11(22), https://doi.org/10.3390/su1122643

An economic assessment of two circular economy scenarios of fluidized bed gasification-based systems for combined heat and power (CHP) generation, fueled with rice processing wastes, was conducted. In the first scenario, the gasification plant with a... Read More about Towards circular economy solutions for the management of rice processing residues to bioenergy via gasification.

Experimental investigation of the vertical upward single and two-phase flow pressure drops through gate and ball valves (2019)
Journal Article
Zeghloul, A., Bouyahiaoui, H., Azzi, A., Hasan, A., & Al-sarkhi, A. (2020). Experimental investigation of the vertical upward single and two-phase flow pressure drops through gate and ball valves. Journal of Fluids Engineering, 142(2), https://doi.org/10.1115/1.4044833

This paper presents an experimental investigation of the pressure drop through valves in vertical upward flows. Experiments were carried out using a 1¼" (DN 32) ball and a gate valve. Five opening areas have been investigated from fully open to the n... Read More about Experimental investigation of the vertical upward single and two-phase flow pressure drops through gate and ball valves.

A statistical model for dew point air cooler based on the multiple polynomial regression approach (2019)
Journal Article
Akhlaghi, Y. G., Ma, X., Zhao, X., Shittu, S., & Li, J. (2019). A statistical model for dew point air cooler based on the multiple polynomial regression approach. Energy, 181, 868-881. https://doi.org/10.1016/j.energy.2019.05.213

Swift assessment of evaporative cooling systems has become a necessity in practical engineering applications of this advanced technology. This paper bypasses details of the performance process and pioneers in developing a statistical model based on t... Read More about A statistical model for dew point air cooler based on the multiple polynomial regression approach.

Experimental study of the characteristics of an upward two-phase slug flow in a vertical pipe (2018)
Journal Article
Saidj, F., Hasan, A., Bouyahiaoui, H., Zeghloul, A., & Azzi, A. (2018). Experimental study of the characteristics of an upward two-phase slug flow in a vertical pipe. Progress in Nuclear Energy, 108, 428-437. https://doi.org/10.1016/j.pnucene.2018.07.001

Characteristics of the slug flow, mean void fraction, liquid slug and Taylor bubble lengths; and structure frequency were all extracted from the void fraction time series. Average void fractions at nine axial positions have been measured on a 6 m lon... Read More about Experimental study of the characteristics of an upward two-phase slug flow in a vertical pipe.

Experimental investigation of a vertically downward two-phase air-water slug flow (2017)
Journal Article
Bouyahiaoui, H., Azzi, A., Zeghloul, A., Hasan, A., & Berrouk, A. S. (2018). Experimental investigation of a vertically downward two-phase air-water slug flow. Journal of Petroleum Science and Engineering, 162, 12-21. https://doi.org/10.1016/j.petrol.2017.12.028

The present experimental work investigates the vertical downward two-phase slug flow in a transparent vertical pipe of 34 mm internal diameter. The gas and liquid superficial velocities are in the range of 0–3.27 m/s and 0.015–1.4 m/s respectively. T... Read More about Experimental investigation of a vertically downward two-phase air-water slug flow.

Churn flow in high viscosity oils and large diameter columns (2017)
Journal Article
Mohammed, S. K., Hasan, A., Dimitrakis, G., & Azzopardi, B. J. (2018). Churn flow in high viscosity oils and large diameter columns. International journal of multiphase flow, 100, 16-29. https://doi.org/10.1016...tiphaseflow.2017.11.018

Churn flow is an important intermediate flow regime occurring in between slug and annular flow patterns in two-phase flow, with profound implications in chemical and petroleum industry. The majority of studies to date in churn flow have been carried... Read More about Churn flow in high viscosity oils and large diameter columns.

Behavior and pressure drop of an upwardly two-phase flow through multi-hole orifices (2017)
Journal Article
Zeghloul, A., Azzi, A., Hasan, A., & Azzopardi, B. J. (2018). Behavior and pressure drop of an upwardly two-phase flow through multi-hole orifices. Proceedings of the Institution of Mechanical Engineers. Part C, Mechanical engineering science, 232(18), 3281-3299. https://doi.org/10.1177/0954406217736081

Experimental results on hydrodynamic behavior and pressure drop of two-phase mixture flowing upwardly in a pipe containing single- and/or multi-hole orifice plate are presented. It was found from the measurement of the void fraction upstream and down... Read More about Behavior and pressure drop of an upwardly two-phase flow through multi-hole orifices.

Microbubbles enhanced synthetic phorbol ester degradation by ozonolysis (2014)
Journal Article
Kuvshinov, D., Siswanto, A., & Zimmerman, W. (2014). Microbubbles enhanced synthetic phorbol ester degradation by ozonolysis. International journal of chemical, molecular, nuclear, materials and metallurgical engineering, 8(1), 76-79

A phorbol-12-myristate-13-acetate (TPA) is a synthetic analogue of phorbol ester (PE), a natural toxic compound of Euphorbiaceae plant. The oil extracted from plants of this family is useful source for primarily biofuel. However this oil might also b... Read More about Microbubbles enhanced synthetic phorbol ester degradation by ozonolysis.

Measurement of a void fraction in bubbly gas-water two phase flows using differential pressure technique (2012)
Journal Article
Hasan, A. Measurement of a void fraction in bubbly gas-water two phase flows using differential pressure technique. Applied mechanics and materials, 152-154, 1221-1226. https://doi.org/10.4028...ic.net/amm.152-154.1221

Multiphase flows, where two or even three fluids flow simultaneously in a pipe are becoming increasingly important in industry. In order to measure the flow rate of gas-water two phase flows accurately, the void fraction (gas volume fraction) in two... Read More about Measurement of a void fraction in bubbly gas-water two phase flows using differential pressure technique.

Experimental and theoretical study of the gas–water two phase flow through a conductance multiphase Venturi meter in vertical annular (wet gas) flow (2010)
Journal Article
Hasan, A. H., & Lucas, G. (2011). Experimental and theoretical study of the gas–water two phase flow through a conductance multiphase Venturi meter in vertical annular (wet gas) flow. Nuclear Engineering and Design, 241(6), 1998-2005. https://doi.org/10.1016/j.nucengdes.2010.09.006

Annular gas-liquid two phase flow widely occurs in nuclear industry. Various combinations of techniques have been employed in annular gas-liquid two phase flows to measure the flow parameters (e.g. liquid film thickness, gas volume fraction and the p... Read More about Experimental and theoretical study of the gas–water two phase flow through a conductance multiphase Venturi meter in vertical annular (wet gas) flow.