Significance of polymer elasticity on drag reduction performance in dispersed oil-in-water pipe flow

Eshrati, M.; Al-Wahaibi, Talal; Al-Hashmi, A.R.; Al-Wahaibi, Yahya; Al-Ajmi, A.; Abubakar, Abdulkareem

doi:10.1016/j.cherd.2022.04.020

Cited by 3 publications

(6 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Most of them considered the effect of sudden injection of DRAs, either by homogenous or heterogenous method, while others attempted to find a correlation expression for the percentage drag reduction (%DR) achieved. However, among these agents, DRPs have been considered the most efficient 19 . Additionally, a literature survey of the published work on DRPs in multi-phase flow pipelines assured the growing interest 19 – 25 .…”

Section: Introductionmentioning

confidence: 99%

“…However, among these agents, DRPs have been considered the most efficient 19 . Additionally, a literature survey of the published work on DRPs in multi-phase flow pipelines assured the growing interest 19 – 25 . In addition to drag reduction, the aforementioned studies reported that DRPs can change the configurations of the co-existing phases.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, the mechanism of DRPs and the level of drag reduction have been investigated extensively and attributed to the flowrate 26 , the concentration of DRPs 27 , temperature 28 , 29 , flow channel geometry 30 , 31 , flow orientation 32 , phase distribution 20 , 33 , viscoelasticity 34 , and DRP molecular weight and its bond structure 19 , 35 . According to Karami and Mowla 35 , two opinions explain the existing drag reduction mechanisms.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Experimental insights into energy savings and future directions of drag reducing polymers in multiphase flow pipelines

Alsurakji

Al–Sarkhi²,

El‐Qanni

et al. 2023

Sci Rep

View full text Add to dashboard Cite

Frictional pressure drop has been grasping the attention of many industrial applications associated with multi-phase and academia. Alongside the United Nations, the 2030 Agenda for Sustainable Development calls for the exigency of giving attention to economic growth, a considerable reduction in power consumption is necessary to co-up with this vision and to adhere to energy-efficient practices. Thereinto, drag-reducing polymers (DRPs), which do not require additional infrastructure, are a much better option for increasing energy efficiency in a series of critical industrial applications. Therefore, this study evaluates the effects of two DRPs—polar water-soluble polyacrylamide (DRP-WS) and nonpolar oil-soluble polyisobutylene (DRP-OS)—on energy efficiency for single-phase water and oil flows, two-phase air–water and air-oil flows, and three-phase air–oil–water flow. The experiments were conducted using two different pipelines; horizontal polyvinyl chloride with an inner diameter of 22.5 mm and horizontal stainless steel with a 10.16 mm internal diameter. The energy-efficiency metrics are performed by investigating the head loss, percentage saving in energy consumption (both per unit pipe length), and throughput improvement percentage (%TI). The larger pipe diameter was used in experiments for both DRPs, and it was discovered that despite the type of flow or variations in liquid and air flow rates, there was a reduction in head loss, an increase in energy savings, and an increase in the throughput improvement percentage. In particular, DRP-WS is found to be more promising as an energy saver and the consequent savings in the infrastructure cost. Hence, equivalent experiments of DRP-WS in two-phase air–water flow using a smaller pipe diameter show that the head loss drastically increases. However, the percentage saving in power consumption and throughput improvement percentage is significantly compared with that found in the larger pipe. Thus, this study found that DRPs can improve energy efficiency in various industrial applications, with DRP-WS being particularly promising as an energy saver. However, the effectiveness of these polymers may vary depending on the flow type and pipe diameter.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Experimental insights into energy savings and future directions of drag reducing polymers in multiphase flow pipelines

Alsurakji

Al–Sarkhi²,

El‐Qanni

et al. 2023

Sci Rep

View full text Add to dashboard Cite

show abstract

“…However, among these agents, DRPs have been considered the most efficient (Eshrati, Al-Wahaibi et al 2022). Additionally, a literature survey of the published work on DRPs in multi-phase flow pipelines assured the growing interest , Edomwonyi-Otu, Dosumu et al 2021, Zhang, Dai et al 2021, Eshrati, Al-Wahaibi et al 2022, Mortimer and Fairweather 2022, Tan, Hu et al 2022. In addition to drag reduction, the aforementioned studies reported that DRPs can change the configurations of the co-existing phases.…”

Section: Introductionmentioning

confidence: 99%

“…Most of them considered the effect of sudden injection of DRAs, either by homogenous or heterogenous method, while others attempted to find a correlation expression for the percentage drag reduction (%DR) achieved. However, among these agents, DRPs have been considered the most efficient (Eshrati, Al-Wahaibi et al 2022). Additionally, a literature survey of the published work on DRPs in multi-phase flow pipelines assured the growing interest , Edomwonyi-Otu, Dosumu et al 2021, Zhang, Dai et al 2021, Eshrati, Al-Wahaibi et al 2022, Mortimer and Fairweather 2022, Tan, Hu et al 2022.…”

Section: Introductionmentioning

confidence: 99%

Drag Reducing Polymers in Multi-phase Flow Pipelines: Energy-Saving and Future Directives

Alsurakji

Al–Sarkhi

El‐Qanni

et al. 2023

Preprint

View full text Add to dashboard Cite

Frictional pressure drop has been grasping the attention of many industrial applications associated with multi-phase and academia. Alongside the United Nations, the 2030 Agenda for Sustainable Development calls for the exigency of giving attention to economic growth, a considerable reduction in power consumption is necessary to co-up with this vision and to adhere to energy-efficient practices. Thereinto, drag-reducing polymers (DRPs), which do not require additional infrastructure, are a much better option for increasing energy efficiency in a series of critical industrial applications. Therefore, this study evaluates the effects of two DRPs―polar water-soluble polyacrylamide (DRP-WS) and nonpolar oil-soluble polyisobutylene (DRP-OS)―on energy efficiency for single-phase water and oil flows, two-phase air-water and air-oil flows, and three-phase air-oil-water flow. The experiments were conducted using two different pipelines; horizontal polyvinyl chloride with an inner diameter of 22.5 mm and horizontal stainless steel with a 10.16 mm internal diameter. The energy-efficiency metrics are performed by investigating the head loss, percentage saving in energy consumption (both per unit pipe length), and throughput improvement percentage (%TI). Irrespective of flow types and variation in liquid and air flow rates, experiments conducted for both DRPs in larger pipe diameter were found to reduce head loss and increase saving in energy consumption and throughput improvement percentage. In particular, DRP-WS is found to be more promising as an energy saver and the consequent savings in the infrastructure cost. Hence, equivalent experiments of DRP-WS in two-phase air-water flow using a smaller pipe diameter show that the head loss drastically increases. However, the percentage saving in power consumption and throughput improvement percentage is significantly compared with that found in the larger pipe. Thus, this study found that DRPs can improve energy efficiency in various industrial applications, with polar water-soluble polyacrylamide being particularly promising as an energy saver. However, the effectiveness of these polymers may vary depending on the flow type and pipe diameter.

show abstract

Experimental Study of Friction Factor Reduction by Adding Aloe Vera Gel in Pipes Transporting Dams Sediments

Miloud,

Larbi,

Ali

2024

JERA

View full text Add to dashboard Cite

The phenomenon of siltation represents an enormous risk for the lifespan and safety of dams, and there are several methods for evacuating sediments, of which the hydraulic dredging technique is the most widely used. But during this operation there are load loss exists so it is necessary to find solutions to reduce it. The purpose of this work is to use the Aloe Vera gel as a load loss reducer during hydraulic dredging of dams. To carry out this study, a rheumatic characterization of dams sediments and dams sediments - Aloe Vera gel mixtures was carried out using a torque controlled rheometer (Discovery Hybrid Rheometer DHR2 from TA instrument) and a hydraulic study carried out on a closed-circuit installation comprising three pipes of different diameters and lengths, supplied by a centrifugal pump driven by a variable speed Diesel engine. The experimental work was carried in pipe of diameter D1=36.16 mm and length L1 = 12.24 m with the quantity of Aloe Vera 2 to 10 wt% and different speed of rotation of pump. The flow curves as a function of dose of Aloe Vera added to dam sediments were analysed by the Casson model. The calibration of installation has been fitted by the Blasius equation. The addition of Aloe Vera gel with a quantity range between 2 and 10 wt% to dams sediments of 40 wt% and 45 wt% induces an decrease in the yield stress and the viscosity infinite of dams sediments. The study also demonstrated that adding of 6 wt% of sodium tripolyphosphate to 40 wt% and 45 wt% dam sediments decreased the friction factor by 75% and 85% respectively

show abstract

Significance of polymer elasticity on drag reduction performance in dispersed oil-in-water pipe flow

Cited by 3 publications

References 57 publications

Experimental insights into energy savings and future directions of drag reducing polymers in multiphase flow pipelines

Experimental insights into energy savings and future directions of drag reducing polymers in multiphase flow pipelines

Drag Reducing Polymers in Multi-phase Flow Pipelines: Energy-Saving and Future Directives

Experimental Study of Friction Factor Reduction by Adding Aloe Vera Gel in Pipes Transporting Dams Sediments

Contact Info

Product

Resources

About