Showing papers on "Water flow published in 2022"
TL;DR: In this paper, a review aims to address the scientific literature regarding the spatial and temporal factors affecting global freshwater microplastic distributions and abundances, and a total of 75 papers, published through June 2021 and containing an earliest publication date of October 2014, was identified by a Web of Science database search.
74 citations
TL;DR: In this paper, a magnetically responsive and flexible superhydrophobic photothermal film (PFe-PCS) consisting of polydimethylsiloxane (PDMS), iron powder (Fe), and candle soot (CS) was demonstrated.
71 citations
TL;DR: In this paper, the electromagnetic forces on the SWCNT/water flow with microorganisms over a Riga plate subject to slip effects were discussed. And the Runge-Kutta-Fehlberg (RKF-45) method was applied to numerically solve the extremely nonlinear system.
Abstract: Electromagnetohydrodynamic (EMHD) is very important because of its numerous advantages such as flow control in fluidics networks, fluid pumping, thermal reactors, mixing, fluid stirring, liquid chromatography, and micro coolers. Based on the above applications in this article discussed the electromagnetic forces on the SWCNT/water flow with microorganisms over a Riga plate subject to slip effects. In addition, the uniform heat source/sink effect is used in the energy equation, as well as the thermophoretic effect in the concentration equation. The governing nonlinear system of partial differential equations (PDEs) was reduced to ordinary differential equations (ODEs) by applying the appropriate similarity variables. Hence, Runge-Kutta-Fehlberg (RKF-45) method was applied to numerically solve the extremely nonlinear system. Based on the analysis of the results, it is worth concluding that raising the role of slip effects lowers the velocity, temperature, and concentration curves, while increasing the solid volume fraction increases the temperature, concentration, and motile microorganism density.
35 citations
01 Jan 2022
35 citations
TL;DR: In this paper, a nanocapillary membrane containing both nanopores and nanochannels based on an assembly of holey graphene oxide (HGO) nanosheets was constructed to enable water molecules to permeate and simultaneously evaporate from the nanostructure.
23 citations
TL;DR: In this paper, a series of experiments on hydrate reformation and dissociation under different grain filling patterns and thermal history conditions were conducted to acquire a comprehensive understanding of memory effect of gas hydrate, and the homogeneous hydrate distribution under memory effect has been further investigated and evaluated by the hydrate heterogeneity degree and dead-end porosity for the first time.
21 citations
TL;DR: In this article, SuperLip, an innovative technology assisted by supercritical carbon dioxide (SC-CO2), was used to produce unloaded and vitamin D3 (VD3)-loaded nanoliposomes.
18 citations
TL;DR: In this article, the authors investigated the flow and heat transfer over a modulated surface in the form of triangular protrusions using MWCNTs-TiO2 nanohybrids.
17 citations
TL;DR: In this paper, the effects of various operational parameters (maximum flowrate, admissible reservoir-pressure drawdown, borehole diameter) and reservoir parameters (permeability anisotropy and relative permeability curves) on the CO2 and water flow regime in the production well and on the power generation of a CPG system were investigated.
16 citations
TL;DR: In this paper, a dielectric barrier discharge (DBD) non-thermal plasma was employed to eliminate bisphenol A (BPA) and the influences of several vital experimental parameters, including discharge voltage, initial pH of solution, and rate of water flow on degradation of BPA were explored in detail.
15 citations
TL;DR: In this article, the authors developed a novel feed channel with diagonal flow direction, for which the performances were examined by filtration experiments on real membrane elements and the impacts of channel configuration were analyzed via the coupling of computational fluid dynamics simulation with response surface methodology.
TL;DR: In this article , a design for a photovoltaic-thermal (PVT) assembly with a water-cooled heat sink was planned, constructed, and experimentally evaluated in the climatic conditions of the southern region of Iraq during the summertime.
Abstract: A design for a photovoltaic-thermal (PVT) assembly with a water-cooled heat sink was planned, constructed, and experimentally evaluated in the climatic conditions of the southern region of Iraq during the summertime. The water-cooled heat sink was applied to thermally manage the PV cells, in order to boost the electrical output of the PVT system. A set of temperature sensors was installed to monitor the water intake, exit, and cell temperatures. The climatic parameters including the wind velocity, atmospheric pressure, and solar irradiation were also monitored on a daily basis. The effects of solar irradiation on the average PV temperature, electrical power, and overall electrical-thermal efficiency were investigated. The findings indicate that the PV temperature would increase from 65 to 73 °C, when the solar irradiation increases from 500 to 960 W/m2, with and without cooling, respectively. Meanwhile, the output power increased from 35 to 55 W when the solar irradiation increased from 500 to 960 W/m2 during the daytime. The impact of varying the mass flow rate of cooling water in the range of 4 to 16 L/min was also examined, and it was found that the cell temperature declines as the water flow increases in intensity throughout the daytime. The maximum cell temperature recorded for PV modules without cooling was in the middle of the day. The lowest cell temperature was also recorded in the middle of the day for a PVT solar system with 16 L/min of cooling water.
TL;DR: In this article , a highly flexible and efficient evaporation-induced electricity generator (EIEG) that dexterously exploits the directional water capillary flow inside the silicon nanowires (SiNWs) mesh nanopores is developed.
TL;DR: In this article, the influence of the W/O emulsion on efficient heavy oil recovery is analyzed by the production dynamics and produced fluid emulsified states of oilfields, and the effects of the water content, surfactant concentration, oil-water ratio on the emulsification state, droplet size distribution and its fluidity in porous medium were studied by simulating the re-emulsification process.
TL;DR: In this article, the physical, ecological, and biogeochemical characteristics of ecohydrological interfaces are summarized on the basis of introducing the development history of eco-hydrology and the concept of ecoHydrological interface.
TL;DR: In this paper, the authors combined experimental analysis and numerical modeling to assess micro-annuli development at casing-cement interfaces, and found that once a microannulus forms, it remains open at internal casing pressures as high as 40 MPa.
TL;DR: In this article, a combination of the Finite Element Method (FEM), the Particle Finite Elements Method (PFEM), and the Discrete Element Method(DEM) for modeling and analyzing the failure of reinforced concrete structures under impulsive wave forces originating from free-surface flows in critical water hazards is presented.
TL;DR: In this article, a green inhibitor polyaspartate (PASP) was used to prevent calcium carbonate (CaCO3) scale formation in two road tunnel drainages.
TL;DR: In this article , a new equation is proposed for the estimation of the hydraulic conductivity of unsaturated soil by considering the film flow, which is verified with the experimental data from literature.
Abstract: In the conventional method for the estimation of hydraulic conductivity of unsaturated soil, only the capillary water is considered in the estimation. However, it is known that the water film can be formed around soil particles due to the adsorptive force. The water may migrate in soil through the water film. As a result, both water moves in the capillary water and water film should be considered in the estimation. In this paper, a new equation is proposed for the estimation of the hydraulic conductivity of unsaturated soil by considering the film flow. The proposed method is verified with the experimental data from literature. It is recommended that both capillary water flow and film flow should be considered in the estimation of the hydraulic conductivity of unsaturated soil.
TL;DR: In this article, the authors explored the effect of enzymatic quenching on the adhesion strength of biofilms during the formation process to inhibit biomass accumulation and showed that the successful reduction of the biofilm strength through QQ could provide a new strategy for the management and regulation of biofilm adhesion in the bioreactor.
TL;DR: In this article, the effects of using different feeding strategies on the growth performance, feed efficiency, antioxidant capacity, digestive enzyme activities, and serum biochemical parameters of common carp, Cyprinus carpio for 40 days under high-temperature stress were evaluated.
TL;DR: In this paper, the subcritical water hydrolysis (SWH) of poultry feathers was used to recover amino acids from protein-rich wastes, including valine, methionine, tryptophan, phenylalanine and leucine.
Abstract: This study assessed the subcritical water hydrolysis (SWH) of poultry feathers to recover amino acids. Experiments were conducted in a semi-continuous flow-through subcritical reactor (110 mL), which was operated over a range of temperatures (210–250 °C) and water flow rates (5–15 mL min–1), combined through a 22 central composite design, at constant feed (10 g) and pressure (15 MPa). The results demonstrated that non-essential and essential amino acids were obtained from SWH of poultry feathers. The highest hydrolysis temperature resulted in the highest concentrations of valine, methionine, tryptophan, phenylalanine, isoleucine, leucine, and lysine. Otherwise, threonine, histidine, and arginine were obtained more effectively at lower temperatures. The response surface methodology was adopted to identify the best conditions for amino acid production, and it was possible to identify the ranges of temperatures and water flow rates to be used to recover specific amino acids. This study allowed concluding that SWH is a promising eco-friendly technology to recover amino acids from protein-rich wastes.
TL;DR: In this paper, the suitability of data-driven models of different complexity for predicting the concentrations of E. coli in the river Gota alv at the water intake of the drinking water treatment plant in Gothenburg, Sweden was evaluated.
TL;DR: In this article , the effect of simultaneous use of air and water-cooled flow on the efficiency of a solar photovoltaic thermal (PVT) panel was examined and the results showed that an increment in the VFR of water enhances the amount of electrical efficiency (ELE), thermal efficiency (THE), total efficiency (TOE), and amount of electricity generated by PVT and the heat transfer (HT) takes place in PVT.
TL;DR: In this paper, the authors explore the causes of slow development of the frozen wall in permeable strata with high seepage velocity, and the heat transfer law of freezing pipes in such strata was studied based on the hydrothermal coupling model test system.
TL;DR: In this paper, a closed-form expression of three-dimensional pressure distribution in both subsonic and supersonic regimes of compressible flow passing along the length of shell is presented by studying conservation of mass, generalized Bernoulli equation and linear fluid-solid interaction.
TL;DR: In this article, an assessment of an innovative subsurface irrigation system (Chahbani) was conducted in Saharan Jemna oasis (South of Tunisia) to promote the development of sustainable oases, in the context of global changes and water resources scarcity and degradation.
TL;DR: In this article, a series of laboratory experiments were done to determine the behavioral responses of juvenile silver carp to the hydrodynamic forces near the separation zone of a channel confluence, and the locomotion and trajectory of juvenile Silver carp were recorded by infrared thermal imaging, while the flow velocity field near separation zone was measured by a Particle Image Velocimetry (PIV) system.
TL;DR: In this paper, a new relationship between h and soil electrical resistivity (ρ), developed from the Gardner water retention model and Archie's second law, was used to estimate h values lower than the air entry value and a formation factor (expressed on log-scale) less than 1.
TL;DR: In this paper, a demand and discharge-driven water circularity assessment framework for cities is proposed, which integrates anthropogenic water flow data based on water demand in an urban system and treated wastewater discharge for primary water demand substitution.
Abstract: With significant efforts made to consider water reuse in cities, a robust and replicable framework is needed to quantify the degree of urban water circularity and its impacts from a systems perspective. A quantitative urban water circularity framework can benchmark the progress and compare the impacts of water circularity policies across cities. In that pursuit, we bring together concepts of resource circularity and material flow analysis (MFA) to develop a demand- and discharge-driven water circularity assessment framework for cities. The framework integrates anthropogenic water flow data based on the water demand in an urban system and treated wastewater discharge for primary water demand substitution. Leveraging the water mass balance, we apply the framework in evaluating the state of water circularity in Singapore from 2015 to 2019. Overall, water circularity has been steadily increasing, with 24.9% of total water demand fulfilled by secondary flows in 2019, potentially reaching 39.6% at maximum water recycling capacity. Finally, we discuss the wider implications of water circularity assessments for energy, the environment, and urban water infrastructure and policy. Overall, this study provides a quantitative tool to assess the scale of water circularity within engineered urban water infrastructure and its application to develop macro-level water systems planning and policy insights.