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Water pumping analysis and experimental validation of beach well infiltration intake system in a seawater

Huan ZHANG,Shu LIU,Xuejing ZHENG,Gaofeng CHEN

Frontiers in Energy 2015, Volume 9, Issue 3,   Pages 335-342 doi: 10.1007/s11708-015-0365-7

Abstract: In addition, the influencing factors of pumping water of beach well were also analyzed.The pumping water was found to increase when the distance between the beach well and the impervious boundary

Keywords： water pumping analysis     experimental validation     infiltration intake system     seawater source heat pump    

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PV based water pumping system for agricultural irrigation

T A BINSHAD,K VIJAYAKUMAR,M KALEESWARI

Frontiers in Energy 2016, Volume 10, Issue 3,   Pages 319-328 doi: 10.1007/s11708-016-0409-7

Abstract: This paper investigates the operation and analysis of the photovoltaic water pumping system in detailPower electronic controllers were designed and developed for the water pumping system using a boost converterFurther, the detailed method of analysis and simulation characteristics of such PV water pumping systemconcern of shortage of fossil fuel, global warming and energy security, the proposed PV based water pumping

Keywords： photovoltaic water pumping system     power electronic controller     solar irradiances and temperature    

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Ca-Alginate-Based Janus Capsules with a Pumping Effect for Intestinal-Targeted Controlled Release Article

Shuang Wen, XiaoJie Ju, Wenying Liu, Yuqiong Liu, Xingqun Pu, Zhuang Liu, Wei Wang, Rui Xie, Yousef Faraj, Liangyin Chu

Engineering 2023, Volume 24, Issue 5,   Pages 114-125 doi: 10.1016/j.eng.2022.05.021

Abstract:

A novel intestinal-targeted θ-shaped capsule with a pumping effect for the controlled releasedrug chamber shell dissolve to open the "microchannels," while the PAA swells to provide pumpingThe proposed θ-ACPSi capsules provide a potential and novel model for developing responsive pumping

Keywords： Capsules     Ca-alginate     Intestinal-targeted delivery     Pumping effects     Controlled release    

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Valveless pumping using a two-stage impedance pump

V. C.-C. LEE, Y. A. ABAKR, K.-C. WOO

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 3,   Pages 311-318 doi: 10.1007/s11465-013-0270-x

Abstract:

Impedance pump is defined as a type of valveless pumping mechanism, where an elastic tube is joinedthe past, but little experimental work was found to exploit the principle of multi-stage impedance pumpingThe aim of this work is to have an insight on the deliverable head and pumping rate of an open-loop two-stageimpedance pumping system.

Keywords： valveless pumping     open-loop     two-stage     unidirectional     composite    

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A control scheme with performance prediction for a PV fed water pumping system

Ramesh K GOVINDARAJAN,Pankaj Raghav PARTHASARATHY,Saravana Ilango GANESAN

Frontiers in Energy 2014, Volume 8, Issue 4,   Pages 480-489 doi: 10.1007/s11708-014-0334-6

Abstract: This paper focuses on modeling and performance predetermination of a photovoltaic (PV) system with a boost converter fed permanent magnet direct current (PMDC) motor-centrifugal pump load, taking the converter losses into account. Sizing is done based on the maximum power generated by the PV array at the average irradiation. Hence optimum sizing of the PV array for the given irradiation at the geographical location of interest is obtained using the predetermined values. The analysis presented here involves systems employing maximum power point tracking (MPPT) as they are more efficient than directly coupled systems. However, the voltage and power of the motor might rise above rated values for irradiations greater than the average when employing MPPT, hence a control scheme has been proposed to protect the PMDC motor from being damaged during these conditions. This control scheme appropriately chooses the optimum operating point of the system, ensuring long-term sustained operation. The numerical simulation of the system is performed in Matlab/Simulink and is validated with experimental results obtained from a 180 V, 0.5 hp PMDC motor coupled to a centrifugal pump. The operation of the system with the proposed control scheme is verified by varying the irradiation levels and the relevant results are presented.

Keywords： photovoltaic system     boost converter     maximum power point tracking (MPPT)     DC permanent-magnet motor     centrifugal pump    

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Implementation of photovoltaic water pumping system with MPPT controls

Najet REBEI,Ali HMIDET,Rabiaa GAMMOUDI,Othman HASNAOUI

Frontiers in Energy 2015, Volume 9, Issue 2,   Pages 187-198 doi: 10.1007/s11708-015-0359-5

Abstract: The two proposed methods have been validated by implementing the performance of the PV pumping systems

Keywords： photovoltaic generator (PVG)     maximum power point tracking (MPPT)     boost DC/DC converter     DC/AC inverter     moto-pump    

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Pumping into a cool future: electrocaloric materials for zero-carbon refrigeration

Frontiers in Energy 2022, Volume 16, Issue 1,   Pages 19-22 doi: 10.1007/s11708-022-0820-1

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Efficiency Optimization of Variable Frequency Variable Speed Water-supply Pumping Stations Based on Genetic

Liao Li,Lin Jiaheng,Zhang Chenghui

Strategic Study of CAE 2002, Volume 4, Issue 9,   Pages 54-58

Abstract: consumes much of electric energy in the city, and the quantity it consumes mainly depends on the pumps of pumpingSo it is important to optimize operation of water-supply pumping stations, for safety water supply andThis paper presents an optimal scheduling model of water-supply pumping stations based on approximation

Keywords： water-supply pumping station     approximation of numerical value     optimization     genetic algorithm    

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Temporal variation of PM-associated health effects in Shijiazhuang, Hebei

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 5, doi: 10.1007/s11783-020-1376-0

Abstract:

•Annual mean PM2.5 in Shijiazhuang were 87, 95, and 82 µg/m3 in 2015–2017.

Keywords： PM2.5     Health effects     Integrated exposure-response model     Shijiazhuang    

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Synergistic effects of sodium hypochlorite disinfection and iron-oxidizing bacteria on early corrosion

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 6, doi: 10.1007/s11783-021-1506-3

Abstract:

• The early corrosion process in the cast iron pipes was investigated.

Keywords： corrosion     Drinking water distribution systems     Chlorine disinfection     Iron-oxidizing bacteria     Coupling effects    

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Investigation of effects of Cocamide Diethanolamide chemical on physical and rheological properties of

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 1,   Pages 99-116 doi: 10.1007/s11709-021-0799-4

Abstract: The effects of different modification parameters and chemical additive on modified samples were investigated

Keywords： Cocamide Diethanolamide     bitumen modification     rheology     Superpave tests    

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Protective effects of lignin fractions obtained from grape seeds against bisphenol AF neurotoxicity viaantioxidative effects mediated by the Nrf2 pathway

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 7,   Pages 976-989 doi: 10.1007/s11705-022-2237-0

Abstract: The antioxidative and neuroprotective effects of the lignin fractions were evaluated with the apoptosisBPAF exposure had negative effects on the reactive oxygen species, malondialdehyde content, and superoxideAn immunofluorescence assay demonstrated that grape seed lignin induced protective effects on BPAF-injured

Keywords： grape seed lignin     structure     antioxidant     NE-4C cells     neuroprotection    

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Quorum sensing regulation methods and their effects on biofilm in biological waste treatment systems:

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 7, doi: 10.1007/s11783-021-1495-2

Abstract:

• Quorum sensing enhancement and inhibition methods are summarized.

Keywords： Quorum sensing     Biological waste treatment     Biofilm formation    

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Seismic effects on reinforcement load and lateral deformation of geosynthetic-reinforced soil walls

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4,   Pages 1001-1015 doi: 10.1007/s11709-021-0734-8

Abstract: Current design methods for the internal stability of geosynthetic-reinforced soil (GRS) walls postulate seismic forces as inertial forces, leading to pseudo-static analyses based on active earth pressure theory, which yields unconservative reinforcement loads required for seismic stability. Most seismic analyses are limited to the determination of maximum reinforcement strength. This study aimed to calculate the distribution of the reinforcement load and connection strength required for each layer of the seismic GRS wall. Using the top-down procedure involves all of the possible failure surfaces for the seismic analyses of the GRS wall and then obtains the reinforcement load distribution for the limit state. The distributions are used to determine the required connection strength and to approximately assess the facing lateral deformation. For sufficient pullout resistance to be provided by each reinforcement, the maximum required tensile resistance is identical to the results based on the Mononobe–Okabe method. However, short reinforcement results in greater tensile resistances in the mid and lower layers as evinced by compound failure frequently occurring in GRS walls during an earthquake. Parametric studies involving backfill friction angle, reinforcement length, vertical seismic acceleration, and secondary reinforcement are conducted to investigate seismic impacts on the stability and lateral deformation of GRS walls.

Keywords： geosynthetics     reinforced soil     retaining walls     seismic performance    

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Effects of manufactured nanomaterials on algae: Implications and applications

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 9, doi: 10.1007/s11783-022-1554-3

Abstract:

● Summary of positive and negative effects of MNMs on algae.

Keywords： Manufactured nanomaterials     Algae     Mechanisms     Effects     Implications     Applications    

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Title Author Date Type Operation

Water pumping analysis and experimental validation of beach well infiltration intake system in a seawater

Huan ZHANG,Shu LIU,Xuejing ZHENG,Gaofeng CHEN

Journal Article

PV based water pumping system for agricultural irrigation

T A BINSHAD,K VIJAYAKUMAR,M KALEESWARI

Journal Article

Ca-Alginate-Based Janus Capsules with a Pumping Effect for Intestinal-Targeted Controlled Release

Shuang Wen, XiaoJie Ju, Wenying Liu, Yuqiong Liu, Xingqun Pu, Zhuang Liu, Wei Wang, Rui Xie, Yousef Faraj, Liangyin Chu

Journal Article

Valveless pumping using a two-stage impedance pump

V. C.-C. LEE, Y. A. ABAKR, K.-C. WOO

Journal Article

A control scheme with performance prediction for a PV fed water pumping system

Ramesh K GOVINDARAJAN,Pankaj Raghav PARTHASARATHY,Saravana Ilango GANESAN

Journal Article

Implementation of photovoltaic water pumping system with MPPT controls

Najet REBEI,Ali HMIDET,Rabiaa GAMMOUDI,Othman HASNAOUI

Journal Article

Pumping into a cool future: electrocaloric materials for zero-carbon refrigeration

Journal Article

Efficiency Optimization of Variable Frequency Variable Speed Water-supply Pumping Stations Based on Genetic

Liao Li,Lin Jiaheng,Zhang Chenghui

Journal Article

Temporal variation of PM-associated health effects in Shijiazhuang, Hebei

Journal Article

Synergistic effects of sodium hypochlorite disinfection and iron-oxidizing bacteria on early corrosion

Journal Article

Investigation of effects of Cocamide Diethanolamide chemical on physical and rheological properties of

Journal Article

Protective effects of lignin fractions obtained from grape seeds against bisphenol AF neurotoxicity viaantioxidative effects mediated by the Nrf2 pathway

Journal Article

Quorum sensing regulation methods and their effects on biofilm in biological waste treatment systems:

Journal Article

Seismic effects on reinforcement load and lateral deformation of geosynthetic-reinforced soil walls

Journal Article

Effects of manufactured nanomaterials on algae: Implications and applications

Journal Article