Resource Type

Journal Article 999

Conference Videos 25

Year

2024 2

2023 81

2022 115

2021 78

2020 47

2019 53

2018 43

2017 41

2016 45

2015 50

2014 49

2013 44

2012 52

2011 43

2010 52

2009 39

2008 30

2007 38

2006 15

2005 14

open ︾

Keywords

sustainable development 13

water mist 13

water resources 13

drinking water 11

water 11

food security 10

water quality 10

water treatment 9

water resource 7

Adsorption 6

Wastewater treatment 6

adsorption 6

water environment 6

Membrane fouling 5

hydrogen 5

hydrogen production 5

management 5

supply chain 5

surface water 5

open ︾

Search scope:

排序： Display mode:

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:

Water-supply enterprise consumes much of electric energy in the city, and the quantity it consumesmainly depends on the pumps of pumping stations.So 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    

HTML PDF Collect

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 systemWith the concern of shortage of fossil fuel, global warming and energy security, the proposed PV based waterpumping system can meet the significant demand of electricity and serve for the agricultural sector.

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

HTML PDF Collect

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 boundarybecomes longer, when the distance between the beach well and the supplying water source shortens, when

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

HTML PDF Collect

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    

HTML PDF Collect

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    

HTML PDF Collect

Internal incentives and operations strategies for the water-saving supply chain with cap-and-trade regulation

Zhisong CHEN, Li FANG, Huimin WANG

Frontiers of Engineering Management 2019, Volume 6, Issue 1,   Pages 87-101 doi: 10.1007/s42524-019-0006-7

Abstract: (CAT) regulation to solve the contradiction between the limited water supply and the rapid growing waterSupply chain equilibrium and coordination models under the benchmark scenario without water saving andof the water-saving supply chain under the scenario without/with CAT regulation. (2) The coordinationstrategy based on the revenue sharing contract could efficiently coordinate the water-saving supplyin the water-saving supply chain and improves the operational performance of water-saving supply chain

Keywords： water-saving supply chain     equilibrium     coordination     internal incentive     cap and trade regulation    

HTML PDF Collect

Seismic vulnerability assessment of water supply network in Tianjin, China

Yanxi CHEN,Zhiguang NIU,Jiaqi BAI,Yufei WANG

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 5,   Pages 767-775 doi: 10.1007/s11783-014-0632-6

Abstract: The water supply network (WSN) system is a critical element of civil infrastructure systems.a case study, a quantitative vulnerability assessment method was used to assess the damage that the watersupply pipelines would suffer in an earthquake, and the finite element software ABAQUS and fuzzy mathematic

Keywords： water supply network     seismic vulnerability assessment     finite element     fuzzy mathematics    

HTML PDF Collect

Decision Support System for emergency scheduling of raw water supply systems with multiple sources

Qi WANG, Shuming LIU, Wenjun LIU, Zoran KAPELAN, Dragan SAVIC

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 5,   Pages 777-786 doi: 10.1007/s11783-013-0537-9

Abstract: DSS) is designed to eliminate the impact of sudden contamination incidents occurring upstream in raw watersupply systems with multiple sources.The DSS consists of four functional modules, including water quality prediction, system safety assessmentFirst, the water quality variations on specific cross-sections are calculated given the pollution informationscenario analysis, it is demonstrated that this DSS tool is instrumental in emergency scheduling for the water

Keywords： decision support system     raw water supply system     contamination incident     emergency scheduling     hydraulic    

HTML PDF Collect

Energy supply for water electrolysis systems using wind and solar energy to produce hydrogen: a case

Mostafa REZAEI, Ali MOSTAFAEIPOUR, Mojtaba QOLIPOUR, Mozhgan MOMENI

Frontiers in Energy 2019, Volume 13, Issue 3,   Pages 539-550 doi: 10.1007/s11708-019-0635-x

Abstract: Due to acute problems caused by fossil fuels that threaten the environment, conducting research on other types of energy carriers that are clean and renewable is of great importance. Since in the past few years hydrogen has been introduced as the future fuel, the aim of this study is to evaluate wind and solar energy potentials in prone areas of Iran by the Weibull distribution function (WDF) and the Angstrom-Prescott (AP) equation for hydrogen production. To this end, the meteorological data of solar radiation and wind speed recorded at 10 m height in the time interval of 3 h in a five-year period have been used. The findings indicate that Manjil and Zahedan with yearly wind and solar energy densities of 6004 (kWh/m ) and 2247 (kWh/m ), respectively, have the greatest amount of energy among the other cities. After examining three different types of commercial wind turbines and photovoltaic (PV) systems, it becomes clear that by utilizing one set of Gamesa G47 turbine, 91 kg/d of hydrogen, which provides energy for 91 car/week, can be produced in Manjil and will save about 1347 L of gasoline in the week. Besides, by installing one thousand sets of X21-345 PV systems in Zahedan, 20 kg/d of hydrogen, enough for 20 cars per week, can be generated and 296 L of gasoline can be saved. Finally, the RETScreen software is used to calculate the annual CO emission reduction after replacing gasoline with the produced hydrogen.

Keywords： wind energy     solar energy     water electrolysis     hydrogen production     Weibull distribution function (WDF)     Angstrom-Prescott    

HTML PDF Collect

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    

HTML PDF Collect

The “Tiangong” Chinese Space Station project

Yang HONG

Frontiers of Engineering Management 2018, Volume 5, Issue 2,   Pages 278-283 doi: 10.15302/J-FEM-2018202

Keywords： manned space station     space station project     basic design    

HTML PDF Collect

Image analysis of soil failure on defective underground pipe due to cyclic water supply and drainage

Toshifumi MUKUNOKI, Naoko KUMANO, Jun OTANI

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 2,   Pages 85-100 doi: 10.1007/s11709-012-0159-5

Abstract: Authors focused this problem and hence performed model tests with water-inflow and drainage cycle inIn those studies, water was supplied into the model grounds from the defected underground pipe modelAs results, it was observed that the loosening area was generated from the defected part with water-inflowcollapse of the ground with high relative density more than 80% would be avoided in a few cycles of water

Keywords： relative density     grain property     model test     road subsidence     underground pipe     image processing     X-ray CT    

HTML PDF Collect

Study on Distribution Method of Auto-control Valves in Water Supply Network

Zhang Hongwei,Guo Yiping,Niu Zhiguang,Zhang Li

Strategic Study of CAE 2005, Volume 7, Issue 7,   Pages 71-75

Abstract: p>This paper presented a new approach to realize the optimal distribution of auto-control valves in watersupply network by hydraulic calculation.Last, this approach was tried on an example water supply network, and a general principle for the optimalit could be found that this approach was practical, easy to operate and suitable for application to water

Keywords： auto-control valve     water supply network     distribution     influencing degree on network    

HTML PDF Collect

Evaluation and Recombination of Property Right Configuration for Urban Water Supply System

Xiao Wen,Ouyang Fangrui,Wang Xianjia

Strategic Study of CAE 2004, Volume 6, Issue 7,   Pages 48-52

Abstract:

In this paper, two basic models of recombination of property right configuration for urban water supplyThe evaluation index and methodology of property right configuration for urban water supply system are

Keywords： urban water supply system     property right configuration     recombination of property right     evaluation of    

HTML PDF Collect

Comparison of shallow tunneling method with pile and rib method for construction of subway station in

Sina AMIRI; Ali Naghi DEHGHAN

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 6,   Pages 704-717 doi: 10.1007/s11709-021-0746-4

Abstract: First, by selecting Station Z6 located in the Tehran Subway Line 6 as a case study, the constructionThe maximum ground settlement of 29.84 mm obtained from this method was related to the station axis,instrumentation data indicated the confirmation and accuracy of the excavation and construction process of Stationvalidated by instrumentation data, the value of the ground surface settlement was investigated during the stationSTM, it is possible to optimize some critical geometric parameters of the support system during the station

Keywords： shallow tunneling method     pile and rib method     ground surface settlement     subway station construction    

HTML PDF Collect

Title Author Date Type Operation

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

Liao Li,Lin Jiaheng,Zhang Chenghui

Journal Article

PV based water pumping system for agricultural irrigation

T A BINSHAD,K VIJAYAKUMAR,M KALEESWARI

Journal Article

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

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

Internal incentives and operations strategies for the water-saving supply chain with cap-and-trade regulation

Zhisong CHEN, Li FANG, Huimin WANG

Journal Article

Seismic vulnerability assessment of water supply network in Tianjin, China

Yanxi CHEN,Zhiguang NIU,Jiaqi BAI,Yufei WANG

Journal Article

Decision Support System for emergency scheduling of raw water supply systems with multiple sources

Qi WANG, Shuming LIU, Wenjun LIU, Zoran KAPELAN, Dragan SAVIC

Journal Article

Energy supply for water electrolysis systems using wind and solar energy to produce hydrogen: a case

Mostafa REZAEI, Ali MOSTAFAEIPOUR, Mojtaba QOLIPOUR, Mozhgan MOMENI

Journal Article

Valveless pumping using a two-stage impedance pump

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

Journal Article

The “Tiangong” Chinese Space Station project

Yang HONG

Journal Article

Image analysis of soil failure on defective underground pipe due to cyclic water supply and drainage

Toshifumi MUKUNOKI, Naoko KUMANO, Jun OTANI

Journal Article

Study on Distribution Method of Auto-control Valves in Water Supply Network

Zhang Hongwei,Guo Yiping,Niu Zhiguang,Zhang Li

Journal Article

Evaluation and Recombination of Property Right Configuration for Urban Water Supply System

Xiao Wen,Ouyang Fangrui,Wang Xianjia

Journal Article

Comparison of shallow tunneling method with pile and rib method for construction of subway station in

Sina AMIRI; Ali Naghi DEHGHAN

Journal Article