Results 1 to 10 of about 25,021 (168)

Photovoltaic pumping tests: A novel supervision method for photovoltaic water pumping systems [PDF]

open access: yesHeliyon
Water pumps powered by photovoltaic energy, often named ‘photovoltaic water pumping systems’ (PVWPS), offer a promising solution for improving water access in developing regions.
Ange Sahuquet   +8 more
doaj   +2 more sources

Application of the reliability assessment results for pumping stations’s modernization [PDF]

open access: yesE3S Web of Conferences, 2023
Work on the modernization of irrigation pumping stations in our Republic has a great relevance. Technical modernization and reconstruction of pumping stations require a reliable scientifically based methodological approach. Each pumping station regularly
Kan Eduard   +4 more
doaj   +1 more source

Strata Responses Due to Pumping from Deep Confined Aquifers of Multi-Aquifer-Aquitard System in Shanghai

open access: yesShanghai Jiaotong Daxue xuebao, 2023
When pumping in confined aquifers, vertical leakage could be found in the multi-aquifer system in soft deposits, and the responses of groundwater flow and strata deformation are complicated.
PENG Chenxin, LI Mingguang, ZHEN Liang, LI Yaoliang, ZHANG Zhebin
doaj   +1 more source

Spatial averaging implied in aquifer test interpretation: The meaning of estimated hydraulic properties

open access: yesFrontiers in Earth Science, 2023
Processing of aquifer test drawdowns to obtain estimates of transmissivity, and sometimes storativity, is an integral part of hydrogeological site investigations.
Neil Manewell, John Doherty, Phil Hayes
doaj   +1 more source

Mixed-well model of the relation between drawdown and water inflow in a pumping well with variable-diameter

open access: yes地质科技通报, 2023
Objective Pumping tests are an important method for determining the hydrogeological parameters of aquifers and evaluating groundwater resources. For the analysis of single-well pumping tests, existing models assume that the well diameter remains constant
Yueming Qi   +8 more
doaj   +1 more source

Software for Evaluating Pumping Tests on Real Wells

open access: yesApplied Sciences, 2021
As the climate is changing, greater exploitation of groundwater reserves is becoming evident; however, this would have been apparent even without climate change. Therefore, increasing emphasis is given to maintaining well functionality.
Václav Ficaj, Pavel Pech, Daniel Kahuda
doaj   +1 more source

Technical note: Analytical drawdown solution for steady-state pumping tests in two-dimensional isotropic heterogeneous aquifers [PDF]

open access: yesHydrology and Earth System Sciences, 2016
A new method is presented which allows interpreting steady-state pumping tests in heterogeneous isotropic transmissivity fields. In contrast to mean uniform flow, pumping test drawdowns in heterogeneous media cannot be described by a single effective or ...
A. Zech, S. Attinger
doaj   +1 more source

Toward coupling of groundwater drawdown and pumping time in a constant discharge

open access: yesApplied Water Science, 2022
Groundwater is considered an essential water resource in arid and semi-arid regions such as Iran. This study used a copula-based approach to analyze the joint frequency of groundwater level and the duration of groundwater pumping with a constant ...
Mehdi Dastourani   +1 more
doaj   +1 more source

Hydrogeological characterization and parameters estimation of the aquifer close to the Adige River (Verona, Italy) for the design of deep excavations

open access: yesAcque Sotterranee, 2019
In the framework of the final design of a new hydroelectric plant close to the existing dam on the Adige River in the municipality of San Giovanni Lupatoto (VR, Italy), the design of deep excavations in loose sediments below groundwater level, and the ...
Valentina Vincenzi, Michele Sapigni
doaj   +1 more source

Optimization of Energy Consumption in the Pumping Station Supplying Two Zones of the Water Supply System

open access: yesEnergies, 2022
Water supply pumping stations are among the main energy-consuming elements in the water supply system. The energy optimization of a pumping station can significantly affect the energy consumption of a water utility.
Martyna Świętochowska   +1 more
doaj   +1 more source

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