Results 11 to 20 of about 2,966,278 (316)

Formulating surrogate pumping test data sets to assess aquifer hydraulic conductivity

Journal of Hydrology X, 2018
A hypothesis to estimate hydraulic conductivity from surrogate pumping tests formulated using routinely monitored pumping rates and hydraulic heads is tested. The data set of a surrogate pumping test contains only a few late-time drawdowns represented by
Kerang Sun
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Periodic pumping tests [PDF]

Geophysical Journal International, 2006
SUMMARY We performed pumping tests with a periodic succession of injection and production intervals in a field of three shallow boreholes penetrating a jointed sandstone formation. Tests were conducted at periods ranging from 10 to 5400 s and pumping rates between 5 and 20 l min−1.
Jörg Renner, Mareike Messar
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Freshwater-salt water interface dynamics during pumping tests

Acque Sotterranee, 2019
Freshwater-salt water interface (FSI) location is very important information for decision maker in managing coastal aquifer system, however, its temporal change have been hard to get using conventional method such as EC monitoring at one or several fixed
Yongcheol Kim, Heesung Yoon, Soo-Hyung Lee   +2 more
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Permeability coefficient tests in non-cohesive soils

Przegląd Naukowy Inżynieria i Kształtowanie Środowiska, 2020
The paper aims to comparison the permeability coefficient in non-cohesive soils by the method of test pumping and based on tests in a consolidometer. The tests were carried out on 18 types of non-cohesive soils with different fraction. Pumping tests were
Grzegorz Wrzesiński
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An Intelligent Mobile Gas Drainage Pumping Station

Meikuang Anquan, 2020
In this paper, an intelligent mobile gas pumping station is designed. By designing and installing the intelligent monitoring substation and water-softening device on the mobile gas drainage pumping station, the monitoring of various parameters in the ...
MENG Fanrui, ZHAO Yong, JING Yanbo, ZHAO Guoyong, SHAO Jirong, REN Zhichao
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Algorithm and Software Implementation of the Diagnostic System for the Technical Condition of Powerful Units [PDF]

E3S Web of Conferences, 2023
This article discusses the software implementation of the diagnostic system for auxiliary equipment of power plants (on the example of smoke exhausters). The developed program of diagnostics of auxiliary equipment of electric power plants is given on the
Toirov Olimjon, Khalikov Salikhdjan
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Ergodicity of pumping tests [PDF]

Water Resources Research, 2007
Standard interpretations of pumping tests in heterogeneous formations rely on effective representations of porous media, which replace spatially varying hydraulic properties with their constant counterparts averaged over the support volume of a test. Rigorous approaches for deriving representative (effective, apparent, upscaled, etc.) parameters employ
Xavier Sanchez‐Vila, Daniel M. Tartakovsky   +1 more
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Estimation of sustainable safe yield of wells using analytical and numerical models in the northern Wadi Araba Basin, southern Jordan

Acque Sotterranee
This study assessed the sustainable and safe yield of eight wells in the northern Wadi Araba Basin, southern Jordan, using both analytical-empirical methods and numerical groundwater modeling.
Ali R. El-Naqa
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Development and application of model test system for mud pumping in ballasted track subgrade

Yantu gongcheng xuebao, 2022
In order to study the mud pumping mechanism of ballasted track subgrade on the existing lines in China, a physical modelling system which can simulate the cyclic loading-wetting coupling process is developed. The model sample with a diameter of 500 mm is
HAN Bo-wen 1, 2, CAI Guo-qing 1, 2, LI Jian 1, 2, ZHANG Guo-guang 3, ZHAO Cheng-gang 2
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Pump and Valve Inservice Testing: How Pump and Valve Testing Evolved [PDF]

ASME/NRC 2017 13th Pump and Valve Symposium, 2017
The O&M Code was developed when it was decided to move Pump and Valve In-Service Testing Requirements from ASME Boiler and Pressure Vessel Code Section XI to a standalone Code. IST for Pumps was originally is ASME Section XI IWP and for Valves IWV. Safety and Relief Valves were a Power Test Code and not in the scope of the ASME Boiler and Pressure ...
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