Results 21 to 30 of about 3,721,948 (299)

Study on number of geothermal wells based on flowing water and transferring heat in rock mass

open access: yesCase Studies in Thermal Engineering, 2023
The scientific selection of the number of pumping wells is directly related to the geothermal exploitation efficiency. In this paper, a new method is proposed to study the influence of different number of pumping wells on the geothermal exploitation ...
Junyi Gao, Qipeng Shi
doaj   +1 more source

Analysis of pump stations operation mode and measures to improve them [PDF]

open access: yesE3S Web of Conferences, 2023
This article presents the data analysis of pumping stations controlled by the Pumping Stations and Energy Departments (PS&ED) of the Republic of Karakalpakstan.
Kodirov D. T.   +3 more
doaj   +1 more source

Effect of Axial Agitator Configuration (Up-Pumping, Down-Pumping, Reverse Rotation) on Flow Patterns Generated in Stirred Vessels [PDF]

open access: yes, 2001
Single phase turbulent flow in a tank stirred with two different axial impellers - a pitched blade turbine (PBT) and a Mixel TT (MTT)- has been studied using Laser Doppler Velocimetry. The effect of the agitator configuration, i.e.
Fletcher, David F.   +4 more
core   +1 more source

Effects of groundwater pumping on the sustainability of a mountain wetland complex, Yosemite National Park, California

open access: yesJournal of Hydrology: Regional Studies, 2015
Study Region: We analyzed the effects of groundwater pumping on a mountain wetland complex, Yosemite National Park, California, USA. Study Focus: Groundwater pumping from mountain meadows is common in many regions of the world.
David J. Cooper   +3 more
doaj   +1 more source

Optimizing regional irrigation water allocation for multi-stage pumping-water irrigation system based on multi-level optimization-coordination model

open access: yesJournal of Hydrology X, 2019
The optimal allocation and utilization of irrigation water are particularly significant but complex in multi-stage pumping-water irrigation systems which involve both water distribution processes and machine operation management.
Yao Jiang   +3 more
doaj   +1 more source

Experimental study on mechanism for pumping-induced land subsidence [PDF]

open access: yesProceedings of the International Association of Hydrological Sciences, 2020
Groundwater pumping can cause severe land subsidence, yet the mechanisms have not been completely clear. A laboratory physical model test was done to investigate the mechanism for pumping-induced land subsidence.
Y. Zhang   +5 more
doaj   +1 more source

Freshwater-salt water interface dynamics during pumping tests

open access: yesAcque 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   +2 more
doaj   +1 more source

Measurement of groundwater dewatering in excavations in Tianjin

open access: yesYantu gongcheng xuebao, 2019
Based on the characteristics of engineering geology and hydrogeological characteristics in Tianjin, multiple excavation dewatering projects are monitored comprehensively in the entire process.
DIAO Yu 1, 2, GAO Ze-dong 1, 2, ZHENG Gang 1, 2, CHU Zhen-xi 1, 2, GUO Yong-zhi 1, 2, JIA Zhen-yang 1, 2
doaj   +1 more source

Experimental Study on Drainage of Strata Water-Bearing and Permeability in Huangyuchuan Coal Mine

open access: yesMeikuang Anquan, 2020
The pumping test was carried out by arranging pumping holes in the ground of Huangyuchuan Mine to test the water inflow, permeability coefficient and influence radius of different hole positions, and to master the characteristics of water and ...
WU Hongtao, CHEN Jiangfeng, WANG Chongping, DOU Hao3
doaj   +1 more source

PERFORMACE EVALUATION OF SOLAR PHOTOVOLTAIC PUMP FOR OPERATING OF LANDSCAPE SYSTEM [PDF]

open access: yesArab Universities Journal of Agricultural Sciences, 2018
Most landscapes requires the water essentially, water pumping consumes a significant amount energy. The study carried out to evaluate the performance of a solar water pumping system for the purpose of operating landscape system.
B. Swidan, M. Mostafa
doaj   +1 more source

Home - About - Disclaimer - Privacy