Results 121 to 130 of about 1,404,912 (251)

Numerical and experimental study of upstream and downstream flows in pumping stations with large-deflection-angle lateral intake

Guan'gai paishui xuebao
【Background and Objective】Pumping stations with large-deflection-angle lateral intakes often exhibit complex hydraulic behaviors, such as uneven velocity distribution and local recirculation, affecting operational stability and efficiency.
WANG Zhengqian, WANG Ruihai, LI Xu, CHEN Haifeng, FENG Shuyun, HE Huaijie   +5 more
doaj   +1 more source

Flood at pumping station

Flooded pumping station on Main St., Memphis. -- Text on front: F6 -- Sewer Pumping Sta. N.

core  

Performance assessment of a potential underground thermal storage facility: Case study of the closed mine Prosper‐Haniel in the Ruhr coal mining area in Germany

Deep Underground Science and Engineering, EarlyView.
This study demonstrates the feasibility of an underground closed‐loop thermal storage facility at a post‐mining site, intended for seasonal heat energy storage. Its principal design shows water flow directions in winter and summer (1, 2), heat pumps (3), an upper water reservoir (4), and connecting pipes (5).
Dmytro Rudakov, Oleksandr Inkin
wiley   +1 more source

Carbon emission assessment of tunnel infrastructures: From construction to operation

Deep Underground Science and Engineering, EarlyView.
This study develops a lifecycle carbon accounting framework for tunnel infrastructures, covering design, construction, operation, maintenance, and dismantling. Applied to a subsea tunnel case, the framework reveals the carbon emission distribution among four typical tunnel types and highlights potential carbon offset methods for low‐carbon tunnel ...
Luyuan Long, Wout Broere, Xuehui Zhang, Tian Xia, Richard de Nijs   +4 more
wiley   +1 more source

Optimization of Flow Characteristics and Diffusion Angles of Forward Inflow Forebay of Pumping Station

Renmin Zhujiang
To address issues arising from chaotic water flow due to unreasonable pumping station operation and insufficient forebay design, this study took the Yanhuangding pumping station as a typical case.
LI Yun, MA Guomin, LI Chaochao, LI Mingyang, GU Jingchao   +4 more
doaj   +2 more sources

Optimal Pumping Flow Algorithm to Improve Pumping Station Operations in Irrigation Systems

Agriculture
In Spain, irrigated agriculture is the most water-intensive sector, consuming around of 80% of water resources. Moreover, irrigation water distribution systems are the infrastructure by which one-third of water resource losses take place.
Enrique Bonet, María Teresa Yubero
doaj   +1 more source

Reusing depleted oil and gas wells for geothermal energy: Feasibility, challenges, and a decision‐making framework for sustainable conversion

Deep Underground Science and Engineering, EarlyView.
The graphical abstract presents a structured decision‐support framework for assessing the feasibility of converting depleted oil and gas wells into geothermal energy systems. The left panel illustrates a comprehensive, multi‐stage decision‐making framework progressing from prefeasibility screening and technical–economic analysis to policy alignment ...
Karolina Bieryt, Yu Pan, Heinz Konietzky, Fei Wang   +3 more
wiley   +1 more source

Assessing downstream passage of European silver eel at a tidal pumping station: acceleration as a proxy for eel activity

Movement Ecology
Background To complete their lifecycle, diadromous fish often need to pass anthropogenic barriers in regulated rivers and estuaries (e.g., pumping stations, weirs, hydropower facilities). The safe and timely passage of the endangered catadromous European
I. van der Knaap, H. Kuipers, J. van Eerbeek, P.P. Schollema, J.B.J. Huisman   +4 more
doaj   +1 more source

Water Electrolysis Technologies for Extraterrestrial Water Resource Conversion

EcoEnergy, EarlyView.
This paper reviews four water electrolysis technologies for extraterrestrial water conversion: alkaline water electrolysis, proton exchange membrane water electrolysis, solid oxide water electrolysis, and anion exchange membrane water electrolysis. It elaborates on their mechanisms, components, and integration, highlighting challenges such as water ...
Yawen Jiang, Yuan Zhao, Lin Zu, Lili Ling, Yongwei Zhao, Jun Di, Pin Song   +6 more
wiley   +1 more source

Optimization of the operating cost of sewage conveyance

Kuwait Journal of Science, 2018
Accelerated urbanization places extraordinary demands on sewer networks; thus optimization research to improve the design of these systems has practical significance. In this paper, a subsystem nonlinear programming model is developed to optimize pumping
J. Tian, J. Cheng, Y. Gong
doaj