Results 81 to 90 of about 805,835 (276)

Review on the performance of crossflow hydraulic turbine for local power generation: Fundamentals and applications

open access: yesNext Energy
This article reviews theoretical, numerical, and experimental studies on the performance of crossflow hydraulic turbine for local renewable power generation from rivers and open channels.
Nobuyuki Fujisawa   +2 more
doaj   +1 more source

Space shuttle orbiter auxiliary power unit development challenges [PDF]

open access: yes, 1985
When the flying spacecraft was approved for development, a power unit for the hydraulic system had to be developed. Unlike other systems on the orbiter, there was no precedent in earlier spacecraft for a hydraulic system nor for the power unit to drive ...
Lance, R., Weary, D.
core   +1 more source

Cascade Optimization of an Axial-Flow Hydraulic Turbine Type Propeller by a Genetic Algorithm

open access: yesInternational Journal of Technology, 2019
This study proposes the use of the genetic algorithm (GA) method in hydraulic turbine optimization for renewable energy applications. The algorithm is used to optimize the performance of a two-dimensional hydrofoil cascade for an axial-flow hydraulic ...
Q. M. B. Soesanto   +3 more
semanticscholar   +1 more source

A Call to Industry: Unearthing Synergies in Subsurface Storage Technologies

open access: yesGreenhouse Gases: Science and Technology, EarlyView.
ABSTRACT Subsurface storage technologies (SSTs), including geological CO2 sequestration, underground hydrogen storage, compressed‑air energy storage and thermal energy storage, are emerging as a scalable route for industry to achieve the terawatt‑hour storage flexibility and permanent carbon removal that evolving energy systems demand.
Julien Mouli‐Castillo   +2 more
wiley   +1 more source

Development and Application of Turbine Rotary Guide Shoe

open access: yesShiyou jixie, 2023
The existing completion string running tools in China are unsatisfactory in running casings to the designated depth in horizontal sections and also have the problems of excessive power consumption and possible damage to the casings to induce well ...
Hou Naihe
doaj  

DETERMINATION OF TURBINE EFFICIENCY FOR SMALL HYDRO POWER PLANTS [PDF]

open access: yesJournal of Sustainable Energy, 2020
In this paper, authors briefly present the methods for determining the efficiency/performance of a hydraulic turbine, as well as the purpose, the necessity of applying in situ determination methods of the efficiency of hydraulic turbines from a ...
PURECE. C., CORLAN L., PLEŞCA V.
doaj  

Review of Water Supply, Treatment and Distribution: Overcoming Challenges for Sustainable Management

open access: yesWater and Environment Journal, EarlyView.
ABSTRACT Water management faces increasing challenges driven by population growth, accelerated urbanization and climate change, demanding integrated and sustainable approaches to ensure the preservation of water resources. Water scarcity and rising demand intensify the vulnerability of various regions, threatening both water supply and environmental ...
André Linneo Tocchetto   +5 more
wiley   +1 more source

Study on the Performance of Hydraulic Reduction Turbine by Varying the Blade Number

open access: yesShiyou jixie, 2017
The idle speed and the working speed of the turbo-shaft could be greatly reduced by incorporating a certain number of hydraulic reduction turbines into the turbo-drill.With the NUMECA software,the three-dimensional stator and rotor model with different ...
Tan Chunfei   +4 more
doaj  

Comparative Numerical Studies for the Flow Energy Dissipation Features in a Vertical Two‐Stage Centrifugal Pump in Pump and Turbine Conditions

open access: yesEnergy Science &Engineering, Volume 14, Issue 2, Page 764-779, February 2026.
Based on entropy theory, this study presents a comparative numerical analysis of the flow energy dissipation (FED) in a VTSP under two distinct operating conditions: pump condition and turbine condition, both characterized by relatively high hydraulic efficiencies of 88.9% and 87.4%, respectively. In pump condition, the highest FED production occurs in
S. Liu   +5 more
wiley   +1 more source

Including Lifetime Hydraulic Turbine Cost into Short-Term Hybrid Scheduling of Hydro and Solar

open access: yesEnergies
In traditional short-term hydropower scheduling problems, which usually determine the optimal power generation schedules within one week, the off-design zone of a hydraulic turbine is modeled as a forbidden zone due to the significantly increased risk of
Jiehong Kong   +2 more
doaj   +1 more source

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