Results 91 to 100 of about 180,287 (259)

Vibromixers as an Alternative to Stirred Tanks: Design, Performance Characteristics, and Applications

open access: yesChemical Engineering &Technology, Volume 49, Issue 1, January 2026.
This review presents the state‐of‐the‐art knowledge on vibromixers, which are alternative mixing systems to conventional rotating agitators and mostly used in the biotechnology sector. It critically surveys the working principles of different vibromixer types and their operating conditions, the designs and key geometrical parameters, hydrodynamics and ...
Muhammad Muhammad Gimba   +2 more
wiley   +1 more source

Nonlinear State Space Model of a Hydraulic Wind Power Transfer [PDF]

open access: yes, 2013
poster abstractGearless hydraulic wind power systems are considered as nonlinear models because of some discrete elements such as check valves, proportional and directional valves, and leakage factor of hydraulic pumps and motors.
Deldar, Majid, Vaezi, Masoud
core  

Synchronous Operation Stability of Three‐Stage Hydropower Stations Based on Feedback Regulation of Regulating Reservoir Water Levels

open access: yesEnergy Science &Engineering, Volume 14, Issue 1, Page 300-321, January 2026.
Layout of the synchronous operation of THSRRs. ABSTRACT This paper focuses on the stability of synchronous operation (SSO) of three‐stage hydropower stations cascaded by regulating reservoirs (THSRRs). Firstly, the model of synchronous operation of THSRRs is established. According to the model, the Hopf bifurcation theory is utilized to analyze the SSO
Min Huang, Wencheng Guo
wiley   +1 more source

Energy Landscape in Iraq: Current Status, Research Review, and Policy Insights

open access: yesEnergy Science &Engineering, Volume 14, Issue 1, Page 625-678, January 2026.
Renewable energy currently contributes a small fraction to Iraq's electricity mix, with 3.39% from hydropower and 0.059% from solar, while thermal power dominates at 96.6%. Significant untapped potential exists across solar, wind, biomass, geothermal, wave, and blue energy, highlighting opportunities for a low‐carbon, technoeconomically viable energy ...
Ihab Jabbar Al‐Rikabi   +5 more
wiley   +1 more source

Mod-2 wind turbine system development. Volume 1: Executive summary [PDF]

open access: yes
The development of the MOD-2 wind turbine through acceptance testing and initial operational evaluation is documented. Pitch control hydraulic system, yaw control system, drive train, electrical power station, control system, operations and maintenance ...

core   +1 more source

WTG Energy Systems' MP1-200 200 kilowatt wind turbine generator [PDF]

open access: yes, 1979
The preliminary design criteria of the MP1-200 wind turbine are given along with a brief description of the wind turbine generator. Performance and operational experience and cost factors are included.
Spaulding, A. P., Jr.
core   +1 more source

Enhancing Efficiency in Double‐Pipe Heat Exchangers: A Detailed Review of NanoFluids and Their Impact on Thermal Performance

open access: yesHeat Transfer, Volume 55, Issue 1, Page 212-240, January 2026.
ABSTRACT This study reviews recent advances in using nanofluids to enhance double‐pipe heat exchanger (DPHE) efficiency. The review examines several types of nanofluids, that is, water‐based graphene oxide and CuO–water nanofluids, assessing their effectiveness under different operating conditions, including inlet temperature and nanoparticle volume ...
Farhan Lafta Rashid   +8 more
wiley   +1 more source

Long-term energy capture and the effects of optimizing wind turbine operating strategies [PDF]

open access: yes, 1981
Methods of increasing energy capture without affecting the turbine design were investigated. The emphasis was on optimizing the wind turbine operating strategy.
Formica, W. J., Miller, A. H.
core   +1 more source

Impacts of the renewable energy transition on global plant diversity: A review

open access: yesPLANTS, PEOPLE, PLANET, Volume 8, Issue 1, Page 87-115, January 2026.
People and nature need a renewable energy transition to help address the growing, and catastrophic, effects of climate change. A sustainable energy transition involves rigorously examining the potential impacts on nature – including plant life – and creating pathways for impact mitigation that strike a clear balance between energy production and ...
Rachael V. Gallagher   +7 more
wiley   +1 more source

Numerical Simulation of a Wind Turbine with a Hydraulic Transmission System

open access: yesEnergy Procedia, 2014
AbstractThis paper describes numerical modeling and analysis of wind turbines with high-pressure hydraulic transmission machinery. A dynamic model of the hydraulic system is developed and coupled with the aeroelastic code HAWC2 through external Dynamic Link Library.
Jiang, Zhiyu   +3 more
openaire   +1 more source

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