Results 21 to 30 of about 41,966 (236)

Photovoltaic Module Degradation Forecast Models for Onshore and Offshore Floating Systems

Energies, 2023
The degradation trend of photovoltaic modules depends on the technology, manufacturing techniques and climatic conditions of the site where they are installed.
Gaetano Mannino, Giuseppe Marco Tina, Mario Cacciato, Leonardo Merlo, Alessio Vincenzo Cucuzza, Fabrizio Bizzarri, Andrea Canino   +6 more
doaj   +1 more source

Retracted: Can the chemical industry solve the climate change?On the role of human energy production, renewable energies, and the potential of chemistry as a solution provider

Chemie Ingenieur Technik, EarlyView., 2023
Let us consider an alternative perspective on climate change: The sum of solar radiation and heat generated by human activity result in a net energy input of 1.96 times that of the Sun on the Earth's surface. The expanding global population is expected to exacerbate this issue. Potential solutions are proposed, including replacement and heat recycling.
Martin Bertau, Gerald Steiner
wiley   +1 more source

Scaling Challenges for Conical Plain Bearings as Wind Turbine Main Bearings

Wind, 2023
Wind energy is an important renewable energy source. Rotor main bearings are critical components of wind turbines since a faulty main bearing leads to downtime and high repair costs. Operational expenditures amount to 32% of wind energy costs. The use of
Jan Euler, Georg Jacobs, Amin Loriemi, Timm Jakobs, Amadeus Rolink, Julian Röder   +5 more
doaj   +1 more source

Assessing Obukhov Length and Friction Velocity from Floating Lidar Observations: A Data Screening and Sensitivity Computation Approach

Remote Sensing, 2022
This work presents a parametric-solver algorithm for estimating atmospheric stability and friction velocity from floating Doppler wind lidar (FDWL) observations close to the mast of IJmuiden in the North Sea.
Marcos Paulo Araújo da Silva, Francesc Rocadenbosch, Joan Farré-Guarné, Andreu Salcedo-Bosch, Daniel González-Marco, Alfredo Peña   +5 more
doaj   +1 more source

Wind Retrieval from Constellations of Small SAR Satellites: Potential for Offshore Wind Resource Assessment

Energies, 2023
The planning of offshore wind energy projects requires wind observations over long periods for the establishment of wind speed distributions. In the marine environment, high-quality in situ observations are sparse and restricted to point locations ...
Merete Badger, Aito Fujita, Krzysztof Orzel, Daniel Hatfield, Mark Kelly   +4 more
doaj   +1 more source

Estimation of the Motion-Induced Horizontal-Wind-Speed Standard Deviation in an Offshore Doppler Lidar

Remote Sensing, 2018
This work presents a new methodology to estimate the motion-induced standard deviation and related turbulence intensity on the retrieved horizontal wind speed by means of the velocity-azimuth-display algorithm applied to the conical scanning pattern of a
Miguel A. Gutiérrez-Antuñano, Jordi Tiana-Alsina, Andreu Salcedo, Francesc Rocadenbosch   +3 more
doaj   +1 more source

Determining the Optimal Number of Pistons for Offshore Digital Winch Drives

Energies, 2023
In offshore winch drive applications, determining the required number of pistons in digital displacement motors is critical for minimizing torque ripples.
Thomas Farsakoglou, Henrik C. Pedersen, Morten K. Ebbesen, Torben O. Andersen   +3 more
doaj   +1 more source

Influence of Model Simplifications Excitation Force in Surge for a Floating Foundation for Offshore Wind Turbines

Energies, 2015
As offshore wind turbines move towards deeper and more distant sites, the concept of floating foundations is a potential technically and economically attractive alternative to the traditional fixed foundations.
Morten Thøtt Andersen, Dennis Hindhede, Jimmy Lauridsen   +2 more
doaj   +1 more source

Multi-Phase Flow Metering in Offshore Oil and Gas Transportation Pipelines: Trends and Perspectives

Sensors, 2019
Multi-phase flow meters are of huge importance to the offshore oil and gas industry. Unreliable measurements can lead to many disadvantages and even wrong decision-making.
Lærke Skov Hansen, Simon Pedersen, Petar Durdevic   +2 more
doaj   +1 more source

Optimal Maintenance Management of Offshore Wind Farms

Energies, 2016
Nowadays offshore wind energy is the renewable energy source with the highest growth. Offshore wind farms are composed of large and complex wind turbines, requiring a high level of reliability, availability, maintainability and safety (RAMS).
Alberto Pliego Marugán, Fausto Pedro García Márquez, Jesús María Pinar Pérez   +2 more
doaj   +1 more source