Results 21 to 30 of about 566,663 (312)

A flexible hydrogen-electricity coproduction system through the decoupling of units with different dynamic characteristics

open access: yesCarbon Neutrality, 2023
Regarding the carbon neutrality target, the proportion of renewable energy in global energy sources is predicted to increase to 50% by 2050, and the increment in penetration requires fossil fuel power plants to play a key role in grid peak regulation ...
Chaowei Wang, Yanbing Wei, Lin Gao
doaj   +1 more source

Selection of Input Factors and Comparison of Machine Learning Models for Prediction of Dissolved Oxygen in Gyeongan Stream

open access: yes대한환경공학회지, 2021
Objectives : In this study, we select input factors for machine learning models to predict dissolved oxygen (DO) in Gyeongan Stream and compare results of performance evaluation indicators to find the optimal model.
Min Ji Kim   +3 more
doaj   +1 more source

Energy systems integration as research practice [PDF]

open access: yesTechnology Analysis & Strategic Management, 2021
This article adopts frameworks and methods from Science and Technology Studies for examining Energy Systems Integration (ESI). ESI, the integrated operation and planning of multiple energy supplies and demands, can contribute to improvements in energy reliability, security and flexibility, and therefore facilitate a transition to a low carbon economy ...
Antti Silvast   +2 more
openaire   +3 more sources

Design and Verification of the LQR Controller Based on Fuzzy Logic for Large Wind Turbine

open access: yesEnergies, 2021
In this study, a linear quadratic regulator based on the fuzzy logic (LQRF) control algorithm for a variable-speed variable-pitch wind turbine was designed.
Taesu Jeon, Insu Paek
doaj   +1 more source

Design and Validation of Demanded Power Point Tracking Control Algorithm for MIMO Controllers in Wind Turbines

open access: yesEnergies, 2021
In this study, a demanded power point tracking (DPPT) control algorithm was designed for the application of multiple-input multiple-output (MIMO) modern control algorithms.
Taesu Jeon   +3 more
doaj   +1 more source

Data-Driven Degradation Modeling and SOH Prediction of Li-Ion Batteries

open access: yesEnergies, 2022
Electrified vehicles (EV) and marine vessels represent promising clean transportation solutions to reduce or eliminate petroleum fuel use, greenhouse gas emissions and air pollutants.
Bo Pang, Li Chen, Zuomin Dong
doaj   +1 more source

Oxidative Treatments of Pesticides in Rainwater Runoff by HOCl, O3, and O3/H2O2: Effects of pH, Humic Acids and Inorganic Matters

open access: yesSeparations, 2021
This study systematically investigated the oxidative treatment of five selected pesticides, alachlor (ALA), carbendazim (CAR), diuron (DIU), pyrimethanil (PYR), and tebuconazole (TEB), by comparing their relative reactivities as a function of three ...
Duuriimaa Ochir   +5 more
doaj   +1 more source

Review of the development of the probabilistic damage tolerance assessment of life-limited parts in compliance with the airworthiness regulations

open access: yesPropulsion and Power Research, 2023
Probabilistic damage tolerance is a critical method to understand and communicate risk and safety. This paper reviews recent research on the probabilistic damage tolerance design for life-limited parts.
Shuiting Ding   +4 more
doaj   +1 more source

High technical and temporal resolution integrated energy system modelling of industrial decarbonisation [PDF]

open access: yes, 2022
Owing to the complexity of the sector, industrial activities are often represented with limited technological resolution in integrated energy system models.
Floris, Taminau   +10 more
core   +1 more source

Efficient Numerical Integration Algorithm of Probabilistic Risk Assessment for Aero-Engine Rotors Considering In-Service Inspection Uncertainties

open access: yesAerospace, 2022
Numerical integration methods have the characteristics of high efficiency and precision, making them attractive for aero-engine probabilistic risk assessment and design optimization of an inspection plan.
Guo Li   +4 more
doaj   +1 more source

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