Results 31 to 40 of about 8,289,953 (304)
Maximum power point tracking for variable-speed fixed-pitch small wind turbines [PDF]
, 2009 Variable-speed, fixed-pitch wind turbines are required to optimize power output performance without the aerodynamic controls. A wind turbine generator system is operated such that the optimum points of wind rotor curve and electrical generator curve ...
Jovanovic, Milutin +7 more
core +1 more source
Numerical study for the improvement of performance of Savonius wind turbine having elliptical blades [PDF]
E3S Web of ConferencesThe S-rotor wind turbine operates based on drag, resulting in lower power coefficients. Furthermore, a multitude of geometric and aerodynamic factors have been meticulously crafted to enhance the overall efficiency.
Debnath Pinku, Debbarma Ronald
doaj +1 more source
Energies, 2020 We carried out a wind tunnel experiment to examine the power generation efficiency of a stand-alone miniature wind turbine and its wake characteristics at different tip speed ratios (TSRs) under the same mean inflow velocity.
Yu-Ting Wu, Chang-Yu Lin, Che-Ming Hsu
doaj +1 more source
Influence of Temperature on Electrical Characteristics of Different Photovoltaic Module Technologies
International Journal of Renewable Energy Development, 2018 The aim of this study was to analyse the influence of temperature on electrical characteristics of crystalline and amorphous photovoltaic (PV) modules in outdoor conditions at Nawabshah. The experimental setup was made over
Abdul Rehman Jatoi +2 more
doaj +1 more source
Power Supply Design Considerations for 400Hz Aircraft Applications
, 2020 In this study a 5kW power supply for aircraft applications has been designed. Boost type power factor correction topology Delta rectifier complies with military standards of conducted emissions and is selected as a front-end rectifier for 400 Hz mains ...
Kyyrä, Jorma +2 more
core +1 more source
Battery Energy Storage System for PV Output Power Leveling [PDF]
, 2014 Fluctuating photovoltaic (PV) output power reduces the reliability in power system when there is a massive penetration of PV generators. Energy storage systems that are connected to the PV generators using bidirectional isolated dc-dc converter can be ...
Taghizadeh, S +7 more
core +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Pediatric intramedullary low‐grade gliomas (PIMLGGs) are rare neoplasms that present unique clinical and management challenges. Although surgery remains the primary tool for tissue diagnosis and decompression, complete gross‐total resection is frequently unfeasible due to the infiltrative nature of these lesions.
Olga M. Sergeenko +5 more
wiley +1 more source
A Compact Output Power Combiner for Broadband Doherty Power Amplifiers
, 2019 A novel compact output power combiner for broadband Doherty Power Amplifiers is proposed in this paper. The proposed output power combiner avoids the use of quarter-wave impedance transformers as they are sizable and work over narrow bandwidths. Instead,
Mona Zaghloul, Ali Darwish, Ken McKnight
core +1 more source
Investigation on Wake Evolution Dynamics for Various Floating Offshore Wind Turbine Platforms
EnergiesThe study investigates the impact of motions of floating offshore wind turbine platforms on wake evolution and overall wind farm performance, employing large-eddy simulation (LES) and dynamic wake modeling method.
Yifan Gao, Jiahao Chen
doaj +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Adult survivors of childhood acute lymphoblastic leukemia (ALL) are at risk of reduced exercise capacity, decreased physical activity levels, persistent fatigue, and neurocognitive deficits. The aim was to investigate exercise capacity and physical activity levels of adult survivors of childhood ALL and their associations with ...
Laura Jess +5 more
wiley +1 more source