Results 131 to 140 of about 662,246 (360)

A Full AC Time‐Series Analysis of Photovoltaic Hosting Capacity in Niger's Grid

open access: yesEnergy Science &Engineering, EarlyView.
Methodological framework for PV hosting capacity assessment. ABSTRACT The integration of solar photovoltaic (PV) systems into sub‐Saharan African distribution grids presents a transformative opportunity to enhance energy access and sustainability. However, accurately quantifying the hosting capacity (HC), the maximum PV power that can be accommodated ...
Hamza Abarchi Halarou   +5 more
wiley   +1 more source

Os impactos do refúgio para as crianças e adolescentes: a Crise dos Refugiados do Século XXI [PDF]

open access: yes, 2018
Artigo apresentado como trabalho de conclusão de curso na Pós-Graduação (especialização) em Relações Internacionais Contemporâneas da Universidade Federal da Integração Latino Americana (UNILA)O refúgio é o movimento utilizado pelo ser humano para se ...
Scussel, Barbara Diesel
core  

Optimization of Energy Efficiency in Photovoltaic Water Pumping Systems Using Neural Networks

open access: yesEnergy Science &Engineering, EarlyView.
This study investigates an optimal control strategy for a photovoltaic (PV) water pumping system aimed at improving efficiency and autonomy in off‐grid applications. The system uses an induction motor with direct torque control and compares three maximum power point tracking (MPPT) techniques: neural network–based MPPT, Incremental Conductance (IC ...
Sihem Ghoudelbourk   +3 more
wiley   +1 more source

Computer simulation of the heavy-duty turbo-compounded diesel cycle for studies of engine efficiency and performance [PDF]

open access: yes
Reductions in heat loss at appropriate points in the diesel engine which result in substantially increased exhaust enthalpy were shown. The concepts for this increased enthalpy are the turbocharged, turbocompounded diesel engine cycle.
Assanis, D. N.   +3 more
core   +1 more source

Modeling and Experimental Study of a Dual‐Receiver Parabolic Solar Concentrator for Direct Electricity Generation and Thermal Storage for Isolated Sites

open access: yesEnergy Science &Engineering, EarlyView.
Approximately 64% of the population in sub‐Saharan Africa lacks access to electricity, despite the region's high solar potential, making concentrated solar power a promising solution for decentralized and sustainable energy supply. This study presents the design, construction, and testing of a parabolic solar concentrator with two focal‐point receivers
Sani Dan Nomao Harouna   +6 more
wiley   +1 more source

Single iron redox sites boost Methanol-SCR at low temperature

open access: yesNature Communications
Selective catalytic reduction of NOx to N2 by methanol as a reducing agent presents a prospective solution for the removal of NOx from the exhaust of methanol engines and the coal-fired power plant, but it confronts the problem of insufficient deNOx ...
Han Sun   +14 more
doaj   +1 more source

Common Rail Injector Operation Model and Its Validation

open access: yesEnergies
The aim of this study was to develop and subsequently validate a simulation model of a Common Rail (CR) system injector. The study includes a description of simulation and experimental tests conducted under various injector operating conditions ...
Karol Dębowski, Mirosław Karczewski
doaj   +1 more source

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