Search results for " Electrical connection"

showing 2 items of 2 documents

PV Reconfiguration Systems: a Technical and Economic Study

2017

Dynamical electrical array reconfiguration strategies for grid-connected PV systems have been proposed as solution to improve energy production due to the mismatch effect of PV plants during partial shading conditions. Strategies are based on the use of dynamic connections between PV panels given by the employment of switches that allow for each panel the series, parallel or exclusion connections, physically changing the electrical connections between the related PV modules, consequentially modifying the layout of the plant. Usually the cost of the dynamic matrix is not taken into account. This novel work evaluates the economic advantages obtained by the use of reconfiguration strategies in…

Electrical connectionPhotovoltaic; Renewable energy sources; Economic advantages; Electrical connection; Energy productions; European Countries; Grid connected PV system; Photovoltaic; Reconfiguration system; Renewable energy sourceRenewable energy sourceGrid connected PV systemEconomic advantageSettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciSettore ING-IND/31 - ElettrotecnicaEnergy productionEuropean Countrielcsh:Electrical engineering. Electronics. Nuclear engineeringrenewable energy sourcesSettore ING-INF/07 - Misure Elettriche E ElettronichePhotovoltaiclcsh:TK1-9971Reconfiguration systemJournal of Electrical Systems
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Development of a module of stacks of air-breathing microbial fuel cells to light-up a strip of LEDs

2018

Abstract This work focuses on scaling-up of the microbial fuel cells technology according to the principle of miniaturization and multiplication. Seven stacks of 16 mini-MFCs (electrodic area of 0.866 cm2) were built up leading to a big module of 112 MFCs. The electrical connection among the MFCs in the stacks and among the stacks into the modules was optimized in order to implement this technology. Results show that 1 MFC generates 1.22 mW while the optimization of the electric connection in order to achieve the maximum power results in 6.62 mW compared to the theoretical 182 mW, indicating the existence of large energy losses in the system. However, to light a LED there is not a threshold…

Microbial fuel cellMaterials scienceMaximum power principlebusiness.industryGeneral Chemical EngineeringCombustiblesElectrical engineering02 engineering and technology010501 environmental sciences021001 nanoscience & nanotechnology01 natural sciencesElectrical connectionPower (physics)law.inventionElectroquímicaStack (abstract data type)lawElectrochemistryMiniaturizationMicrobial fuel cell Miniaturization Multiplication Stack Electrical connection LED0210 nano-technologybusiness0105 earth and related environmental sciencesLight-emitting diodeVoltage
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