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Investigation of solar PV performance under Doha weather using a customized measurement and monitoring system
Published 2016“…More specifically, we design an in-house system featuring a buck-boost converter enhanced with a maximum power point tracker (MPPT) serving as a PV load, sensors' system that collects climatic parameters including dust, wireless Radio, and a LabVIEW based monitoring and recording station. …”
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Quantification of pv power and economic losses due to soiling in Qatar
Published 2021“…Soiling losses of photovoltaic (PV) panels due to dust lead to a significant decrease in solar energy yield and result in economic losses; this hence poses critical challenges to the viability of PV in smart grid systems. …”
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The simultaneous impact of EV charging and PV inverter reactive power on the hosting distribution system's performance: A case study in kuwait
Published 2020“…The impact of EV integration for the case study results in two peaks, which show a 6.4% and 17% increase. Varying the inverter to the PV ratio from 1.1 to 2 decreases system losses by 34% to 41%. …”
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Study of the effects of dust, relative humidity, and temperature on solar PV performance in Doha: Comparison between monocrystalline and amorphous PVS
Published 2013“…It was estimated that 100 days of dust accumulation over monocrystalline PV panels, caused the efficiency to decrease by around 10%. …”
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Failure mode analysis for single-phase Multi-level qZSI interfacing PV system to utility grid
Published 2017“…Cascaded Multi-level inverter for synchronization of power generated from PV system to utility grid is reported in this paper. …”
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MODEL PREDICTIVE CONTROL STRATEGY FOR LEAKAGE CURRENT REDUCTION IN PHOTOVOLTAIC SYSTEMS: A STUDY ON PUC AND CSC INVERTER TOPOLOGIES
Published 2024“…This thesis focuses on studying a double-stage transformerless photovoltaic (PV) microinverter grid-connected system. …”
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Optimal Energy Dispatch Engine for PV-DG-ESS Hybrid Power Plants Considering Battery Degradation and Carbon Emissions
Published 2023“…The test results revealed a 9.2% and 3.5% decrease in daily costs compared to the heuristic and stochastic methods, respectively, and a 29.4% decrease in carbon emission costs.…”
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Long-term performance analysis and power prediction of PV technology in the State of Qatar
Published 2017“…For data collection, a wireless system has been developed to record critical parameters such as solar irradiance, relative humidity, ambient temperature, PV module temperature, dust, wind speed, and output PV power. …”
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Towards understanding the effects of climatic and environmental factors on solar PV performance in arid desert regions (Qatar) for various PV technologies
Published 2012“…It was estimated that 100 days of dust accumulation over mono-crystalline PV panels, caused the efficiency to decrease by around 10%. …”
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A Reverse MultipleChoice Based mLearning System
Published 2018“…In the current work, we present a reverse multiple-choice mobile learning system that is based on knowledge acquisition. …”
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Opportunities, challenges and trade-offs with decreasing avoidable food waste in the UK
Published 2021“…Stakeholder interrelations, regulatory and socio-economic aspects are discussed in relation to their influence on decreasing avoidable food waste. The main output from this work is a diagrammatic depiction of where challenges and trade-offs occur along the food supply chain, and how policy and socio-economic reforms are needed to maximise avoidable food waste prevention, and the surplus avoidable food redistribution in the food supply chain for social benefit.…”
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Effects of environmental and climatic conditions on PV efficiency in qatar
Published 2013“…It was estimated that 100 days of dust accumulation over Mono-crystalline PV panels, caused the efficiency to decrease by 10%. …”
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EV impact on the residential distribution network with smart PV inverters
Published 2020“…Varying the inverter to PV ratio for smart operation from (1.1) to (2) further decreases the system losses. …”
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Biocorrosion behavior of biodegradable nanocomposite fibers coated layer-by-layer on AM50 magnesium implant
Published 2016“…The corrosion performance of coated and uncoated coupon samples was investigated by means of electrochemical measurements. The results showed that the AJS 3D membrane fiber layers, particularly the hybrid membrane layers containing a small amount of nHA (3wt.%), induce a higher biocorrosion resistance and effectively decrease the initial degradation rate compared with the neat AM50 coupon samples. …”
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The mitochondrial-related effect of the 905 nm photobiomodulation therapy on 50B11 sensory neurons
Published 2023“…In this study, a possible molecular mechanism of the 905 nm PBMT (0.25 W/cm2; 3, 6, 12, and 18 J/cm2, 5 Hz) analgesic effect was tested on 50B11 cells, by investigating its impact on mitochondria. …”
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Modeling and control for new LLCL filter based grid-tied PV inverters with active power decoupling and active resonance damping capabilities
Published 2018“…This contradicts the goal of optimizing system's overall power density. Therefore, a novel LLCL filter for grid-connected applications is introduced that merges AC-Side and DC-Side volume minimization methods without additional power electronics devices. …”
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The impact of PV generation and load types on the impedance relays during both balanced and unbalanced faults
Published 2022“…When a single phase to ground fault occurs at the relay bus (load bus), the dynamic load decreases the relay impedance, and the PV plant increases it. …”
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