Prospect of Green Hydrogen Generation from Hybrid Renewable Energy Sources: A Review

Energies, Journal Year: 2023, Volume and Issue: 16(3), P. 1556 - 1556

Published: Feb. 3, 2023

Hydrogen is one of the prospective clean energies that could potentially address two pressing areas global concern, namely energy crises and environmental issues. Nowadays, fossil-based technologies are widely used to produce hydrogen release higher greenhouse gas emissions during process. Decarbonizing planet has been major goals in recent decades. To achieve this goal, it necessary find clean, sustainable, reliable production with low costs zero emissions. Therefore, study aims analyse generation from solar wind sources observe broad prospects hybrid renewable producing green hydrogen. The mainly focuses on critical assessment solar, wind, hybrid-powered electrolysis Furthermore, key challenges opportunities associated commercial-scale deployment addressed. Finally, potential applications their scopes discussed important barriers overall commercial development solar-wind-based systems. found appears be best candidate employed for multiple purposes, blending roles fuel carrier storage modality. Further studies recommended technical sustainable solutions overcome current issues identified study.

Language: Английский

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Biodiesel implementation in Indonesia: Experiences and future perspectives

Renewable and Sustainable Energy Reviews, Journal Year: 2023, Volume and Issue: 189, P. 113911 - 113911

Published: Oct. 31, 2023

Indonesia leads the world in biodiesel usage, with B35 (a mixture of 35 % and 65 diesel fuel) as its nationwide standard. The success program is primarily influenced by factors such encompassing supply, demand, regulatory frameworks, economic considerations, environmental impact. This comprehensive study delves into Indonesia's program, drawing insights from practical experiences recent research findings. Additionally, it puts recommendations aimed at ensuring long-term sustainability program. economical feasibility mixed fuel (Bxx) depends on scheme formula for determining Biodiesel Market Index Price Indonesia. Exploiting emission advantage within "polluter pays" principle could potentially position a compelling alternative to conventional fuel. discussion focuses establishment carbon tax internalization external cost using part energy policy. In summary, this review provides reference other countries that are either initial stage starting or considering implementation utilization their identifies existing gaps further development sustainable fuels.

Language: Английский

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Effects of ASR on combustion performance, GHG emissions and economic efficiency of ammonia/biodiesel dual-fuel low-carbon engine

Energy, Journal Year: 2025, Volume and Issue: unknown, P. 135047 - 135047

Published: Feb. 1, 2025

Language: Английский

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A landscape review on biodiesel combustion strategies to reduce emission

Energy Reports, Journal Year: 2023, Volume and Issue: 9, P. 4413 - 4436

Published: March 29, 2023

The study presents state-of-the-art literature on biodiesel combustion strategies for improving engine performance and reducing emissions. application of those in compression ignition engines is a prominent approach to harmful reveals that can significantly reduce CO, HC, PM However, the higher NOx emission characteristics compared fossil fuel concerning factor its application. In addition, physicochemical properties have also shown some complications during process. This article covers fundamental aspects, challenges, prospects, pros cons advanced such as low-temperature (LTC), chamber modifications, injection modifications directly influence rate formation. exhaust gas after-treatment systems effect operating parameters are briefly discussed presented this article. found LTC retarded timing showed significant reductions leaner mixtures but with poor control. Besides, pressure better through high turbulence swirl rates, leading more emission. review critically analyzed concluded incorporating mixture will form under low in-cylinder temperature conditions, favoring Finally, recommends studies needed obtain atmosphere by altering equivalence ratio optimizing (geometry nozzle) varying

Language: Английский

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Effects of biodiesel injector configuration and its injection timing on performance, combustion and emissions characteristics of liquid ammonia dual direct injection engine

Journal of the Energy Institute, Journal Year: 2024, Volume and Issue: 114, P. 101605 - 101605

Published: March 19, 2024

Language: Английский

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Exergy, energy, performance, and combustion analysis for biodiesel NOx reduction using new blends with alcohol, nanoparticle, and essential oil

Journal of Cleaner Production, Journal Year: 2024, Volume and Issue: 467, P. 142968 - 142968

Published: June 20, 2024

Biodiesel is considered one of the alternative replacements to fossil fuels. However, major challenge associated with its application in diesel engines higher level NOx emissions. Fuel modification technologies, where biodiesel blended various additives and fuels, have emerged as a distinguished method recent years improve engine performance reduce NOx. The study aims emissions by fuel techniques. Five blends were prepared using Tucuma along ethanol, carbon nanotubes, eucalyptus oil. deployed test bed at rated speed varying loads investigate performance, emission, combustion characteristics. results revealed that ethanol-blended fuels such DE10 TB10E10 had reduced 51.37% 9%, respectively, lower compared diesel. Although nanoparticle blend exhibited increased diesel, it demonstrated reductions 4.1%, 4.56%, 7.2%, 3.1% 25%, 50%, 75%, 100%, TB10. highlights tradeoffs observed between operating conditions parameters for blends, detailed this research. found TB10E10CNT20 exhibit improved close CO recommends further exploring impact injection rates they showed longer ignition delays since advancing can create better ethanol blends.

Language: Английский

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ANN and CFD driven research on main performance characteristics of solar chimney power plants: Impact of chimney and collector angle

Case Studies in Thermal Engineering, Journal Year: 2024, Volume and Issue: 60, P. 104568 - 104568

Published: May 22, 2024

Solar energy systems operate directly connected to the sun. chimney power plants are privileged that can provide output even in cloudy weather and during hours when there is no The design sizing of this system, which researchers focused on after its first application 1980s, very effective performance. In study, collector slope give maximum for Manzanares pilot plant investigated with a 3D CFD model. Simulations made using RNG k-e turbulence model DO (discrete ordinates) solar ray tracing algorithm results high compatibility experimental data literature. It understood system provides at 0.6° 1.5° divergence angle. seen gives approximately 46 kW reference case, exceeds by 4.5 times reaches 216.853 includes slope. effects main elements performance also included changing radius height while preserving these inclination angles. More than 49.233 kW, be achieved inclined design, 73.2 m 155.68 m. Although effect increasing continues 1.2 floors, decreases. it greater increase output. Furthermore, scope extends incorporation an Artificial Neural Network (ANN) model, presenting novel approach predicting SCPP findings ascertain utilisation 9 neurons hidden layer ANN, demonstrating precise alignment study data.

Language: Английский

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Extraction and characterization of Cucumis melon seeds (Muskmelon seed oil) biodiesel and studying its blends impact on performance, combustion, and emission characteristics in an internal combustion engine

Energy Conversion and Management X, Journal Year: 2024, Volume and Issue: 23, P. 100637 - 100637

Published: May 28, 2024

This study examines the performance, combustion, and emissions characteristics of a single-cylinder internal combustion diesel engine when fueled with blend biodiesel derived from muskmelon seeds. The kinematic viscosity extracted seed oil was 6.1 cSt at 40 °C, which is higher than petroleum 2.6 cSt. Muskmelon further analyzed using thin-layer chromatography (TLC) high-voltage separator tests. A comparison fuel properties conventional revealed that could be used alone or in diesel–biodiesel to compression engines. In this study, blended proportions 10 %, 20 50 % (BD10, BD20, BD50, respectively). At relatively low rotational speed 1200 rpm, brake thermal efficiency (BTE) operated BD10 BD20 blends were 36.1 36.0 respectively, while brake-specific consumption (BSFC) two 0.260 kg/kWh, 0.262 respectively. These values closely resemble those typically observed Indeed, average BTE only 3.24 less fuel. Diesel generates NOx SO2 compared blends: BD100 emitted most pollution all fuels tested. addition, released significantly more other However, outperformed terms CO, NOx, high speeds. exception H2S emissions, BD50 BD100. also exhibited reduced CO fuel, blends. Our findings best performance lower among words, ideal for use engines does not require any alterations engine. waste seeds represent non-edible stream can exploited production allowing upcycling potentially problematic thermochemical conversion feedstock. valuable energy sector address wastefulness associated particular stream.

Language: Английский

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Advancements in Catalysts, Process Intensification, and Feedstock Utilization for Sustainable Biodiesel Production

Results in Engineering, Journal Year: 2024, Volume and Issue: unknown, P. 103668 - 103668

Published: Dec. 1, 2024

Language: Английский

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Parametric optimization of flow in a solar chimney power plant under variable semi elliptical constraints

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Jan. 2, 2025

In response to the ongoing quest for more efficient renewable energy sources, this research addresses a significant gap in understanding performance variations of Solar Chimney Power Plant (SCPP) models, particularly focusing on influence flow parameters full and half-inclined collector sections featuring semi-elliptical curvature. The motivation stems from need optimize SCPP designs enhanced generation while minimizing resource utilization environmental impact. This focuses investigating parameter models with curvature variable semi-minor heights (b: 0.01–0.03 m). six including divergent chimneys (4 m), diameter (2.6 0.04 m inlet height at 10° positive inclination, were categorized into Full Inclined Semi Elliptical Plants (FSCPP-1,2,3) Half (HSCPP-1,2,3). Initially, ANSYS-FLUENT utilized computational approximation. greater maximum magnitudes selected experimentation. FSCPP-1 HSCPP-1 demonstrated superior performance, achieving higher velocities (4.31 m/s, 4.49 m/s) under temperature rise 35 K 36 K. Experimental results aligned well data. Validation straight tower inclined solar chimney (SSCPP) existing literatures concluded that profile model (HSCPP-1) enhances overall system performance. addition, comparison between experimental approaches revealed an error approximation up 5%. outperformed its subgroup velocity enhancements 5% 2%, surpassed group 4% 1% enhancement. SSCPP highlighted 42% FSCPP 44% HSCPP models. magnitude enhancement 2% magnitude, emphasizing (0.01–0.03 m) progressing towards minimal percentage enhancements.

Language: Английский

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