Ultrasound-driven seawater splitting catalysed by TiO2 for hydrogen production

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 111, P. 723 - 734

Published: Feb. 27, 2025

Language: Английский

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A novel trigeneration energy system with two modes of operation for thermal energy storage and hydrogen production

Energy, Journal Year: 2024, Volume and Issue: 304, P. 132121 - 132121

Published: June 17, 2024

This article introduces a new trigeneration system designed to meet the escalating energy demands by harnessing solar energy. Notably, features dual-mode operation and integrates ultrasound technology for hydrogen production, enabling it adapt varying levels of production seamlessly transitioning between two modes. Through comprehensive energy, exergy, environmental analyses, this study evaluates system's performance its advantages. The results demonstrate that achieves exergy efficiencies 58.28% 76.75%, respectively. Moreover, demonstrates that, under sunlight conditions, can produce at rate 1 kg/h deliver power output 1957 kW. During periods utilizing thermal storage, is capable generating approximately 0.8 an electrical 1481.2 analysis indicates eco-friendly, with potential reduce carbon dioxide emissions 4.54 kg/kWh. These underscore efficacy contribution toward more sustainable environmentally friendly future.

Language: Английский

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Ultrasonic impact treatment of CoCrWNi superalloys for surface properties improvement

Materials Testing, Journal Year: 2025, Volume and Issue: 67(2), P. 372 - 385

Published: Jan. 21, 2025

Abstract The effect of ultrasonic impact treatment (UIT) was studied on the surface microstructure, roughness parameters, micro- and nanoscale mechanical properties, residual stress, scratch friction behavior L-605 CoCrWNi alloy. According to results, UIT increased hardness alloy where 1-pass UITed sample (∼690 HV) higher than that annealed by about 120 %. This attributed accumulation strain, strain-induced martensitic transformation (SIMT), formation ultrafine grains. also changed tensile stress as-received compressive state. stylus profilometry showed applying 3-pass substantially decreased average R a resulted in negative skewness with an improved ratio. nanoindentation/nanoscratch first pass nanohardness, H E r −1 ratio, 3 −2 ratio 230 %, 200 280 respectively. reduced depth/width nanoscratch groove, lowered amount piled-up material, coefficient (AFC).

Language: Английский

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Thermodynamic, Exergo-environmental, and Thermoeconomic Assessment of a High-Capacity Heat and Power Generation System with Hydrogen Production: A Case Study on Municipal Solid Waste Combustion, Geothermal Fluid Utilization, Parametric Sensitivity Analysis, and Integrated CO2 Capture

Process Safety and Environmental Protection, Journal Year: 2025, Volume and Issue: unknown, P. 107163 - 107163

Published: April 1, 2025

Language: Английский

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Investigating sono-electrolysis for hydrogen generation and energy optimization

International Communications in Heat and Mass Transfer, Journal Year: 2025, Volume and Issue: 164, P. 108980 - 108980

Published: April 25, 2025

Language: Английский

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Modeling and simulation of a novel chemical process for clean hydrogen and power generation

Computers & Chemical Engineering, Journal Year: 2024, Volume and Issue: 188, P. 108767 - 108767

Published: June 11, 2024

The present work aims to develop a novel chemical process for clean hydrogen and power production simulate it accordingly through unique thermodynamic equilibrium model. This particular is based on partial oxidation of sulfide (H2S) at superadiabatic conditions study its respective products. simulation H2S developed the model first time in Aspen Plus. further studied by varying different operating variables with an overall goal optimizing conversion into hydrogen. predicts satisfactory H2 flow rate coupled low-sulfur dioxide (SO2) output within regime pressure below 0.5 bar. then found be 23.48 % 0.25 energy exergy efficiencies system are 87.51 70.08 respectively. dissociation presence stoichiometric air results elemental sulfur rates 0.0019 kg/s 0.0012 kg/s,

Language: Английский

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Experimental testing of a novel sonic method for clean hydrogen generation

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 82, P. 206 - 217

Published: Aug. 1, 2024

This study introduces a novel method for hydrogen fuel generation using ultrasound technology through the disassociation of water into and oxygen. The proposed experimental setup comprises several key components: power supply, an ultrasonic generator, two transducers, reactor vessel, vapor traps, condenser, valve, storage, humidity sensor measurement sensor. system operates at 100 W frequency 40 kHz, vessel contains 2L solution. results show variability in production rates under different conditions. distilled used experiments 25 °C produces rate 0.05 μmol/min, which increases to 0.066 μmol/min 70 °C. tap gives ranging from 0.044 0.06 lake between 0.036 0.054 while wastewater ranges 0.028 μmol/min. present investigates effect CO2 injection sonoreactor on performance shows that increase over 20-min period resources, with higher flow leading improved rates. These findings demonstrate potential eco-friendly production, marking promising alternative conventional methods contributing valuable insights field sustainable energy.

Language: Английский

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Catalyst-Free Regeneration of Plasma-Activated Water via Ultrasonic Cavitation: Removing Aggregation Concealment of Antibiotic-Resistant Bacteria with Enhanced Wastewater Sustainability

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 479, P. 135705 - 135705

Published: Aug. 30, 2024

Language: Английский

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Insights into sono-electrochemical advances for hydrogen production: An in-depth analysis

International Journal of Green Energy, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 22

Published: Nov. 15, 2024

This review aims to comprehensively examine the potential of ultrasonic fields significantly enhance water electrolysis efficiency. By optimizing cell voltage, efficiency, and energy consumption, ultrasound presents a promising avenue for revolutionizing hydrogen production. The commences by examining foundational principles sonochemical electrochemical processes. Subsequently, it delves into recent advancements in sono-electrochemical production, providing in-depth analysis contemporary research. concludes addressing field's current limitations outlining avenues future development this innovative technology. Despite improvements obtained presence terms reducing voltage overpotential, as well increasing overall efficiency sonoelectrochemical system, various issues remain be resolved studies. These include detailed mechanism ultrasound-enhanced optimal conditions frequency, acoustic power, electrode materials surfaces, solution temperature, addition deeper understanding kinetics formation its plausible generation from non-aqueous solutions.

Language: Английский

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Machine learning in PEM water electrolysis: A study of hydrogen production and operating parameters

Computers & Chemical Engineering, Journal Year: 2024, Volume and Issue: unknown, P. 108954 - 108954

Published: Nov. 1, 2024

Language: Английский

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