The environmental impact of CO2 emissions is widely acknowledged, making the development alternative propulsion systems a priority. Hydrogen potential candidate to replace fossil fuels for transport applications, with three technologies considered onboard storage hydrogen: in form compressed gas, as cryogenic liquid, and solid. These are now competing meet requirements vehicle manufacturers; each has its own unique challenges that must be understood direct future research efforts. This paper...

Oceanic energy sources, notably offshore wind and wave power, present a significant opportunity to generate green hydrogen through water electrolysis. This approach allows for production, which can be efficiently transported existing pipelines stored in various forms, offering versatile solution tackle the intermittency of renewable sources potentially revolutionize entire electrical grid infrastructure. research focusses on assessing technical economic feasibility this method six strategic...

This study scrutinizes the thermomechanical dynamics of 3D-printed hydrofoil blades utilizing a carbon and glass bead-reinforced thermoplastic polymer. Comparative analyses underscore pivotal role polymer reinforcement in augmenting mechanical strength mitigating deformation residual stress. The investigation elucidates expeditious cost-efficient manufacturing potential low-cost Fused Filament Fabrication (FFF) printers for small-scale blades, revealing exemplary performance with nominal...

Biocomposites based on thermoplastic polymers and natural fibers have recently been used in wind turbine blades, to replace non-biodegradable materials. In addition, carbon nanofillers, including nanotubes (CNTs) graphene nanoplatelets (GNPs), are being implemented enhance the mechanical performance of composites. this work, Mori–Tanaka approach is for homogenization a polymer matrix reinforced by CNT GNP nanofillers first homogenization, then, second effective was with alfa E-glass...

One of the biggest problems facing use carbon nanotubes in reinforced composites is agglomeration within matrix phase. This phenomenon—caused by Van der Waals forces—leads to dispersion and weakens properties composites. research presents a multi-stage homogenization approach used investigate influence aspect ratio, volume fraction, nanofillers on effective mechanical polymer biocomposite containing randomly dispersed graphene nanoplatelets. The first stage consisted evaluating polymers...

Thermoset polymers offer great opportunities for mass production of fiber-reinforced composites and are being adopted across a large range applications within the automotive, aerospace, construction renewable energy sectors. They usually chosen marine engineering their excellent mechanical behavior, including low density low-cost compared to conventional materials. In environment, these materials confronted by severe conditions, thus there is necessity understand behavior under critical...

Abstract The future trends of wind turbine blade materials are mostly centered around utilizing lighter with improved life cycle and low cost. In modern blade, using green composite or biocomposite is a sustainable solution, especially for small natural fiber biodegradable polymer. this work, four fibers (Alfa, Flax, Sisal Hemp) used Polypropylene (PP) thermoplastic objective to evaluate the elastic muduli by two methods; Analytical Mori Tanaka theory numerical Digimat MF. results show good...

Wind energy is the kinetic of wind transformed into electrical by a system known as turbine. All different parts turbine, like blades, hub, gearbox, nacelle, and tower, blades are usually made glass carbon fibers for better strength, lower weight, resistance to corrosion. The main limitations these materials availability, non-biodegradable, health hazards, fabrication cost. development interwoven fabric based on natural fiber composite production novel approach that can be adopted address...

Nanoporous carbon derived from Moringa oleifera seed waste was synthesized by an original process of flash pyrolysis followed zinc chloride impregnation. The N2-adsorption–desorption results the optimized sample revealed a BET surface area 699.6 m2/g and pore size 2 nm. It evaluated for adsorption mono azo dye, methyl orange (MeO), aqueous solution. Four isothermal models (Langmuir, Freundlich, Dubinin–Radushkevic Temkin) were applied to fit experimental data. that Langmuir is most...

The vertical axis wind turbine (VAWT) design has several advantages for offshore installation. VAWT provides omnidirectional power, and its mechanical rotating mechanisms can be installed near sea level. In this paper, the selection of a suitable composite material floating H-Darrieus-type turbines with three-stage rotors properties are discussed. centrifugal forces acting on blades compared to values these evaluated aluminum blades. Abaqus software is used numerical simulations. appropriate...

Abstract The properties of materials used in building are enhanced by adding nanoparticles for improve energy efficiency. objective this study is to offer both numerical and analytical modeling methods the thermal conductivity mechanical property composite materials. Various mineral charges were employed reinforce organic matrices saturated polyester resin (UPR) with calcium carbonate (CaCo 3 ) expanded perlite particles. employs finite‐element software COMSOL conduct a investigation...

Novel textiles have received a lot of attention from researchers in the last decade due to some their unique features. The introduction intelligent materials into textile structures offers an opportunity develop multifunctional textiles, such as sensing, reacting, conducting electricity and performing energy conversion operations. In this research work nanocomposite-based highly piezoelectric electroactive β -phase new has been developed using pad-dry-cure method. deposition poly (vinylidene...

The global trend in additive manufacturing is the technology of three-dimensional (3D) printing with a high potential to avoid some weaknesses conventional fabrication techniques. This new has been used manufacture small tidal and wind turbines. In isolated areas, turbines can be manufactured assembled on-site for green energy production. purpose this document evaluate thermomechanical behavior printed turbine using Digimat-AM (Additive Manufacturing) fused filament method. finite element...

Abstract With time, the photovoltaic solar panels naturally soiled from dust and other elements. These soils prevent light to reach cell can reduce long-term profitability. The study demonstrates soiling effect on electrical characteristics of panels, productivity performance. A model simulation was developed in this direction order quantify compare performance clean dirty particles have been considered as spheres with an elliptical shadow panel. results prove a power loss 40% 0,224 mg/cm 2...

Abstract Conforming to the factor characteristics of electricity–water cogeneration power plants, an improved multieffect desalination (MED) and reverse osmosis (RO) are most current techniques for seawater desalination. A principal change between these operations consists their various energy requirements, thermal MED mechanical RO plants. The main improvement ideas recovery large quantities heat produced during production sulfuric acid, which exhibits exothermic reaction where a part this...

Abstract Because of their appealing properties, such as biodegradability, high basic stiffness, low density, and cost, natural fibers have begun to be used in a variety applications. In comparison synthetics, they are also reusable. The aim this work is develop new woven materials made wool Alfa (Stipa-tenacissima). extraction was achieved via alkaline treatment. chemical composition, mechanical physical properties the extracted were determined. Wovens produced using weaving taffetas...