Results 101 to 110 of about 2,428,462 (268)

Techno‐Economic and Quasi‐Dynamic Load Flow Analysis of a Hybrid Renewable Microgrid for Coastal Industrial Loads

open access: yesEnergy Science &Engineering, EarlyView.
A hybrid PV–wind grid‐connected microgrid for Mongla Port is optimized using HOMER Pro and validated via DIgSILENT quasi‐dynamic load flow. The system achieves a low cost of energy (0.0341 USD/kWh), 70.9% renewable penetration, improved voltage stability, and significant emission reduction, demonstrating a reliable and cost‐effective solution for ...
Md. Behesty Hasan Sagor   +6 more
wiley   +1 more source

Glazing Effects on Dynamic‐Insulation TSC Façades: A CFD‐Supported Experimental Study of Flow, Heat Transfer, and Ventilation Preheating

open access: yesEnergy Science &Engineering, EarlyView.
Glazed transpired solar collectors achieve 48–75% efficiency and 11% more seasonal heat than unglazed designs by cutting convective losses, while both offer complementary benefits for ventilation preheating and dynamic wall insulation, with paybacks of 5.5–6.8 years.
Mohammad Fawaier   +7 more
wiley   +1 more source

The Feasibility Test of Electric Propulsion Systems: Case Study for a Light and Fixed‐Wing Aircraft

open access: yesEnergy Science &Engineering, EarlyView.
ABSTRACT This study investigates the feasibility and performance of a fully electric propulsion system (EPS) integrated into a light fixed‐wing aircraft. The system consists of a 65 kW‐class electric motor, a high‐efficiency inverter, and dual lithium‐ion battery packs with a total capacity of 27 kWh—collectively engineered to fulfill both power ...
Byeong Gyu Gang
wiley   +1 more source

Carbon-neutral aviation in Nigeria: Assessing the feasibility and impacts of sustainable aviation fuel adoption

open access: yesThe Proceedings of the Nigerian Academy of Science
This study investigates the feasibility and potential impacts of transitioning Nigeria's aviation industry towards carbon-neutral operations through the adoption of Sustainable Aviation Fuel (SAF). By examining Nigeria's aviation landscape, international
Adeniyi O. Oluwakoya
doaj   +1 more source

Aerial Seeding for Forest and Landscape Restoration: A Systematic Review of Technology, Challenges, and Future Directions

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Land degradation is a critical global challenge, threatening biodiversity, food security, and livelihoods. Ecological restoration has therefore become a priority, with aerial seeding emerging as a key method to address issues of scale, accessibility, and efficiency. By dispersing seeds from aircraft or drones, aerial seeding complements ground‐
James Maua   +4 more
wiley   +1 more source

Demand‐Driven Mergers: Advertising, Differentiation, and Welfare

open access: yesManagerial and Decision Economics, EarlyView.
ABSTRACT We consider mergers that induce demand changes. We study the firms' incentives to submit a merger request and the competition authority's decision to approve the request. We show that merger‐induced demand changes help expand settings where the interests of firms and competition authority align, whereas contexts where their interests are ...
Felix Munoz‐Garcia   +2 more
wiley   +1 more source

On the relationship between air connectivity and economic development: A comparative analysis of inequality evolution for 2000–2019

open access: yesTransport Economics and Management
Throughout the past decades, aviation has experienced a tremendous growth of passenger and cargo demand. This growth may come with problems however, when considering the Sustainable Development Goals set by the United Nations in 2015, particularly those ...
Xiaoqian Sun   +2 more
doaj   +1 more source

A Two‐Stage Optimization Approach for Selecting Electric‐Flight Airports

open access: yesNetworks, EarlyView.
ABSTRACT The decarbonization of short‐haul air transport has gained increasing attention, with electric aircraft emerging as a promising alternative to conventional short‐haul aviation. However, given the substantial investment anticipated for the necessary infrastructure, a strategic and globally coordinated selection of airports is imperative.
Imke Joormann   +2 more
wiley   +1 more source

Butanol for sustainable aviation [PDF]

open access: yes, 2018
Butanol is a four-carbon alcohol suited for the production of road and jet fuel. The ATJ-SPK (alcohol-to-jet synthetic paraffinic kerosene) pathway aims to obtain paraffinic kerosene from C2-C4 alcohols. The ASTM already approved the pathway for iso-butanol and ethanol with a blending certification of up to 30% and 50%, respectively.
Junicke, Helena; id_orcid 0000-0002-2513-2486   +2 more
openaire  

Combined Effects of Thermal Cycling Aging and Reinforcement Content on the Ball‐On‐Disk Wear of Additively Manufactured Polylactic Acid Composites

open access: yesPolymer Composites, EarlyView.
Thermal Aging and Tribological Tests of Additive Manufactured PLA Composites. ABSTRACT This study focuses on the additive manufacturing of pure polylactic acid (PLA) specimens and milled glass fiber (GF)‐filled PLA composites under thermal cycling aging and wear tests. Wear tracks have been analyzed via 3D optical profiling and SEM imaging.
Sinan Fidan   +5 more
wiley   +1 more source

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