Results 131 to 140 of about 1,105,838 (401)

Enhanced Hydrogenation of Cyclohexanone: A Multi‐Scale Investigation Into Noncatalytic and Catalytic Pathways Towards Sustainable Conversion

open access: yesEnergy Science &Engineering, EarlyView.
ABSTRACT The selective hydrogenation of oxygenated compounds is crucial for the conversion of biocrude into platform chemicals. However, the presence of stable oxygenated species, cyclohexanone, in biocrude limits possess a challenge for easy conversion process.
Ishaq Kariim   +4 more
wiley   +1 more source

Behavior of a CI Engine Running by Biodiesel under Transient Conditions [PDF]

open access: yes, 2010
The emission characteristics of compression ignition (CI) engines running on biodiesel during transient operating conditions, which is the most usual case in urban and extra-urban transportation, have rarely been investigated.
Gu, Fengshou   +2 more
core  

Noise, Vibration, and Harshness (NVH) Challenges in Hydrogen Internal Combustion Engine Vehicles

open access: yesEnergy Science &Engineering, EarlyView.
ABSTRACT This paper presents a state‐of‐the‐art literature review on noise, vibration, and harshness (NVH) in hydrogen‐fuelled internal combustion engines. Studies published between 2011 and 2025 were screened, covering fundamental flame physics, test‐bench work, and recent prototype vehicles.
Krisztián Horváth
wiley   +1 more source

Thermo-regulation Of Fuel In Diesel Engines Using MathematicalModels Yamz-238

open access: diamond, 2023
AL – MAIDI A. H   +2 more
openalex   +1 more source

Thermal Energy Storage Improvement in a Tube‐in‐Tube Heat Exchanger With Innovative Design of Extra‐Fins Configurations

open access: yesEnergy Science &Engineering, EarlyView.
Optimization of fin configuration to minimize material use and improve energy storage efficiency. The optimal configuration reduced full melting time by 33.88%. The proposed design approach improved thermal efficiency and sustainability in energy systems. ABSTRACT Energy and the environment are essential issues worldwide.
Behnam Ataeiyan
wiley   +1 more source

Hydrogen Fuel Cell Technologies for Decarbonization: Opportunities, Challenges, and Strategic Pathways—A Comprehensive Review

open access: yesEnergy Science &Engineering, EarlyView.
ABSTRACT Hydrogen (H2) fuel cells are increasingly recognized as a cornerstone technology in the global transition toward clean energy due to their high efficiency and zero‐emission characteristics. This review synthesizes recent progress, challenges, and strategic pathways for the deployment of H2 fuel cells across the transportation, power generation,
Yash Sachin Gupta   +5 more
wiley   +1 more source

Effect of Ferrofluid on the Performance and Emission Patterns of a Four-Stroke Diesel Engine

open access: yesAdvances in Mechanical Engineering, 2011
Experimental tests were carried out to investigate the effects of adding water-based ferrofluid to diesel fuel in a diesel engine. These effects included the combustion performance and exhaust emission characteristics of the diesel engine.
M. B. Shafii   +3 more
doaj   +1 more source

Compound cycle engine for helicopter application [PDF]

open access: yes
The Compound Cycle Engine (CCE) is a highly turbocharged, power compounded, ultra-high power density, light-weight diesel engine. The turbomachinery is similar to a moderate pressure ratio, free power turbine engine and the diesel core is high speed and ...
Castor, Jere G.
core   +1 more source

Simulations of Photovoltaic Systems on Different Types of Ships in Sweden: Solar Energy Generation, Comparison to Energy Consumption, and Reduction of CO2 Emission

open access: yesEnergy Science &Engineering, EarlyView.
Investigation of the potential of using solar cells on different types of ships, to see how it reduces energy consumption and emissions of carbon dioxide (CO2). From the reduction in fuel consumption, the fuel cost reduction was estimated, and an approximate payback time for the solar cell system was calculated.
Joachim Wallenstein   +2 more
wiley   +1 more source

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