Results 21 to 30 of about 2,668,509 (239)

Literature Review on Thermodynamic and Kinetic Limitations of Thermal Decomposition of Methane

open access: yesEnergies
The state of the art in methane pyrolysis does not yet provide a definitive answer as to whether the concept of an elementary reaction is universally applicable to the apparently simple process of methane dissociation. Similarly, the literature currently
Andrzej Mianowski   +4 more
doaj   +1 more source

State of the Art of Fuel Cells for Ship Applications [PDF]

open access: yes, 2012
Fuel cells promise to be far more efficient, produce lower or zero emissions, and operate cleaner than conventional internal-combustion engine and gas turbine. They are already used for transportation application (buses, cars and tramways).
HAN, Jingang   +5 more
core   +1 more source

Reducing Environmental Impacts of Water Electrolysis Systems by Reuse and Recycling: Life Cycle Assessment of a 5 MW Alkaline Water Electrolysis Plant

open access: yesEnergies
The circular economy offers a vital avenue for sustainable development by optimizing resource utilization through reusing and recycling materials. This study focuses on the lifecycle assessment (LCA) of a 5 MW alkaline water electrolysis (AWE) system ...
Annika C. Hoppe, Christine Minke
doaj   +1 more source

Fuel economy improvement and emission reduction of 48 V mild hybrid electric vehicles with P0, P1, and P2 architectures with lithium battery cell experimental data

open access: yesAdvances in Mechanical Engineering, 2021
This paper intends to provide design selections of hybrid powertrain architectures in 48 V mild hybrid electric vehicles. Based on the location of the electric machine in the driveline, the hybrid powertrain architectures can be categorized into five ...
Yiqun Liu, Y Gene Liao, Ming-Chia Lai
doaj   +1 more source

Improving the effectiveness and equity of fuel economy regulations with sales adjustment factors

open access: yesiScience, 2022
Summary: Larger vehicles, such as sports utility vehicles, consume more energy than cars. Their increasing popularity runs contrary to the goal of fuel economy regulations to reduce fossil fuel consumption and greenhouse gas emissions and can be ...
Shiqi Ou   +8 more
doaj   +1 more source

Effect of air depletion in the preferential oxidation reactor and fuel depletion in a proton exchange membrane fuel cell system fueled by natural gas

open access: yesCase Studies in Thermal Engineering
This study estimates the steady-state performance of a proton exchange membrane fuel cell (PEMFC) under conditions of air depletion in the preferential oxidation reactor (PrOx) and fuel depletion at the anode, which has not been previously studied ...
Hwanyeong Oh   +5 more
doaj   +1 more source

Experimental Investigation on the Performance of an Aviation Piston Engine Fueled with Bio-Jet Fuel Prepared via Thermochemical Conversion of Triglyceride

open access: yesEnergies, 2022
Bio-jet fuels prepared by the thermochemical conversion of triglyceride can be used as complete substitutes of jet fuels. A bio-jet fuel prepared as a substitute of the RP-3 jet fuel and the RP-3 jet fuel itself were, respectively, used to fuel a small ...
Chen Zhang   +5 more
doaj   +1 more source

Analysis of three independent real-world driving studies : a data driven and expert analysis approach to determining parameters affecting fuel economy [PDF]

open access: yes, 2014
It is well established that individual variations in driving style have a significant impact on vehicle energy efficiency. The literature shows certain parameters have been linked to good fuel economy, specifically acceleration, throttle use, number of ...
McGordon, Andrew   +7 more
core   +1 more source

Production of Hydrogen from Biomass with Negative CO2 Emissions Using a Commercial-Scale Fluidized Bed Gasifier

open access: yesEnergies
Biomass gasification, as a thermochemical method, has attracted interest due to the growing popularity of biofuel production using syngas or pure hydrogen. Additionally, this hydrogen production method, when integrated with CO2 capture, may have negative
Tomasz Chmielniak   +4 more
doaj   +1 more source

Metastatic niche shaped by host factors influences disseminated cancer cell fate

open access: yesFEBS Letters, EarlyView.
Metastasis is shaped not only by cancer cells but also by the environments they encounter. This review explores how factors such as aging, diet, the microbiome, lifestyle, and environmental exposures remodel organ‐specific niches in the lung, liver, bone, and brain, influencing where metastatic cells survive, remain dormant, or grow, and ultimately ...
Gwennan Delyth Ward   +2 more
wiley   +1 more source

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