Results 81 to 90 of about 1,304,577 (293)

Spectral and Physicochemical Properties of Biodiesel Developed from Acacia sieberiana: A Potential Novel Renewable Fuel

open access: yesFuels
In this work, the use of biodiesel derived from Acacia sieberiana (commonly referred to as “Bagaruwa”) seed oil is presented as a potential renewable fuel for compression ignition engines.
Muhammad Usman Kaisan   +5 more
doaj   +1 more source

Hybrid renewable power systems for mobile telephony base stations in developing countries

open access: yes, 2013
Published ArticleThis paper investigates the possibility of using hybrid Photovoltaic–Wind renewable systems as primary sources of energy to supply mobile telephone Base Transceiver Stations in the rural regions of the Democratic Republic of Congo.
Vermaak, Herman Jacobus   +1 more
core  

NREL (National Renewable Energy Laboratory) Fact Sheets [PDF]

open access: yes, 2012
This NREL Hydrogen and Fuel Cell Technical Highlight describes how hydrogen photoproduction activity in algal cultures can be improved dramatically by increasing the gas-phase to liquid-phase volume ratio of the photobioreactor. NREL, in partnership with

core   +1 more source

In Situ Alkali Metal Exfoliation‐Coupled Dilute CO2 Electrolysis to Synthesize Interlayer‐Expanded Graphite for High‐Rate Lithium Storage

open access: yesAdvanced Science, EarlyView.
Converting CO2 into advanced carbon materials capable of meeting the rapid lithium storage demands of lithium‐ion batteries creates a mutually beneficial scenario for both energy and environmental sectors. Here, we propose a stepwise CO2 electrolysis approach to transform dilute CO2 into interlayer‐expanded graphite using molten salt electrolyzers ...
Hao Zha   +8 more
wiley   +1 more source

LIFE CYCLE COSTING DAN EKSTERNALITAS BIODIESEL DARI MINYAK SAWIT DAN MINYAK ALGA DI INDONESIA (Life Cycle Costing and Externities of Palm and Algal Biodiesel in Indonesia)

open access: yesJurnal Manusia dan Lingkungan, 2014
ABSTRAK Biaya produksi biodiesel menjadi salah satu hambatan program konversi bahan bakar minyak ke biodiesel negara-negara termasuk Indonesia dalam upaya mengantipasi terjadinya krisis energi.
Arif Dwi Santoso, Sudaryono Sudaryono
doaj   +1 more source

Ferroelectric Catalysts in the Hydrogen Evolution Reaction: A Perspective

open access: yesAdvanced Science, EarlyView.
This perspective summarizes recent advances in ferroelectric (FE) catalysts for the hydrogen evolution reaction (HER). It first introduces HER fundamentals and FE mechanisms, then classifies FE catalysts into single‐phase, single‐atom‐modified, heterostructured, and other engineered types, with representative examples.
Rongxuan Lu   +6 more
wiley   +1 more source

Comparing How Energy Policy Uncertainty, Geopolitical Risk, and R&D Investment Shapes Renewable Energy and Fossil Fuels

open access: yesEnergies
This study examines the comparative impact of energy policy uncertainty, geopolitical risk, and R&D expenditures on renewable and fossil fuel consumption in China from 2002m1 to 2022m12, using Fourier ADL, fully modified and dynamic ordinary least ...
Selin Karlilar Pata, Ugur Korkut Pata
doaj   +1 more source

Maximizing the Energy Output of Soft Electrohydraulic Generators

open access: yesAdvanced Science, EarlyView.
Many energy resources cannot be viably harvested with electromagnetic generators. This article evaluates the potential of soft electrohydraulic generators as an alternative approach for energy capture. An analytical model charts their operational limits and a rigorous experimental study results in new performance benchmarks with maximum specific energy
Sophie Kirkman   +7 more
wiley   +1 more source

Construction of Biodigesters to Optimize the Production of Biogas from Anaerobic Co-Digestion of Food Waste and Sewage

open access: yesEnergies, 2018
The objective of this study was to build and develop anaerobic biodigesters for optimization of biogas production using food waste (FW) and sewage (S) co-digestion from a wastewater treatment plant (WWTP).
Claudinei de Souza Guimarães   +2 more
doaj   +1 more source

Hydrogen Storage Needs for Early Motive Fuel Cell Markets [PDF]

open access: yes, 2012
The National Renewable Energy Laboratory's (NREL) objective for this project is to identify performance needs for onboard energy storage of early motive fuel cell markets by working with end users, manufacturers, and experts.
Caton, M.   +3 more
core   +1 more source

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