The United States Navy (USN) is currently demonstrating the viability of environmentally sustainable alternative fuels to power its fleet comprised of aircraft and ships. As with any fuel used in a maritime setting, there is potential for introduction into the environment through transport, storage, and spills. However, while alternative fuels are often presumed to be eco-friendly relative to conventional petroleum-based fuels, their environmental fate and effects on marine environments are essentially unknown. Here, standard laboratory-based toxicity experiments were conducted for two alternative fuels, jet fuel derived from Camelina sativa (wild flax) seeds (HRJ5) and diesel fuel derived from algae (HRD76), and two conventional counterparts, jet fuel (JP5) and ship diesel (F76). Initial toxicity tests performed on water-accommodated fractions (WAF) from neat fuels partitioned into seawater, using four standard marine species in acute and chronic/sublethal tests, indicate that the alternative fuels are significantly less toxic to marine organisms.
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http://dx.doi.org/10.1016/j.chemosphere.2013.11.023 | DOI Listing |
Heliyon
January 2025
Department of Humanities and Social Sciences, Indian Institute of Technology Kharagpur, Kharagpur, India.
One way to fulfill the worldwide goal of clean energy outlined in SDG 7 is by adopting modern and alternative energy sources, specifically through electric cooking. Most rural households in developing countries, however, lack access to a clean and affordable energy source; thus, a significant part of the population relies on solid fuels. This study investigates the factors influencing households' willingness to pay for electricity services for cooking in rural areas of Southern Ethiopia, where access to clean and affordable energy is limited.
View Article and Find Full Text PDFEnergy Fuels
January 2025
Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, Washington 99354, United States.
The Co-Optimization of Fuels and Engines (Co-Optima) is a research and development consortia funded by the U.S. Department of Energy, which has engaged partners from national laboratories, universities, and industry to conduct multidisciplinary research at the intersection of biofuels and combustion sciences.
View Article and Find Full Text PDFSci Total Environ
January 2025
Department of Industrial Engineering, University of Salerno, Fisciano, Italy.
The International Convention for the Prevention of Pollution from Ships (MARPOL) has prohibited ships using of HFO in ports. For this reason, during in port operations, different strategies must be adopted, based on the use of cleaner fuels or on the transition towards marine electrical technologies. In this context, the purpose of the present research is to analyze and compare, from an environmental and economic points of view, different technical solutions for in port operations.
View Article and Find Full Text PDFPLoS One
January 2025
Department of Mathematics and Statistics, University of Energy and Natural Resources, Sunyani, Ghana.
Access to clean and efficient cooking fuel is crucial for promoting good health, safeguarding the environment, and driving economic growth. Despite efforts to promote the adoption of cleaner alternatives, traditional solid fuels such as charcoal and firewood remain prevalent in Ghana. In this study, we utilized a statistical mechanical model as a framework to explore the statistical relationship between socio-economic factors such as educational attainment, wealth status, place of residence, and cooking fuel choices.
View Article and Find Full Text PDFResearch (Wash D C)
January 2024
School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China.
The electrocatalytic carbon dioxide reduction reaction (CORR) at industrial-level current densities provides a sustainable approach to converting CO into value-added fuels and feedstocks using renewable electricity. However, the CORR conducted typically in alkaline and neutral electrolytes encounters some challenges due to the inevitable reaction between CO and OH ions, which undermines CO utilization and leads to poor operational stability. Acidic media present a viable alternative by reducing (bi)carbonate production, thereby enhancing the carbon efficiency and stability in CORR.
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