Results 1 to 10 of about 429,181 (200)

Alternative fuels

open access: yesProceedings of the International Science Conference "Ecology. Human. Society", 2021
В роботі наведено детальний аналіз стану галузі паливно-енергетичних ресурсів. Проаналізовано основні тенденції щодо використання ключових традиційних джерел енергії як в Україні, так і в Світі в цілому. Наведено головні недоліки та екологічні проблеми, пов’язані з використанням традиційних видів палива. Автором проаналізовано всі варіанти використання
Michael Hilgers, Wilfried Achenbach
  +6 more sources

Measurements of the laminar flame speed of premixed, hydrogen-air-argon stagnation flames

open access: yesApplications in Energy and Combustion Science, 2021
As the foundation for detailed hierarchical combustion chemistry models, the accuracy of the hydrogen oxidation mechanism is paramount to achieve truly predictive models.
Antoine Durocher   +3 more
doaj   +1 more source

Marine Demonstration of Alternative Fuels on the Basis of Propulsion Load Sharing for Sustainable Ship Design

open access: yesJournal of Marine Science and Engineering, 2023
As the IMO aims to reduce greenhouse gas emissions from ships by more than 50% by 2050 compared to 2008, the paradigm of the shipbuilding and shipping industries is changing.
Hyungwon Shim   +4 more
doaj   +1 more source

Hydrodynamic effect of nanosecond repetitively pulsed discharges produced throughout a laminar stagnation flame

open access: yesApplications in Energy and Combustion Science, 2023
Plasma-assisted combustion has the potential to improve flame stability and combustion performance. Among all the different types of plasma source, nanosecond repetitively pulsed (NRP) discharges have received a lot of attention since they can produce ...
Julien Lambert   +3 more
doaj   +1 more source

Dynamical Sliding Mode Control for Robust Dynamic Positioning Systems of FPSO Vessels

open access: yesJournal of Marine Science and Engineering, 2022
The conventional proportional derivative (PD) control algorithm with appropriate gain scheduling is generally applied to a dynamic positioning (DP) system. However, finding appropriate gains through gain scheduling makes the DP system more complicated. A
Seongpil Cho   +2 more
doaj   +1 more source

Preliminary Feasibility Study of a Magnetic Levitation Rotor Sail for Coastal Area Operations

open access: yesJournal of Marine Science and Engineering, 2023
The continuous strengthening of environmental regulations is expected to have a significant impact on the vessel operations of shipping companies. Each country must reduce greenhouse gas emissions from ships operating in domestic coastal areas to meet ...
Kwangseok Lee   +4 more
doaj   +1 more source

Alternative fuels in aviation [PDF]

open access: yesCEAS Aeronautical Journal, 2014
During the last years, the aviation sector has been looking into alternatives to kerosene from crude oil, to combat climate change by reduction of greenhouse gas (GHG) emissions and to ensure security of supply at affordable prices. The efforts are also a reaction to commitments and policy packages.
Braun-Unkhoff, Marina, Riedel, Uwe
openaire   +3 more sources

Machine learning techniques to increase the performance of indirect methane quantification from a single, stationary sensorSynopsis

open access: yesHeliyon, 2022
Researchers are searching for ways to better quantify methane emissions from natural gas infrastructure. Current indirect quantification techniques (IQTs) allow for more frequent or continuous measurements with fewer personnel resources than direct ...
Robert S. Heltzel   +4 more
doaj   +1 more source

Investigating cylinder deactivation as a low fuel-penalty thermal management strategy for heavy-duty diesel engines

open access: yesFrontiers in Mechanical Engineering, 2022
The upcoming ultra-low-NOx (oxides of nitrogen) emissions standard and in-use NOx emissions requirement requires engine manufacturers to further reduce tailpipe NOx emissions by over 90% from the current United States Environmental Protection Agency 2010
Christian Hushion   +7 more
doaj   +1 more source

Application of Buoyancy Support System to Secure Residual Buoyancy of Damaged Ships

open access: yesJournal of Marine Science and Engineering, 2023
SOLAS (Safety of Life at Sea), which was first enacted in 1914 as a result of the Titanic disaster, presents mandatory requirements for ship safety, such as the adoption of watertight bulkheads.
Gyeong Joong Lee   +3 more
doaj   +1 more source

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