Results 11 to 20 of about 4,969 (265)

Battery Energy Storage Systems in Ships’ Hybrid/Electric Propulsion Systems

open access: yesEnergies, 2023
The shipping industry is going through a period of technology transition that aims to increase the use of carbon-neutral fuels. There is a significant trend of vessels being ordered with alternative fuel propulsion.
Marcin Kolodziejski   +1 more
doaj   +3 more sources

Evaluation of Series and Parallel Hybrid Propulsion Systems for UAVs Implementing Distributed Propulsion Architectures

open access: yesAerospace, 2022
Current environmental policies for the aviation sector motivate the use of cleaner propulsion alternatives in order to reduce their CO2 footprint and noise pollution in the coming years.
Darwin Jimenez   +4 more
doaj   +3 more sources

A Review of Recent Developments in Hybrid Rocket Propulsion and Its Applications

open access: yesAerospace
This paper extensively reviews hybrid rocket propulsion-related activities from combustion engine designs to launch tests. Starting with a brief review of rocket propulsion development history, a comparison among the three bi-propellant rocket propulsion
Shih-Sin Wei   +4 more
doaj   +3 more sources

Conceptual Design and Control Schedule Optimization for Parallel Hybrid Propulsion System of Regional Turboprop Aircraft [PDF]

open access: yesE3S Web of Conferences, 2023
Current environmental policies for the aviation industry motivate the use of cleaner propulsion systems to reduce its CO2 and noise footprint in the coming years.
Mikhailov Alexey   +5 more
doaj   +1 more source

Assessment of a hybrid propulsion system for short-mid range application with a low-order code [PDF]

open access: yesE3S Web of Conferences, 2021
The increase in air traffic expected in the next years must be accompanied by innovation to ensure the lowest possible environmental impact. Hybrid electric-thermal propulsion systems are currently being investigated and could represent a breakthrough ...
Amerini Alberto   +3 more
doaj   +1 more source

Study of Hybrid Propulsion Systems for Lower Emissions and Fuel Saving on Merchant Ship during Voyage

open access: yesJournal of Marine Science and Engineering, 2022
The hybrid propulsion system is a vehicle propulsion system with two or more sources of propulsion such as diesel, batteries, and other renewable energy. The use of hybrid propulsion systems is not new, and they have been adopted worldwide.
Cheng Siong Chin   +2 more
doaj   +1 more source

Bridging the Technology Gap: Strategies for Hybrid Rocket Engines

open access: yesAerospace, 2023
Hybrid rocket propulsion, first demonstrated by the Russian GIRD-09 rocket in 1933, combines liquid oxidizer and solid fuel for thrust generation. Despite numerous advantages, such as enhanced safety, controllability, and potential environmental benefits,
Christopher Glaser   +2 more
doaj   +1 more source

Sizing and Mission Profile Analysis of the Hybrid-Electric Propulsion System for Retrofitting a Fixed Wing VTOL Aircraft

open access: yesInternational Journal of Aerospace Engineering, 2022
Hybrid-electric technology can be expected to improve the performance of fixed wing vertical takeoff and landing (VTOL) aircraft. In this paper, we demonstrated a method of retrofitting a single-energy propulsion system prototype with a hybrid-electric ...
Jianan Zong   +4 more
doaj   +1 more source

Energy Flow and Electric Drive Mode Efficiency Evaluation of Different Generations of Hybrid Vehicles under Diversified Urban Traffic Conditions

open access: yesEnergies, 2023
Hybrid propulsion dedicated to light duty vehicles is seen as an evolutionary change from internal combustion engine (ICE) to electric propulsion. Widespread direct replacement of convection ICEs in the current energy system is impossible because ICEs ...
Ireneusz Pielecha   +2 more
doaj   +1 more source

Developments in Marine Hybrid Propulsion

open access: yes2021 6th International Conference on Smart and Sustainable Technologies (SpliTech), 2021
The shipping sector is becoming increasingly aware of global environmental impact of ships and is forced, by international legislation, to gradually reduce its emissions. International conventions (IMO) and energy efficiency standards set challenges to shipping sector, to ship owners and ship designers, to offer propulsion concepts which will ...
Jelić, Maro   +3 more
openaire   +1 more source

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