Results 11 to 20 of about 73,378 (313)

An earth pole-sitter using hybrid propulsion [PDF]

AIAA/AAS Astrodynamics Specialist Conference, 2010
In this paper we investigate optimal pole-sitter orbits using hybrid solar sail and solar electric propulsion (SEP). A pole-sitter is a spacecraft that is constantly above one of the Earth's poles, by means of a continuous thrust.
Becerra V. M., Betts J. T., Driver J. M., Fahroo F., Fornberg B., Mengali G., Powell M. J. D., Quarta A. A., Wertz J. R.   +8 more
core   +4 more sources

Desain Konseptual Hybrid Propulsion Mesin Diesel dengan Motor Listrik pada Tugboat 70 Ton Bollard Pull Untuk Aplikasi di Pelabuhan [PDF]

Jurnal Teknik ITS, 2015
Tugboat Adalah Salah Satu Jenis Kapal Yang Berfungsi Untuk Membantu Menarik Kapal Besar Di Area Pelabuhan. Dalam Menjalankan Kerjanya, Tugboat Beroperasi Pada Mode Operasi Yang Berbeda – Beda.
Imron Noor Ardiwijaya, Indrajaya Gerianto, I Made Ariana   +2 more
doaj   +1 more source

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

E3S 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, Vasilieva Elizaveta, Mikhailova Alexandra, Eremenko Vladislav, Goryukhin Maxim, Krasnoperov Daniil   +5 more
doaj   +1 more source

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

E3S 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, Langone Leonardo, Vadi Riccardo, Andreini Antonio   +3 more
doaj   +1 more source

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

Aerospace, 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, Esteban Valencia, Ariel Herrera, Edgar Cando, Marcelo Pozo   +4 more
doaj   +1 more source

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

Journal 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, Yan-Jie Tan, Mohan Venkatesh Kumar   +2 more
doaj   +1 more source

Bridging the Technology Gap: Strategies for Hybrid Rocket Engines

Aerospace, 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, Jouke Hijlkema, Jérôme Anthoine   +2 more
doaj   +1 more source

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

International 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, Bingjie Zhu, Zhongxi Hou, Xixiang Yang, Jiaqi Zhai   +4 more
doaj   +1 more source

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

Energies, 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, Iwona Michalska-Pozoga   +1 more
doaj   +1 more source

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

Energies, 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, Wojciech Cieslik, Filip Szwajca   +2 more
doaj   +1 more source