Design and Initial Flight Tests of a Hydrogen Fuel Cell Powered Unmanned Air Vehicle (UAV)

2019 ◽  
Vol 26 (1) ◽  
pp. 433-444 ◽  
Author(s):  
Thomas A. Ward ◽  
Norhisyam Jenal
Keyword(s):  
Fuel Cell ◽  
Hydrogen Fuel Cell ◽  
Hydrogen Fuel ◽  
Flight Tests ◽  
Unmanned Air Vehicle ◽  
Air Vehicle

Power Installation of an Unmanned Air Vehicle Based on a Hydrogen Fuel Cell

2019 ◽  
Author(s):  
Ivan V. Vasyukov ◽  
Nikita A. Faddeev ◽  
Andrew S. Kramarov ◽  
Andrew A. Gummel ◽  
Vladimir S. Puzin ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Power Installation ◽  
Hydrogen Fuel Cell ◽  
Hydrogen Fuel ◽  
Unmanned Air Vehicle ◽  
Air Vehicle

scholarly journals Design and Testing of a Vertical Take-Off and Landing UAV Optimized for Carrying a Hydrogen Fuel Cell with a Pressure Tank

2020 ◽  
Vol 08 (04) ◽  
pp. 279-285
Author(s):  
Christophe De Wagter ◽  
Bart Remes ◽  
Rick Ruijsink ◽  
Freek van Tienen ◽  
Erik van der Horst
Keyword(s):  
Fuel Cell ◽  
Force Balance ◽  
Area Network ◽  
Hydrogen Fuel Cell ◽  
Forward Flight ◽  
Pressure Tank ◽  
Unmanned Air Vehicle ◽  
Air Vehicle ◽  
Battery Technology ◽  
Design And Testing

Flight endurance is still a bottleneck for many types of unmanned air vehicle (UAV) applications. While battery technology improves over the years, for flights that last an entire day, batteries are still insufficient. Hydrogen-powered fuel cells offer an interesting alternative but pose stringent requirements on the platform. The required cruise power must be sufficiently low and flying with a pressurized tank poses new safety and shape constraints. This paper proposes a hybrid transitioning UAV that is optimized towards carrying a hydrogen tank and fuel cell. Hover is achieved using 12 redundant propellers connected to a dual Controller Area Network (CAN) bus and dual power supply. Forward flight is achieved using a tandem wing configuration. The tandem wing not only minimizes the required wingspan to minimize perturbations from gusts during hover, but it also handles the very large pitch inertia of the inline pressure tank and fuel cell very well. During forward flight, 8 of the 12 propellers are folded while the tip propellers counteract the tip vortexes. The propulsion is tested on a force balance and the selected fuel cell is tested in the lab. Finally, a prototype is built and tested in-flight using battery power. Stable hover, good transitioning properties, and stable forward flight are demonstrated.

Comparative Study Between the Hydrogen Fuel Cell and the Alcohols Fuel Cells Based on Electrical, Thermodynamic and Energetic Properties

2018 ◽  
Vol 6 (2) ◽  
pp. 56
Author(s):  
Mohamed Elaguab ◽  
Tayeb Allaoui ◽  
Abdelkader Chaker ◽  
Abdellah Kouzou ◽  
Lalia Merabet
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Comparative Study ◽  
Hydrogen Fuel Cell ◽  
Hydrogen Fuel ◽  
Energetic Properties

Aerostructural Wing Optimization for a Hydrogen Fuel Cell Aircraft

2021 ◽  
Author(s):  
Benjamin J. Brelje ◽  
Joaquim R. R. A. Martins
Keyword(s):  
Fuel Cell ◽  
Hydrogen Fuel Cell ◽  
Hydrogen Fuel ◽  
Wing Optimization ◽  
Fuel Cell Aircraft

Sensing advancement towards safety assessment of hydrogen fuel cell vehicles

2021 ◽  
Vol 489 ◽  
pp. 229450
Author(s):  
Sahar Foorginezhad ◽  
Masoud Mohseni-Dargah ◽  
Zahra Falahati ◽  
Rouzbeh Abbassi ◽  
Amir Razmjou ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Safety Assessment ◽  
Fuel Cell Vehicles ◽  
Hydrogen Fuel Cell ◽  
Hydrogen Fuel ◽  
Hydrogen Fuel Cell Vehicles

scholarly journals Comparative TCO Analysis of Battery Electric and Hydrogen Fuel Cell Buses for Public Transport System in Small to Midsize Cities

Energies ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4384
Author(s):  
Hanhee Kim ◽  
Niklas Hartmann ◽  
Maxime Zeller ◽  
Renato Luise ◽  
Tamer Soylu
Keyword(s):  
Fuel Cell ◽  
Transport System ◽  
Public Transport ◽  
Transport Sector ◽  
Hydrogen Fuel Cell ◽  
Hydrogen Fuel ◽  
Fuel Cost ◽  
The Public ◽  
Public Transport System ◽  
Bus Body

This paper shows the results of an in-depth techno-economic analysis of the public transport sector in a small to midsize city and its surrounding area. Public battery-electric and hydrogen fuel cell buses are comparatively evaluated by means of a total cost of ownership (TCO) model building on historical data and a projection of market prices. Additionally, a structural analysis of the public transport system of a specific city is performed, assessing best fitting bus lines for the use of electric or hydrogen busses, which is supported by a brief acceptance evaluation of the local citizens. The TCO results for electric buses show a strong cost decrease until the year 2030, reaching 23.5% lower TCOs compared to the conventional diesel bus. The optimal electric bus charging system will be the opportunity (pantograph) charging infrastructure. However, the opportunity charging method is applicable under the assumption that several buses share the same station and there is a “hotspot” where as many as possible bus lines converge. In the case of electric buses for the year 2020, the parameter which influenced the most on the TCO was the battery cost, opposite to the year 2030 in where the bus body cost and fuel cost parameters are the ones that dominate the TCO, due to the learning rate of the batteries. For H2 buses, finding a hotspot is not crucial because they have a similar range to the diesel ones as well as a similar refueling time. H2 buses until 2030 still have 15.4% higher TCO than the diesel bus system. Considering the benefits of a hypothetical scaling-up effect of hydrogen infrastructures in the region, the hydrogen cost could drop to 5 €/kg. In this case, the overall TCO of the hydrogen solution would drop to a slightly lower TCO than the diesel solution in 2030. Therefore, hydrogen buses can be competitive in small to midsize cities, even with limited routes. For hydrogen buses, the bus body and fuel cost make up a large part of the TCO. Reducing the fuel cost will be an important aspect to reduce the total TCO of the hydrogen bus.

scholarly journals Performance analysis of hydrogen fuel cell with two-stage turbo compressor for automotive applications

2021 ◽  
Vol 7 ◽  
pp. 2635-2646
Author(s):  
Nabeel Ahsan ◽  
Ans Al Rashid ◽  
Asad A. Zaidi ◽  
Ramsha Imran ◽  
Sikandar Abdul Qadir
Keyword(s):  
Fuel Cell ◽  
Performance Analysis ◽  
Hydrogen Fuel Cell ◽  
Automotive Applications ◽  
Hydrogen Fuel ◽  
Two Stage ◽  
Turbo Compressor

How early hydrogen fuel cell vehicle adopters geographically evaluate a network of refueling stations in California

2020 ◽  
Vol 89 ◽  
pp. 102897 ◽  
Author(s):  
Scott Kelley ◽  
Aimee Krafft ◽  
Michael Kuby ◽  
Oscar Lopez ◽  
Rhian Stotts ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Fuel Cell Vehicle ◽  
Hydrogen Fuel Cell ◽  
Hydrogen Fuel
Sign in / Sign up

Export Citation Format

Share Document